Kentucky Registered Environmental Health Specialist (REHS) Practice Test

These questions are part of the practice quiz. Start practicing

• What is the primary process involved in distillation of water?
• Which of the following is NOT a method for thawing TCS foods?
• What is the incubation period for Clostridium perfringens food poisoning?
• What are common symptoms of botulism?
• Which two protozoa are not affected by normal chlorination or UV radiation?
• Which of the following is a reservoir for Campylobacter Enteritis?
• Which of the following is NOT a symptom of Scombroid Fish Poisoning?
• Which of the following is NOT a component of the command staff in an ICS?
• What is the minimum reheating temperature for unserved food?
• What common symptom of Yersiniosis might be mistaken for appendicitis?
• What temperature should be maintained in the pool during fecal incident remediation?
• Milk that has been heated between 191-220°F is categorized as?
• Prior to the 19th Century, what was the common term for the belief that foul air caused infections?
• What is a common prevention method for exposure to Myiasis?
• According to the World Health Organization (WHO), what percentage of all diseases are attributable to inadequate water or sanitation?
• Which of the following is a reservoir for botulism?
• Combined chlorine in water treatment refers to what?
• What does it mean for a country to undergo an epidemiological transition?
• Which group of animals is a known reservoir for Campylobacter Enteritis?
• What term describes a person who carries a disease but shows no symptoms?
• Which substance is commonly found in hazardous wastes from vehicle maintenance?
• It is estimated that rats cause how much damage in economic terms each year?
• What type of waste is designated for class 4 landfills?
• What positions are included in the command staff of an Incident Command System (ICS)?
• Which type of well is considered least likely to become contaminated?
• What term refers to microorganisms that thrive in the absence of oxygen?
• What should you do if you encounter a wasp problem?
• How long can it take for mesothelioma to develop after asbestos exposure?
• Which organism serves as the primary reservoir for plague?
• What does HACCP stand for?
• Which of the following is a reservoir for Yersiniosis?
• What is the ideal pH level for a swimming pool?
• With sedimentation detention times of 10-30 days, what level of bacteria and virus removal can be expected?
• What should be regularly reviewed to verify that HACCP plans are correctly followed?
• Which of the following foods is NOT commonly associated with allergens?
• What is the specific agent responsible for Clostridium perfringens food poisoning?
• If cyanuric acid is used in a pool, the cyanurate levels should not exceed what amount in ppm?
• What is the average incubation period for amebiasis?
• When are Alpha and Beta emitters considered hazardous?
• Which halon is used only in fixed extinguisher installations?
• What is the most effective way to raise total alkalinity in a pool?
• What should swimmers avoid to help prevent the introduction of Giardia into pools?
• What is the most commonly used biological treatment process for the removal of organic matter from wastewater?
• What is the minimum concentration of free chlorine needed to inactivate Cryptosporidium in a pool during a diarrhea fecal incident?
• What is the specific agent responsible for Yersiniosis?
• Which types of soil are typically not suitable for sewage disposal by subsurface?
• What is the primary purpose of NIMS?
• What disease is associated with dog ticks and caused by Rickettsia rickettsii?
• What does disinfection accomplish?
• What is overland flow in wastewater management?
• What setting is most conducive to the growth of Listeria Monocytogenes?
• What is the formaldehyde indoor air exposure guideline?
• Which of the following is a characteristic of fresh water habitats relevant to schistosomiasis spread?
• In which form do coliform bacteria indicate their presence during the fecal coliform test?
• What disease is also known as woolsorter disease?
• What disease is caused by the Muerto Canyon Virus?
• How long can a ham sandwich be safely left at room temperature?
• What are communicable diseases?
• Which symptom is NOT typical of a rabid dog?
• In new community design, which factor should not be considered?
• Which is a common symptom of food-borne illness?
• The American Disabilities Act requires what type of ramp incline?
• How many eggs does a house fly typically lay within a week of mating?
• What essential activity should follow after implementing a HACCP plan?
• A Roentgen is a unit of measurement for what type of exposure?
• What are bio-safety levels designed to address?
• What does arbitration involve?
• Genetic and behavioral susceptibility is an example of what kind of factor?
• What is a vector?
• Which of the following is TRUE regarding scombroid poisoning?
• What are the Emergency Action Levels for operating nuclear power plants, in order from low to high?
• Which animals are known to be reservoirs for Trichinosis?
• What is the proper calcium hardness level for swimming pools?
• What defines a community water system?
• What is the requirement for receiving hot food?
• What is the primary role of a vector in the transmission of diseases?
• In which of the following conditions is difficulty in respiration a symptom?
• What is CHEMTREC?
• What percentage of re-circulated air should consist of clean air according to good indoor air quality practices?
• What is a recommended method to control rat populations in populated areas?
• What material effectively blocks alpha particulates?
• What is one characteristic of Category C bio-terrorism agents?
• What is the typical incubation period for Campylobacter Enteritis?
• What is one of the main purposes of the Clean Air Act?
• Which waste category includes flammable and explosive substances?
• Which of the following is NOT a symptom of Giardiasis?
• Which demographic is most at risk for developing Typhoid Fever?
• At what temperature should eggs be stored?
• What is the estimated incubation period for Listeriosis?
• Which cockroach species is most common in the United States?
• How can Tularemia be contracted by humans?
• Which symptom is more likely associated with Staphylococcus Food Poisoning?
• What does HAZWOPER stand for?
• What is the incubation period for Rocky Mountain spotted fever?
• Schistosomiasis is primarily endemic to which regions?
• What type of organism causes Cryptosporidiosis?
• What causes Water-washed Diseases?
• In swimming pool sanitation, which component is affected by the pH level of the water?
• What is the purpose of a curtain drain?
• How is noise level typically measured?
• How long can some pathogenic organisms in wastewater survive under extreme temperature conditions?
• What disease can be contracted from a hot tub or spa?
• What is the main purpose of a skimmer in a pool?
• What type of waste is allowed in a class 2 landfill?
• How is plague primarily transmitted to humans?
• What is the estimated annual prevalence of schistosomiasis cases worldwide?
• What term is used to describe medium temperature loving microorganisms?
• Which of the following is NOT one of the four major environmental acts?
• Why are pressure filters commonly used for swimming pools?
• Which of the following symptoms is typically NOT associated with Yersiniosis?
• What is the primary focus of the monitoring procedures step in HACCP?
• What is the maximum allowable temperature for spas?
• Which document helps first responders make decisions at an accident scene?
• What is the level of radon in which the EPA states to take action?
• What is the incubation period for Yersiniosis?
• Which of the following waterborne diseases still occur in developed countries?
• Which agencies regulate the release of genetically engineered materials into the environment?
• What type of particles does radon emit?
• Which tests are typically used to check for allergens?
• What is the purpose of ensuring proper food temperatures?
• What item typically does not need to be discarded after a flood?
• Which reservoirs are associated with cholera?
• What diseases can be potentially spread by house flies?
• Which animal is NOT typically considered a reservoir for rabies?
• What typical symptom occurs first in Clostridium perfringens food poisoning?
• What is the purpose of a radon measurement device?
• Which of the following diseases was NOT prevalent before the 20th century?
• Through what organism is schistosomiasis primarily spread?
• What is one main reason for employing radon mitigation systems in homes?
• Which organism is a vector for West Nile Virus?
• At what temperature range should pool test kits be stored?
• Under which jurisdiction does the FDA operate?
• Where is it inappropriate to study air flow or positive pressure in a hospital?
• How is the freshness of dairy products typically assessed?
• What is the specific agent for Typhoid Fever?
• What does the term nosocomial refer to?
• What defines toxic hazardous waste?
• Which type of well is generally more dependable and less prone to contamination?
• What does prevalence measure in a population?
• Who determines the noise level at a gathering?
• What type of bacteria can cockroaches carry that is harmful to humans?
• Which sanitizer is most effective at killing viruses?
• What is the definition of thermophilic microorganisms?
• Nearly 40 percent of the world's population is at risk of contracting which disease, with over 500 million cases estimated annually?
• How many steps are outlined for maintaining a healthy home?
• What is the specific agent responsible for Trichinosis?
• Which of the following materials drained from the crankcase is most harmful to the environment?
• What food preparation practice is generally associated with the risk of salmonellosis?
• What does FEMA stand for?
• What is characteristic of a transient non-community water system?
• What material often surrounds bio-films and helps bacteria adhere to surfaces?
• How much kerosene is recommended to be added to control mosquitoes in a pond?
• What is a common consequence of failing to use appropriate back-flow prevention?
• What can be a source of Scombroid Fish Poisoning?
• What does herd immunity refer to?
• What was the maximum contaminant level (MCL) for arsenic in drinking water lowered to by the EPA in 2001?
• How is ozone formed?
• What factor increases the risk of malaria transmission in urban areas?
• What quantity of household bleach is recommended to treat 1,000 gallons of bacterially contaminated water?
• Which animal is commonly associated with carrying rabies?
• What is the receiving temperature for raw shellfish and eggs?
• What are some potential public health impacts of chronic diseases?
• Why is maintaining a proper pH level crucial in pool management?
• What is halon 1211 used for?
• What animal is most commonly associated with transmitting Salmonella?
• What describes a bio-safety level 1?
• What substance does radon decay to after emitting alpha particles?
• Yersiniosis can be linked to which of the following reservoirs?
• What is hypochlorous acid in the context of swimming pool sanitation?
• Which of the following is the most active of the chlorine sanitizers?
• Which of the following best defines hazardous waste?
• Which agent is defined as one that destroys or eliminates all forms of microbial life?
• What defines chronic carriers in public health?
• Which of the following are examples of mesophilic microorganisms?
• Which method is used in sterilization to eliminate all disease-causing organisms?
• Which of the following birds can be a source of Psittacosis?
• For how long should the free chlorine level and pH be maintained after a fecal incident in a pool?
• Which of the following is NOT one of the six barriers in a multiple barrier plan for water treatment?
• What is the minimum wash water temperature and duration for hospital laundry?
• What is the typical detention time for facultative ponds?
• Which process significantly reduces solids and phosphate concentration in wastewater treatment?
• What are the symptoms of Typhoid Fever?
• What defines a food-borne outbreak?
• What range of temperatures do mesophilic microorganisms typically thrive in?
• What term describes a young lake?
• What characterizes an epidemic?
• Which type of water treatment is generally NOT recommended for drinking water?
• Which of the following best describes a vector?
• What is the purpose of the soil percolation test?
• Waterborne diseases in the U.S. are more frequently associated with which type of water systems?
• Excessive condensation, corrosion, and mildew are likely to occur when relative humidity exceeds which percentage?
• What role does oxygen play in aquatic systems?
• Why are vegetables blanched before freezing?
• Which common indoor pollutant can be derived from combustion processes?
• What is a problem associated with vacuum cleaners in a hospital?
• What occurs during biological transmission of a disease?
• What is the most plentiful form of available water?
• How is the turnover rate for a pool calculated?
• What results from high pool alkalinity in terms of chemical balance?
• Which bacterium is primarily responsible for Yersiniosis?
• Which methods are considered forms of secondary treatment for wastewater?
• What concentration of free chlorine is required to inactivate Giardia in a pool if fecal incident involves formed stool?
• Which of the following is a common reservoir for Staphylococcus food poisoning?
• Which substance should be used to lower the pH in a pool?
• Which water testing indicator would be used to assess free chlorine levels?
• What type of waste do class 4 landfills primarily handle?
• Which of the following is an example of a chronic disease?
• What are psychotropic bacteria?
• What disease is transmitted by the bite of infected tsetse flies, with its reservoirs including humans, wild game, and cattle?
• After contacting elected officials for community outreach, who should be the next point of contact?
• Who is most likely to be affected by Cryptosporidiosis?
• What is the main type of bacteria found in approximately five to ten percent of raw bovine milk?
• Which of the following diseases is associated with a bio-safety level 3 agent?
• What should the distance from the end of a waste pipe above the rim be based on?
• What is the maximum allowable level of combined chlorine in swimming pools?
• What animal is known to carry hantavirus?
• Which food-borne illness is known to be a frequent cause of bacterial diarrhea?
• Which bio-terrorism category includes agents that require improved awareness and surveillance measures?
• Which of the following is NOT a symptom of malaria?
• How many inches of suitable soil are required between an absorption field trench and the groundwater table?
• Which of the following are symptoms of Bacillus Cereus (Emetic Type)?
• How many times the food that rats consume do they destroy or render unusable globally?
• Which of the following represents the least to most levels of respiratory protection?
• How many sections are included in the Emergency Response Guidelines issued by DOT?
• Which of the following describes a significant health risk of poor indoor air quality?
• How much space is required in a disaster shelter to accommodate one person?
• Is it estimated that there is more than four times more groundwater available for drinking and domestic purposes than surface water?
• Which of the following is NOT a characteristic of bio-films?
• What is a goal of water treatment practices in ensuring consumer safety?
• Which agency commonly regulates public health in relation to landfill operations?
• Which type of waste is typically accepted in a class 1 landfill?
• What is a common symptom of Scombroid Fish Poisoning?
• What is the best container for storing hazardous materials?
• What type of agent causes Clostridium perfringens food poisoning?
• What term is used to describe wastewater generated from sources other than toilets?
• What are the two major groups of fungi?
• What does black water refer to?
• What kind of diarrheal symptoms is often associated with Bacillus Cereus Food poisoning?
• What type of organism causes Listeriosis?
• Which types of diseases are facilitated by insect vectors that breed in water?
• How long can Cryptosporidium oocysts survive in surface water at 4°C?
• What defines aerobic bacteria?
• What is the BOD removal efficiency for facultative ponds?
• What are common symptoms of Cryptosporidiosis?
• What does sous-vide refer to?
• Which insect is known to spread diseases and is also considered a nuisance?
• What field test is recommended for measuring chlorine in water?
• Which of the following foods is NOT commonly associated with mercury poisoning?
• What is a definitive diagnosis for Bacillus Cereus Food poisoning?
• At what level can formaldehyde cause symptoms?
• Botulism is primarily associated with what type of agent?
• What is the main function of a semipermeable membrane in reverse osmosis?
• What defines eutrophication?
• Levels of nitrate above what concentration are known to cause blue baby syndrome?
• What is the minimum height above bedrock that landfill must be located?
• How is chemical oxygen demand (COD) defined?
• What is the purpose of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)?
• Nosocomial infections are more prevalent in which type of hospitals?
• What type of agent kills infectious bacteria and fungi but does not kill bacterial spores?
• What type of procedures does the TCLP analysis involve?
• What is a critical component of the Emergency Response Guidelines?
• In comparison to dug wells, what is a key advantage of drilled wells?
• To prevent plumbing backflow, what is the recommended distance for a water inlet or faucet above the flood-level rim?
• Which of the following is a common reservoir for rabies?
• Which type of Bacillus Cereus food poisoning is associated with vomiting?
• Which indicator is used to check the pH level in water?
• What is the specific agent responsible for botulism?
• What is a critical aspect of disaster preparedness according to emergency management protocols?
• What role does education play in the multiple barrier plan for water treatment?
• What are the four types of filters used for water treatment?
• What is the purpose of leachate and gas monitoring of wells?
• What device measures humidity?
• What primarily determines the depth of a landfill?
• What is the typical incubation period for plague?
• Which of the following are forms of primary treatment for wastewater?
• The first HACCP regulation mandated that what processors develop and implement HACCP systems?
• Which of the following agents is NOT associated with food poisoning?
• Does freezing food significantly reduce toxins?
• What role did the application of disinfectants play in public health?
• Blood-borne pathogens are primarily regulated by which agency?
• What does the Bill of Rights guarantee?
• What comprises the Division of the Incident Command System (ICS)?
• What is the role of the culex mosquito in public health?
• What does an embargo refer to?
• Which disease is associated with inadequate sanitation and hygiene conditions?
• What type of rodenticide is bromethalin?
• Which of the following are examples of psychotropic bacteria?
• At what depth can flies emerge from a landfill?
• What is mesothelioma?
• What harmful gas do photocopying machines emit?
• What is the potential benefit of using slow sand filters in rural areas?
• How is sedimentation defined in the context of wastewater treatment?
• What is the usual incubation period for cholera?
• What is absolute humidity?
• What is the etiologic agent responsible for plague?
• A characteristic disadvantage of bored wells is:
• Who was instrumental in controlling the cholera epidemic in London in the 19th century?
• What is the overall purpose of bar screens, comminutors, and grit chambers in wastewater treatment?
• Which bio-safety level involves the handling of lethal agents that may be transmitted via inhalation?
• In the context of wastewater treatment, what is irrigation?
• What identifies contact carriers?
• A negative phosphate test is used to verify?
• What should indoor humidity generally be maintained at?
• Which of the following is NOT a level of the sewage treatment process?
• How many people is the world population increasing by each year?
• A chlorinator should have the capacity to provide at least how much free chlorine residual?
• What type of waste management reduces the volume of waste while providing energy through combustion?
• What is the purpose of the Public Information Officer in the Incident Command System?
• Where does lead accumulate in the human body?
• Which aspect is critical for the design of hazardous waste landfills to prevent leaching?
• What is the average incubation period for Giardiasis?
• What is the specific genus responsible for shigellosis?
• What is the risk associated with time/temperature control for safety foods?
• How does Staphylococcus aureus toxin remain stable during food preparation?
• Soda ash is a common name for which chemical?
• What is the recommended cooking temperature for shell eggs to prevent salmonella?
• What distinguishes primary drinking water from secondary drinking water?
• Which of the following is a known reservoir of Listeriosis?
• What is the minimum detention time for a large septic tank?
• What equals combined chlorine when subtracted from total chlorine?
• What is the primary concern with gray water disposal?
• What characterizes a toxin-mediated infection?
• Which of the following is an example of Environmental Public Health Surveillance?
• After a fecal incident, what level of free chlorine should be maintained in a pool?
• Which of the following is a characteristic of hazardous waste?
• What typically causes ergonomic diseases?
• What is an effective way to prevent electrical accidents near water?
• What is the incubation period for Bacillus Cereus (Emetic Type)?
• Which of the following pathogens is NOT one of the five most commonly found enteric pathogens in daycare outbreaks?
• What is NOT required by a bio-safety level protocol?
• How much daily cover is required on a landfill at the end of the day?
• What is an indication of temperature abuse in frozen food?
• Which disease caused by nematode worms is transmitted by the bite of a mosquito?
• What is the required free chlorine residual level in spa pools?
• What type of filter is generally considered least effective in a swimming pool?
• Which of the following is an important characteristic of halon fire extinguishers?
• What is the most effective method to prevent Rabies transmission?
• What symptom is commonly associated with severe malaria infection?
• Which type of bacteria grows only in the absence of free dissolved oxygen?
• What is the recommended contact time for chlorine treatment at maximum flow?
• Which population is most at risk of contracting cholera?
• What does IPM stand for in pest management?
• What is the purpose of litigation?
• What is the primary gas released by burning fossil fuels that contributes to air pollution?
• What type of organism is Yersiniosis associated with?
• Which disease is characterized by its transmission through rodent bites?
• What is the main concern when using a humidifier in a newborn area?
• What is an example of agent factors in disease transmission?
• What bacterium is associated with inhalation of contaminated water aerosols?
• Karst areas are formed primarily by the movement of groundwater through which type of rock?
• What is the typical BOD removal efficiency for activated sludge systems?
• What was John Snow's contribution to public health during the cholera epidemics?
• What standards should underground storage tanks meet?
• What is the importance of regular radon testing?
• What is necessary to expedite response efforts in a disaster situation?
• Which animal group is characterized as invertebrates and includes snails?
• What is a critical step in preventing disease transmission in daycare centers?
• What should be the internal temperature for holding cold foods?
• What processes are included in infection control for tattoo parlors?
• What does the Toxic Substances Control Act (TSCA) regulate?
• Which waste management option is viewed as the most positively perceived and doable?
• What serious risk can occur if sous-vide cooking is not properly done?
• What term describes an agent that increases the risk of cancer?
• What purpose does the DOT emergency response guidebook serve?
• How many steps are involved in keeping a healthy home?
• What is a common reservoir for amebiasis?
• What percentage of food-borne outbreaks are attributed to bacterial pathogens?
• Which of the following increases if cyanuric acid is not present in outdoor pools?
• What is the recommended alkalinity level in a swimming pool?
• What serves as the reservoir for shigellosis?
• Which type of mercury is most concerning for human consumption due to its toxicity?
• What does integrated pest management involve?
• Which organism is considered the primary reservoir for malaria?
• What is a significant concern associated with an outbreak?
• How is Rabies primarily transmitted?
• Where is the most effective location to place a radon detector in a school?
• What is the specific agent for the emetic type of Bacillus Cereus?
• How is cheese typically preserved?
• What is the primary method of preventing malaria?
• Which type of mosquito is primarily responsible for malaria transmission?
• What does land application in wastewater treatment involve?
• Under the 1986 Safe Drinking Water Act amendments, what is defined as a well head area?
• What is the primary focus of the BISSC?
• Which step in a HACCP plan involves observing and measuring to ensure critical limits are met?
• Bacillus Cereus food poisoning (Diarrheal Type) is primarily caused by?
• In what year was lead paint banned in the United States?
• What type of products are subject to seizure by the FDA during interstate commerce?
• What is the recommended chlorine residual in swimming pools?
• Which organizations should be contacted if a pest species may be protected?
• What is the preferred water activity level for molds?
• Secondary drinking water standards are primarily concerned with what aspect?
• What characterizes dug wells?
• What characteristic of fresh meat can help determine its quality?
• For optimal sanitation, how long should pool equipment run each day?
• How frequently should septic tanks serving commercial operations be inspected?
• What are the two types of pathogenic microorganisms that grow and are carried by food?
• What is a reservoir in terms of infectious agents?
• What is an example of environmental factors in disease transmission?
• What should be the approach towards items that come into contact with blood in tattoo parlors?
• What is the purpose of verification procedures in a HACCP plan?
• Which ticks are responsible for spreading Rocky Mountain Spotted Fever?
• What percentage of waste generated by hospitals is considered infectious waste?
• What is the recommended pH range for swimming pools?
• What type of toxins are associated with Scombroid Fish Poisoning?
• Which of the following is included in hazardous waste?
• Which of the following has been banned by the EPA for commercial use?
• What percentage of water should be removed by the skimmer or scum gutter in most pools?
• What is the specific agent responsible for Giardiasis?
• What is routinely monitored in waters suitable for drinking and shellfish rearing?
• What commonly causes diarrhea in daycare settings?
• What health risk is associated with improper sanitation practices in food handling?
• Which disease is known to be eradicated by humans?
• What is the etiologic agent responsible for causing malaria?
• What are typical design standards for hazardous waste landfills?
• What blood lead level is considered to cause harmful effects?
• What is the purpose of pasteurization?
• What is a seizure order?
• What is the primary function of activated carbon filters in water treatment?
• What is the primary reservoir for Giardiasis?
• What practice can effectively reduce the volume of waste in landfills?
• What does BISSC stand for?
• What method can help reduce radon entry into a home?
• What is an appropriate action after identifying a pest source?
• What term is used for arthropods involved in transmitting diseases?
• Which of the following describes a teratogen?
• Which of the following is a common preventive measure for Typhoid Fever?
• At what radon level does the EPA recommend taking action?
• What type of air pollution is primarily linked to vehicle emissions?
• What is the ecological agent of cyclosporiasis?
• What is the consequence of increasing BOD in water bodies?
• Which of the following is not a function of septic tanks?
• What is the receiving temperature for most PHF/TCS foods?
• What type of soil is considered ideal for a landfill?
• What is a primary concern regarding household hazardous waste?
• What type of pathogen causes Campylobacter Enteritis?
• Where is the ideal location to place a radon detector in a school?
• To raise the pH in a pool, which substance should be added?
• What are Time/Temperature Control for Safety foods (TCS)?
• What is the purpose of a sanitizer?
• What is the common breeding behavior of rats in terms of litter size?
• What are the three general guidelines for controlling exposure to ionizing radiation?
• Which of the following is an example of a Category B bio-terrorism agent?
• The cockroach commonly referred to as a water bug is?
• Which of the following are common symptoms of shigellosis?
• Who are convalescent carriers?
• By what percentage is the world population growing each year?
• What are regulations or rules?
• In the event of a nuclear power plant emergency, what is the first Emergency Action Level?
• Which of the following is a classic sign of plague infection?
• What is the Clean Air Act of 1970?
• What is a key characteristic of Tularemia?
• The USDA has jurisdiction over which areas of food processing?
• Which of the following describes bromethalin's effects?
• Which is the specific agent of amebiasis?
• What mechanism causes the symptoms seen in Scombroid Fish Poisoning?
• From where is typhoid most likely to originate when sourced from untreated water?
• What symptom is associated with amebiasis?
• What is the maximum allowable time hazardous waste can be accumulated on site for small quantity generators without a RCRA permit?
• At what temperature is milk considered pasteurized?
• What distinguishes pressure filters from other filter types?
• Which of the following is a reservoir for Cryptosporidiosis?
• What is the safe cooking temperature for pork?
• What is one of the three factors that make developing countries particularly susceptible to illnesses?
• What is defined as plain sedimentation in water treatment?
• What is the first step to take before addressing a pest problem?
• Which of the following symptoms would NOT typically be associated with Campylobacter Enteritis?
• What is the first step to take if a pool has diarrheal contamination?
• What pH range does staphylococcus thrive in?
• What defines a parasite?
• What is the average incubation period for Plasmodium falciparum malaria?
• What is typically the source of infection often from non-human animals?
• What is the primary purpose of sanitization?
• What is the purpose of using sodium-thiosulfate treated bottles for collecting chlorinated water samples?
• What is a common indicator of food spoilage?
• What is a key aspect of a rat's life cycle?
• In which areas does 77 percent of the population reside?
• How often should a swimming pool ideally turnover?
• What form does the transmission of amebiasis primarily take?
• What is the scientific name for the sewer rat?
• Which of the following environments is likely to harbor Clostridium botulinum?
• How does disinfection compare to sterilization?
• What is characterized as a bio-safety level 4 agent?
• What role does calcium hypochlorite play in pool chemistry?
• What is the carbon monoxide exposure limit for one hour according to U.S National Ambient Air Quality Standards?
• Which act focuses on waste management techniques for hazardous substances?
• Which food preparation method is most associated with E-coli 0157:H7 contamination?
• What is a key EPA recommendation for state regulatory programs related to public water supply?
• What is the minimum distance a septic tank absorption field should be from any well?
• What serves as the reservoir for Scombroid Fish Poisoning?
• What are the peak breeding seasons for rats in temperate zones?
• Which organization is responsible for managing radioactive waste storage?
• What action must be communicated and trained to employees if critical limits are not met in a HACCP plan?
• For what type of communities are slow sand filters typically recommended?
• Which of the following is a symptom of Lyme disease?
• What is a primary factor that can lead to Bacillus Cereus food poisoning?
• What is a common cause of trichinosis in food preparation?
• What food item has been associated with cyclosporiasis outbreaks?
• What does the term "wastewater" generally include?
• How does an increase in pH affect the disinfection power of free chlorine?
• Which food product does not require refrigeration below 41°F?
• What is a common use for pressure filters?
• How long should water be boiled to effectively kill most pathogens in polluted water?
• What is the BOD removal efficiency for RBDs?
• Which of the following is an example of an anticoagulant rodenticide?
• What is the main health threat associated with the culex mosquito?
• What type of particles does radon emit?
• Which nutrients are primarily associated with eutrophication?
• What is the typical incubation period for Scombroid Fish Poisoning?
• What is the recommended minimum capacity for a private home well in gallons per hour?
• How high above the roof pitch must a chimney extend to effectively prevent downdraft?
• What is relative humidity?
• Which chemical is most commonly used to destroy disease-causing organisms in drinking water?
• What is Lyme disease caused by?
• What is the specific agent of Cryptosporidiosis?
• What is the specific agent of Listeriosis?
• What causes acid rain?
• What are common symptoms associated with a rabid dog?
• What is the minimum recommended time for employees to wash their hands and arms up to the elbow?
• What does the U.S National Ambient Air Quality Standards recommend as the limit of carbon monoxide exposure for 8 hours?
• What should be considered to prevent the spread of diseases carried by pests?
• What is a pathogen?
• What term is used to describe illnesses arising from the transmission of infectious agents from infected hosts to susceptible individuals?
• What is the most common type of bedbug?
• What is the main cause of waterborne diseases?
• Which fish are most commonly associated with Scombroid Fish Poisoning?
• What are the most common chemicals used in the disinfection of drinking water?
• What effect does adding sodium Bisulfate have on pool water?
• What is the definition of due process in environmental health practice?
• What is the recommended level of free chlorine in pool water for safe swimming?
• In the context of incident management, what does NIMS emphasize?
• What are rotating biological contactors (RBCs)?
• Which year was the BISSC formed?
• What has significantly reduced the occurrence of traditional waterborne diseases in developed countries?
• Which of the following is NOT a type of TCS food?
• A whole blood mercury level above what threshold may pose a poisoning hazard?
• What is the term for waste eliminated from the human body?
• Which characteristic describes Alpha particles?
• Which of the following describes diarrhea caused by Staphylococcus food poisoning?
• Which cockroach species is most commonly found in commercial kitchens?
• What is the specific agent responsible for Staphylococcus food poisoning?
• What is the recommended level of cyanuric acid in an outdoor swimming pool?
• What does biochemical oxygen demand (BOD) measure?
• What is the valley or ravine method in landfill operations?
• At what carbon monoxide concentration level can unconsciousness occur?
• What is the agent that causes West Nile Virus?
• Which of the following best describes food-borne illness?
• What is identified in the second step of a HACCP plan?
• Which viral disease is also known as break-bone fever and is transmitted by Aedes aegypti and A. albopictus?
• What defines non-point pollution?
• Which of the following is NOT a core health problem in developing countries?
• What is a typical depth range for drilled wells?
• What are the symptoms of Bacillus Cereus Food poisoning (Diarrheal Type)?
• What does "Prima Facie" refer to in legal terms?
• What type of pathogen is responsible for Giardiasis?
• What type of organism causes amebiasis?
• What is the primary use of diazinon?
• Which of the following foods are examples of TCS foods?
• What issue does low alkalinity in pools cause?
• At what pH level does mold thrive best?
• What uses trichloroethylene and tetrachloroethylene?
• What role does the Safety Officer play during an incident?
• How is rabies typically transmitted to humans?
• What is a recommended method for controlling wasps?
• What type of bacteria is commonly involved in foodborne illnesses?
• What are bio-films?
• What is the primary vector for Dengue fever?
• What is one consequence of untreated rat infestations?
• What is the main purpose of rapid sand filters?
• What is an effective method to prevent food spoilage?
• How is Typhoid fever primarily transmitted?
• Which type of waste typically does not belong in a landfill?
• What are statutes?
• What are driven and jetted wells characterized by?
• What symptom is common in patients with Trichinosis?
• What is the required distance a septic tank absorption field must be from any lake, swamp, ditch, or water course?
• What genus is responsible for transmitting malaria?
• What percentage of the population depends on groundwater for drinking and domestic purposes?
• What is a necessary but often unwanted form of waste management?
• What is the etiologic agent of rabies?
• What is the first step in a HACCP plan?
• What is the incubation period for Bacillus Cereus Food poisoning (Diarrheal Type)?
• Which best defines a critical control point in a HACCP plan?
• What does the process of desalination achieve?
• What defines an acute disease?
• What is silicosis?
• What is one goal of environmental health programs?
• Where should air filtration vents typically be placed in a hospital?
• What is a necessary feature for a drain line from an ice machine?
• Which of the following defines the growth optima for thermophilic microorganisms?
• What is the primary purpose of filters in the drinking water treatment process?
• What is the most effective way to prevent mosquito breeding?
• What is a health effect of long-term exposure to lead?
• What symptom commonly associated with Trichinosis can lead to difficulty breathing?
• What is a fomite?
• What is the specific agent of cholera?
• Who assumes the role of Incident Commander at a disaster scene?
• What is a key factor in determining bio-safety levels?
• Which bacterium was implicated in a terrorism event in 2001?
• What is the minimum laundry temperature required in hospitals for disinfecting?
• Shigellosis is classified as what type of agent?
• What is the incubation period for Cryptosporidiosis?
• A HACCP plan is not required when?
• Which agency works closely with state and local agencies during disasters?
• How tall must a chimney be above the roof pitch to prevent downdraft?
• Which of the following is an example of a reservoir?
• What is one characteristic of carbonates that allows for groundwater movement?
• What is the required depth for final landfill cover?
• Which category is NOT one of the four categories of OSHA standards?
• What causes Legionnaires' disease?
• Which bacteria is known to thrive in improperly handled food?
• What disease can fleas specifically spread to humans?
• Which statement about mercury exposure is accurate?
• What are the closure and post-closure requirements for landfills?
• How many litters can a female rat have in a year?
• What does dissolved oxygen refer to in aquatic environments?
• What type of soil test involves bored holes in a proposed system site?
• What could be a consequence of inadequate landfill cover?
• What impact does high alkalinity have in a pool?
• What is the reservoir for Bacillus Cereus (Emetic Type)?
• Which of the following is an example of a bio-safety level 4 agent?
• What is the definition of tort in legal contexts?
• What is the purpose of establishing critical limits in a HACCP plan?
• How is malaria primarily transmitted to humans?
• Which environmental condition can enhance the growth of staphylococcus?
• Which of the following pollutants is NOT a critical air pollutant?
• What type of injury does a carcinogen primarily relate to?
• What characterizes the area method in landfill construction?
• Who is exempt from RCRA regulations regarding hazardous waste?
• Which characteristic indicates fresh fish?
• Which disease is contracted through contact with infected birds or inhalation of their waste, with an incubation period of 4-15 days?
• Which organism is responsible for causing Tularemia?
• What are Waterborne Diseases primarily caused by?
• What term is used to describe infections transmitted from animals to humans?
• Which of the following is a reservoir for Clostridium perfringens food poisoning?
• What does rapid infiltration refer to in wastewater treatment?
• Which wildlife species is often a primary rabies vector in urban areas?
• Who is typically responsible for conducting a hazard analysis in a food establishment?
• What is often found in the stool of a person suffering from cholera?
• Which disease is transmitted by the bite of an infected tick, with symptoms occurring four to five days after being bitten?
• What temperature is critical for cooking chicken to ensure safety?
• What does the acronym NOISH stand for?
• What does the term 'endemic' refer to in public health?
• What factors primarily contribute to hearing loss?
• Under what conditions is the fecal coliform test incubated?
• Viral infections spread readily through drinking water and food due to what factor?
• What type of agents in bio-terrorism are considered a high-level priority for preparedness?
• What is the leading cause of death from infancy to age 55?
• Which symptom is specifically associated with Scombroid Fish Poisoning?
• What is radon?
• Which of the following best describes a common characteristic of bedbugs?
• Why is it important to hold hot foods at appropriate temperatures?
• Which of these statements about chlorination is true?
• What disease is transmitted by the bite of an infective flea (X. cheopis)?
• How long can cold foods be held at 41 F or less?
• What is the liquid depth range for facultative ponds?
• What defines bored wells?
• What is the specific agent responsible for Campylobacter Enteritis?
• What type of transmission involves the passive carrying of disease organisms?
• Which food handling practice is the most common cause of shigellosis?
• What is the etiologic agent for Bubonic plague?
• What is the main reason to avoid refreezing thawed food?
• What chemical is added to pools to increase oxidation?
• Which of the following steps is third in a HACCP plan?
• What visual sign indicates the quality of stored vegetables before freezing?
• Which of the following is part of the epidemiologic triangle?
• Which of the following describes a non-transient non-community water system?
• What is the purpose of using autoclaves in tattoo parlors?
• What environmental factor does NOT contribute to malaria transmission?
• Water-based Diseases are characterized by infections resulting from what?
• What is a major risk associated with lead exposure?
• When collecting a water sample for bacteriological examination, what type of container should be used?
• What is the source of scombroid poisoning?
• What does the term "water activity" refer to in the context of mold growth?
• What environmental factor is associated with plague transmission?
• What should be done if critical limits are not met according to HACCP guidelines?
• Under the 1976 RCRA regulation, small quantity generators are classified based on how much hazardous waste they generate per month?
• After pasteurization, milk must be cooled to what maximum temperature?
• What percentage of the global content of water is constituted by fresh water?
• Which test kit is recommended for testing pool chlorine levels?
• What is the nature of the onset of symptoms for amebiasis?
• What temperature denotes ultra-pasteurized milk?
• What does the Resource Conservation and Recovery Act (RCRA) regulate?
• What material should above-ground storage tanks be made from?
• Which of the following describes tertiary treatment for wastewater?
• What is Clostridium perfringens?
• What characterizes an allergen?
• At what pH level can molds survive?
• What is a key feature of slow sand filters?
• What are common symptoms associated with Campylobacter Enteritis?
• What does DOT stand for in environmental health context?
• What do we mean by food intoxication?
• What does the trench method refer to in landfill operations?
• Which organization is primarily responsible for major disaster management in the U.S.?
• What does the Ringlemann chart measure?
• Which process is typically used to remove salt from seawater?
• What does mottled brown and red soil typically indicate?
• Bio-safety level 3 mainly involves agents that can cause what type of disease?
• Which pathogens are among the top five causes of domestically acquired food-borne illnesses?
• What is the typical BOD removal efficiency for trickling filters?
• What document does the DOT issue for emergency responders?
• What is the maximum holding time for food under public health control in the temperature danger zone?
• How frequently should a spa turnover?
• What is the specific agent for Bacillus Cereus Food poisoning (Diarrheal Type)?
• Which of the following best represents a critical control point (CCP)?
• Why are rapid sand filters generally not recommended for all situations?
• What do class 1 landfills primarily accept?
• What defines a chronic disease?
• What must be done to ensure a proper indication of water quality during sample testing?
• What is a possible consequence of cholera if untreated?
• Which agency oversees both solid and hazardous waste management?
• What does the term 'universal precautions' refer to?
• At what level of carbon monoxide exposure can headaches begin to occur?
• What does the acronym HACCP represent in food safety?
• What characterizes the activated sludge process?
• What is the recommended classroom space per student?
• What is the water treatment step that effectively removes 99 percent of viruses?
• What is a breathing zone air sampler?
• What is the required process for cooling TCS foods?
• What is the maximum storage temperature for eggs?
• What organization first developed HACCP?
• What does it mean for a respirator to be positive pressure?
• Who is responsible for disposing of household hazardous waste?
• Which organization is responsible for addressing bio-terrorism in the United States?
• Which of the following is considered the largest cockroach?
• Which of these is NOT a step in the HACCP process?
• Before 1940, most waterborne disease fatalities were attributed to which illness?
• What is the best method to protect underground storage tanks from leaking?
• What temperature range is referred to as the "danger zone" for food safety?
• How often does a septic tank for a private home typically require cleaning?
• What constitutes a public health nuisance?
• What does the term "prevailing winds" refer to?
• How many steps are generally included in a HACCP plan?
• Which factor is LEAST likely to influence the emergence of pests in landfills?
• Which of the following is a sign of old fish?
• What is the maximum diameter for drilled wells?
• Which of the following best describes the role of a reservoir in disease transmission?
• Which agency is known for its role in managing and coordinating disaster responses at the federal level?
• Which sand filter type typically operates at higher flow rates?
• What might a listless rabid dog exhibit?
• What is the most abundant species of rat found in the U.S.?
• Which factor is least important in reducing sewage gas?
• What is the typical flow rate for high rate sand filters?
• How many types of sand filters are there for pools?
• What is Psittacosis better known as?
• What is the main focus of legislation such as HAZWOPER?
• What is the typical incubation period for botulism?
• Which waste is suitable for disposal in a class 3 landfill?
• What symptom is typically NOT associated with Bacillus Cereus food poisoning?
• What is a host in the context of infectious agents?
• Who enacts ordinances?
• Which of the following is NOT a characteristic of hazardous waste?
• Which of the following agents is associated with bio-safety level 2?
• What is a common problem associated with dug wells?
• What does the term "chlorine residual" refer to in water treatment?
• What is a carrier in relation to infectious diseases?
• Which of the following is NOT a symptom of Scombroid Fish Poisoning?
• Which of the following indicates unsatisfactory chlorine levels?
• What type of tank is used in a pressure filter?
• What is the correct order for food storage in a refrigerator?
• What is a primary risk factor for mercury exposure in the population?
• What is the average incubation period for Staphylococcus food poisoning?
• What type of breathing protection is required if oxygen levels in the air are at 15 percent?
• Which waste management option effectively reduces waste volume by nine-fold?
• What is the consequence of having a combined chlorine level above the allowable limit?
• What is the primary concern that requires the inactivation of crypto in pools?
• What is the harmful effect level of lead according to environmental health standards?
• What are the daughter products of radon decay?
• Which characteristic of water makes it more corrosive?
• What is the term for the amount of chlorine required to oxidize ammonia in water?
• Which of the following is NOT a method of reducing radon exposure?
• What indicates a critical exposure level of carbon monoxide?
• Which rodenticide is generally used for controlling rat populations?
• What symbol is commonly found on a USDA meat label?
• What are some common symptoms of cholera?
• What critical discovery did Robert Koch make regarding cholera?
• Hantavirus is predominantly associated with which animal?
• What are the microorganisms that are most commonly associated with food?
• What is the most reliable method to check radon levels in a home?
• What is the minimum free chlorine residual that should be maintained at distant points in the distribution system?
• What does SDS stand for in the context of chemical safety?
• Which of the following is commonly associated with Bacillus Cereus Food poisoning?
• What effect does chlorine have on silver?
• What percentage of sewage is usually removed by BOD treatment?
• The alkalinity of water passing through distribution systems made of iron should be in what range to prevent corrosion?
• According to the latest data, how many pounds of waste does an average person in the U.S. generate per day?
• How many young can a female rat produce per litter?
• Which waterborne disease can be prevented through vaccinations?
• Which of the following is a component of source water protection?
• What disease has its reservoirs in rabbits, muskrats, and other wild animals, and can be transmitted through undercooked rabbit meat?
• Which of the following are considered critical air pollutants?
• Which of the following is NOT a type of sand filter used in pools?
• If a septic tank is used with a garbage disposal unit, how much should its capacity be increased?
• Which bacterium is the most common cause of diarrhea?
• What are typical symptoms of Staphylococcus food poisoning?
• What is the reservoir for Typhoid Fever?
• Which type of well is usually not a dependable source of water supply?
• Which insect is diazinon most commonly used to control?
• Which of the following statements about hospital laundry practices is true?
• What are some common symptoms of Listeriosis?
• What do we call microorganisms that require free oxygen to survive?
• What is the recommended amount of water per person per day in a disaster shelter?
• Who holds the highest ranking position at the scene of a disaster?
• What is the specific agent responsible for Scombroid Fish Poisoning?
• What is the seventh step in a HACCP plan?
• Which agency is responsible for regulating shelled mollusks in the United States?
• What does the term 'carriers' refer to in the context of infectious diseases?
• At what temperature is chlorine most effective in water sanitation?
• For effective refrigeration, what should be provided around each product?
• Which of the following is NOT a symptom of Trichinosis?
• What is the minimum holding temperature for hot foods?
• Which of the following are daughter products of radon?
• During normal operations, what percent of water is typically removed by the drain in swimming pools?
• What type of health issue is Staphylococcus Food Poisoning categorized as?
• What condition involves fly infestation with larvae and is commonly known as screwworm?
• What is the reservoir for Bacillus Cereus Food poisoning (Diarrheal Type)?
• What is the primary concern regarding the health effects of lead exposure?
• What are the five classifications of soil?
• What is the incubation period for Typhoid Fever?
• What is mediation?
• What symptom is NOT typically associated with Yersiniosis?
• What is the form of mercury primarily found in fish?
• What does surveillance of a public water supply typically include?
• Why is copper sulfate crystals recommended for some septic tank systems?
• In HACCP, what is an example of a critical limit for cooking poultry?
• What is Myiasis?
• Which microorganisms are classified as thermophilic?
• What is the usual incubation period for Trichinosis?
• What type of pest management approach does IPM emphasize?
• What is the typical incubation period for shigellosis?
• What is the ideal total alkalinity level in pool water?
• Which two types of wells are characterized by small yields and vulnerability to pollution and drought?
• What role do snails play in the transmission of liver flukes?
• What is food infection?
• What factor contributes to the corrosiveness of water aside from pH levels?
• What does the assigned protection factor (APF) represent?
• In public health, which concept entails examination of host, agent, and environment interactions?
• What is often referred to as pH bounce in pool chemistry?