REHS Practice Test 2 Questions With 100% Correct Answers 2024, Exams of Advanced Education

Download REHS Practice Test 2 Questions With 100% Correct Answers 2024 and more Exams Advanced Education in PDF only on Docsity! REHS Practice Test 2 Questions With 100% Correct Answers 2024 What would you expect from a swimming pool with a high pH reading? a. cloudiness, scaling, and irritation to eyes b. cloudiness, corroding, and irritation to the eyes - Correct Answer-a. cloudiness, scaling, and irritation to eyes Which chemical will raise pH? a. Sodium Carbonate b. Calcium Carbonate c. Sodium Bicarbonate d. Sodium Bisulphate d. Ozone - Correct Answer-a. Sodium Carbonate - Soda Ash How would a swimmer most likely contract Legionella pneumophilia from a pool? a. Ingestion of pool water b. Direct contact with pool water c. Inhalation of water vapor d. Puncture from damaged equipment - Correct Answer-c. Inhalation of water vapor Swimming pool water clarity is measured in NTUs, it is recommended that a level of 0.5 NTU: a. Shall be maintained b. Shall not be exceeded c. Is the minimum level d. Is the maximum level - Correct Answer-b. Shall not be exceeded What is the microbe entirely responsible for skin inspection in a whirlpool? a. Pseudomonas aeruginosa b. Legionella pneumophilia c. Cryptosporidium c. with a variety of filter types to provide filtering options for the operator d. to fit the expected number of swimmers - Correct Answer- d. to fit the expected number of swimmers The fresh water supply line to the pool must... a. Have a direct solid connection to a public water line b. Fill to the pool through an approved air gap c. Have an approved pump hooked to the public water supply line to suck the water to the pool for fast fills d. None of the above - Correct Answer-b. Fill to the pool through an approved air gap What chemical will lower pH? a. Sodium Bisulphate b. Sodium Bicarbonate c. Hydrochloric Acid d. a and b e. a and c - Correct Answer-e. a and c In large pools with outlets more than 5 feet from the end wall, pool inlets should be located... a. Every 5 feet b. Every 10 feet c. Every 20 feet d. Every 30 feet - Correct Answer-c. Every 20 feet Pool inlets should be located a minimum of 10 inches to 15 inches below the water line to... a. Ensure good mixing b. Prevent clogging c. Prevent loss of disinfectant d. ensure mixing of pH additives poured into pool - Correct Answer-c. Prevent loss of disinfectant The main drain should have a grate that is ___________ the area of the discharge pipe to prevent dangerous suction effects. a. Two times b. Four times c. Five times d. Six times - Correct Answer-b. Four times When chlorine is added to water... a. One acid is formed b. Two acids are formed c. HCL is considered the primary product d. Ozone is produced in large quanitites - Correct Answer-a. One acid is formed Hypochlorous acid + Hydrochlorite ion The connection between the pool drain and the sanitary sewer must... a. Be solid copper no less than 3 inches in diameter b. Be solid cast iron or NSF approved PVC b. 60-80 ppm c. 70-90 ppm - Correct Answer-a. 30-50 ppm When there is a diarrheal event in a pool, the chlorine must be raised to what and for how long? a. 3 ppm; 19 hours b. 7 ppm; 120 hours c. 10 ppm; 72 hours d. 20 ppm; 12.75 hours - Correct Answer-d. 20 ppm; 12.75 hours What are the ideal levels for chlorine in a pool? a. 1.0-3.0 ppm b. 3.0-5.0 ppm c. 5.0-8.0 ppm - Correct Answer-a. 1.0-3.0 ppm At what temperature does chlorine work best at? a. 68°F b. 70°F c. 72°F d. 74°F - Correct Answer-a. 68°F What is the ideal pH in a pool? a. 7.0-7.8 b. 7.0-8.0 c. 7.2-7.8 d. 7.2-8.0 - Correct Answer-c. 7.2-7.8 Which chemical will lower pH in a pool? a. Ozone b. Dichlor c. Trichlor d. Calcium Hypochlorite - Correct Answer-c. Trichlor Which is the slowest pool filter? a. High Rate Sand Filter b. Rapid Rate Sand Filter c. DE d. Cartridge - Correct Answer-d. Cartridge 0.375 What is the best for a leaking septic tank? a. Replace every 5 years b. Cover with metal lining c. Inject seams with epoxy resin - Correct Answer-c. Inject seams with epoxy resin Common causes of failure of septic tank seepage field systems include improper sizing, no-suitable soil, non-servicing, and ________. a. Insufficient nutrients in the tank b. Excessive use of laundry detergents and cleaning c. Leaking fixtures a. Annually b. Biannually c. Every 3 years d. Every 5 years - Correct Answer-b Biannually How often should a septic tank be pumped? a. Annually b. Every 3-5 years c. Whenever the alarm sounds - Correct Answer-b. Every 3-5 years What is a possible consequence if a septic tank is found to be sitting in a high water table? a. It may need to be pumped more often b. It may float or tilt c. It may need to be replaced - Correct Answer-b. It may float or tilt A newly installed septic tank may be used within.... a. Immediately b. 12 hours c. 24 hours d. 6 months - Correct Answer-a. Immediately Sludge can be disposed of in all of the following ways except: a. Composting b. Landfill c. Ocean Dumping d. Incineration - Correct Answer-c. Ocean Dumping Groundwater samples are taken all of the following ways except: a. Bored b. Dug c. Cores d. Percolation Test - Correct Answer-d. Percolation Test The EPA stream water quality rate for fecal coliform is no more than: a. 200 colonies per 100 ml b. 300 colonies per 100 ml c. 100 colonies per 100 ml d. 400 colonies per 100 ml - Correct Answer-a. 200 colonies per 100 ml What illness are wastewater treatment plant employees at risk to get? a. Legionella b. Hepatitis A c. Norovirus - Correct Answer-b. Hepatitis A How do you determine amount of coliforms in water? a. Plate count test b. Total coliform count or the COLILERT test c. Blue d. Mottled Brown - Correct Answer-d. Mottled Brown Which travel further in a wastewater treatment plant drain field? a. Virus b. Bacteria c. Helminth d. Protozoa - Correct Answer-a. Virus At what percent can methane production be exposive? a. 1-5% b. 5-15% c. 15-25% - Correct Answer-b. 5-15% All are found at a wastewater plant except? a. Onsite chemist b. EPA certified operator c. Licensed wastewater operator - Correct Answer-a. Onsite chemist??? Streams pollution with nitrogen effects what downstream? a. Fish b. Algae production c. Ecosystems d. All of the above - Correct Answer-d. All of the above Pharmaceuticals that are removed by a wastewater treatment plant... a. Liquid b. Solid c. Both d. Neither - Correct Answer-d. Neither?? Since most break down and antibiotics are found in freshwater today All of the following are EPA priority pollutants, except: a. SO2 b. CO c. O3 d. Pd e. NO2 f. PM g. Pb - Correct Answer-d. Pd If there is a disaster and there is no running water for flushing toilets, what would be the best way to control raw sewage? a. Dig a trench and have lime to cover the odor b. Privy toilet with a fluid reservoir c. Pit or privy toilet with a dug out hole d. Buckets with a sealed container and sanitized disposable bags - Correct Answer-c. Pit or privy toilet with a dug out hole?? b. 5 ug/dL c. 10 ug/dL d. 15 ug/dL - Correct Answer-a. Any lead in blood leads to health defects Vent gases combined with high moisture inside a chimney will form: a. glass-like glaze b. hydrochloric acid c. sodium chloride d. sulfuric acid - Correct Answer-d. sulfuric acid Lead poisoning is commonly associated with children living in homes built before: a. 1940 b. 1954 c. 1978 d. 1983 - Correct Answer-c. 1978 Concentrations of Radon from EPA action level is: a. 2 pCi/L b. 4 pCi/L c. 6 pCi/L - Correct Answer-b. 4 pCi/L What are the four characteristics used to classify hazardous materials? a. Ignitability, corrosivity, reactivity, morbidity b. Flammability, corrosivity, reactivity, toxicity c. Ignitability, corrosivity, reactivity, toxicity d. Flammability, corrosivity, reactivity, lethality - Correct Answer-c. Ignitability, corrosivity, reactivity, toxicity All but the following is required of hazardous waste trucks except: a. MSDS carried on the truck b. Driver must have 10-hour HAZMAT training and certification c. Truck must be clearly marked with a sign, indicated that hazardous materials - or HAZMAT - are aboard - Correct Answer-b. Driver must have 10-hour HAZMAT training and certification What is not considered as hazardous waste? a. Anti-freeze b. Autoclaved serum c. Acetone - Correct Answer-b. Autoclaved Serum A REHS receives a call about a hazardous 55 gallon container, what should he/she do first? a. Evacuate the area and call the EPA b. Open it up and take a look c. Get information off the label d. Check for leaks - Correct Answer-c. Get information off the label?? Respirators are inspected and approved by? What is the proper term for disinfectant that is used on the skin? a. Sanitizers b. Disinfectants c. Antiseptics - Correct Answer-c. Antiseptics Where are you more likely to get typhoid fever from? a. Aquafers b. Pit or privy toilet adjacent to a spring - Correct Answer-b. Pit or privy toilet adjacent to a spring?? What is most likely the cause of biological contamination and causing health defects at home? a. Pet dander b. Tobacco smoke c. Volatile organics - Correct Answer-b. Tobacco smoke?? An apartment in complaining about a rash with red marks, this is most likely NOT from... a. Ticks b. Fleas c. Bedbugs d. Louse - Correct Answer-a. Ticks A dirty bar of soap is likely to be consider a/an? a. Aggregate b. Fomite c. Vehicle - Correct Answer-b. Fomite How many tenets or tips are there to establish a health home? a. 5 b. 6 c. 7 d. 8 - Correct Answer-c. 7 Lead, Asthma, Allergy, CO2, Mold, Radon, Home Safety What is someone most likely to get from a prison facility? a. Staph b. HIV c. Hepatitis B or C d. a and b e. a and c - Correct Answer-e. a and c Staph and Hep. B or C What type of Hepatitis is transmitted fecal/oral? a. Hepatitis A b. Hepatitis B c. Hepatis C d. Hepatis E e. a and c What is the most common type of cockroach found in urban areas in the US? a. American b. German c. French d. Oriental - Correct Answer-b. German What type of cockroach is called and considered a waterbug? a. American b. German c. French d. Oriental - Correct Answer-d. Oriental What is syndromic surveillance? a. Data collection of reported diseases b. Data generation and monitoring system of reportable diseases c. CDC data base - Correct Answer-b. Data generation and monitoring system of reportable diseased Which species of mosquito carries Encephalitis in the West? a. Culex tarsalis b. Culex pipiens c. Anopheles stephensi d. Anopheles albimanus - Correct Answer-a. Culex tarsalis Amoebic Dysentery is mostly likely caused by? a. Bacteria b. Protozoan c. Helmniths - Correct Answer-b. Protozoan Influenza is spread by? a. Direct contact b. Fomite transfer c. Vehicle tranfser - Correct Answer-a. Direct contact What is the benefit of using a license pest control company? a. They will cost less in the long run b. Less risk of pest developing chemical resistance c. Lowered risk of self-injury - Correct Answer-b. Less risk of pest developing chemical resistance but all of the above What is the carrier of Hantavirus? a. Dogs b. Racoons and deer c. Rodents d. Birds - Correct Answer-c. Rodents Nosicomial infections are found where? b. cat c. parrot d. hamster - Correct Answer-c. parrot What pet causes psittacosis? a. dog b. cat c. bird d. mouse - Correct Answer-c. bird What should a homeowner used to get rid of rats and for how long? a. Warfarin for 2-3 weeks b. Redsquil for 1-2 weeks c. ANTU for 3-4 weeks - Correct Answer-a. Warfarin for 2-3 weeks How do you sample for giardia? a. 500 gallons through a 1 um pore filter b. 400 gallons through a 1 um pore filter c. 300 gallons through a 2 um pore filter d. 200 gallons through a 2 um pore filter - Correct Answer-a. 500 gallons through a 1 um pore filter What is the incubation period for a chemical food borne illness? a. 1-7 hours b. 1-2 days c. 72 hours - Correct Answer-a. 1-7 hours What microbe grows best with a lack of oxygen? a. Aerobe b. Anaerobe - Correct Answer-b. Anaerobe Best place to store fish in the cooler? a. Under Fruits and Vegetables but over meats b. Under produce and pork but over chicken c. Under pork and beef but over chicken - Correct Answer-a. Under fruits and vegetables but over meats What is the most likely barrier that an REHS will encounter with a manager when performing an inspection at a restaurant? a. Quickly getting through the inspection questions b. The manager doesn't have time c. A busy and noisy kitchen - Correct Answer-c. A busy and noisy kitchen?? All should be in an human and science kitchen except? a. Hot water b. Hand wash sink c. Soap d. Sanitized cloth towels - Correct Answer-d. Sanitized cloth towels?? a. Thawing b. Slacking c. Moderating - Correct Answer-b. Slacking All of the following containers should be disposed of after a flood except? a. Glass jars b. Crown topped bottles c. Cans d. Rust Cans - Correct Answer-c. Cans?? You see a dumpster overflowing with food, what should you communicate to the owner as the biggest concern? a. Odor b. Aesthetics c. Breeding areas - Correct Answer-c. Breeding areas Who is ultimately responsible for not transferring disease in a tattoo parlor? a. Health Department b. EPA c. Owner and Artists - Correct Answer-c. Owner and Artists A bushel of apples test higher than tolerant levels of pesticides, the food is considered.... a. Toxic b. Gross c. Adulterated - Correct Answer-c. Adulterated Shellfish tags should be kept for how long? a. 30 days b. 60 days c. 90 days d. 120 days - Correct Answer-c. 90 days How do you tell if a food has been taken from the freezer, thawed, and placed back in the freezer? a. It is frozen solid b. More production of juices c. It will be discolored - Correct Answer-b. More production of juices What is considered comminuted? a. Bacon and ham b. Roast and steak c. Fish and sea food d. Hamburgers and hotdogs - Correct Answer-d. Hamburgers and hotdogs What does it mean when milk test negative for phosphatase? a. Post-pasteurization contamination occurred b. Pasteurization was unsuccessful c. Pasteurization was successful - Correct Answer-c. Pasteurization was successful b. Public safety, responder safety, property protection, environmental safety c. Environmental safety, public safety, responder safety, property protection - Correct Answer-a. Responder safety, public safety, environmental safety, property protection In the FDA 2009 food code, Hazards are defined as.... a. Core b. Priority Foundation c. Priority - Correct Answer-c. Priority The government organization that usually deal with major distracters is: a. Army b. CDC c. FEMA d. NIOSH - Correct Answer-c. FEMA Federal Emergency Management Agency What is malfeasance? a. International conduct that is wrongful or unlawful b. Conduct that is lawful but inappropriate c. Failure to act where there was a duty to act - Correct Answer-What is malfeasance? a. International conduct that is wrongful or unlawful b. Conduct that is lawful but inappropriate c. Failure to act where there was a duty to act What is misfeasance? a. International conduct that is wrongful or unlawful b. Conduct that is lawful but inappropriate c. Failure to act where there was a duty to act - Correct Answer-b. Conduct that is lawful but inappropriate What is nonfeasance? a. International conduct that is wrongful or unlawful b. Conduct that is lawful but inappropriate c. Failure to act where there was a duty to act - Correct Answer-c. Failure to act where there was a duty to act All of the following are agencies that responsible for protecting food against terrorism except: a. USDA b. HHS c. EPA d. CDC e. Fern f. eLEXNET - Correct Answer-d. CDC What is the ratio for the steepness of a ramp? a. 1:6 b. 1:12 c. 1:18 - Correct Answer-b. 1:12