REHS Study Guide

REHS Study Guide What does photodecomposition in a plastic bottle do in a landfill or waste dump? - ANS Reduce the amount of waste In a newborn hospital wing humidifiers will? - ANS Need to be cleaned frequently due to bacterial growth on the components What is LEAST effected when contaminated air is found in a hospital? - ANS Air filtered in the morgue. What is the maximum time for industry to generate hazardous waste without a permit? - ANS 90 = large quantity 180 = small quantity What is the best way to prevent groundwater contamination in wells? - ANS Grouting the annular space Where are you least likely to find asbestos? - ANS Ceramic floor tile? (other answers included insulated pipe coverings and wall plaster and asbestos can be found in floor tiling products so if there is an option of NONE OF THE ABOVE...maybe choose that one). What industry does the BISSC deal with? - ANS Baking (stands for Baking Industry Sanitation Standards Committee). Which amendment deals with illegal search and seizure of private property? - ANS 4th (IV) Groundwater Rule? - ANS Protection against microbial organisms, reducing the risk of fecal contamination of the water for those who use the groundwater supply as a drinking source. Source water? - ANS Untreated water from streams, lakes, aquifers which is ultimately used as the drinking supply for the general public. When filling out a search warrant application what is not necessary to include? - ANS Neighbor's testimony (is information which is not coming from an approved authority...could be hearsay). What are the most common contaminants found in an automobile crank shaft? (Crank case) - ANS Gasoline and phenols When testing for radon in schools where is the best place to test? - ANS Lowest rooms in the building The sand filter is used to remove? - ANS Bacteria and suspended solids from water. The formula Q=AIR is used to determine? - ANS Rate of runoff in a watershed What is the importance of Darcy's Law? - ANS It is a derived constitutive equation that describes the flow of a fluid through a porous medium. the law was formulated by Henry Darcy based on the results of his experiment on the flow of water through beds of sand. It also forms the scientific basis of fluid permeability used in the earth sciences. Q=KIA - ANS Groundwater flow, flow through an underground formation. Which is LEAST likely to cause foodborne illness in schools? - ANS Whole vegetables grown at school and cooked in a school cafeteria. A possible cause of methemoglobinemia is? - ANS High concentrations of Nitrates in drinking water A water treatment plant should have what (according to Salvato)? - ANS A well equipped lab, certified operator, and qualified chemist. (is certified chemist the same as qualified chemist and if the question asks what is NOT needed at a water treatment plant would the answer be "Licensed Plant Manager since certified operator is required to be there). Upon receiving a permit for a temporary food facility the facility should first? - ANS Post the permit in a conspicuous place Which form of Hepatitis is spread by the fecal oral route? - ANS Hepatitis A What is the most common type of food borne illness? - ANS Salmonella A temporary food service caterer may not accept food from which of the following? - ANS Food prepared from home. What is most likely happening if a family living in a local housing project starts to feel the following symptoms: headache, dizziness, weakness, pain in the fingernail bed, nausea, and red blotchy skin? - ANS Carbon Monoxide (CO) poisoning. Which type of pool is prohibited from use by most Health Departments? - ANS Fill and Draw pools What is the average turnover rate for community pools? - ANS 6 to 8 hours (spas=30 minutes and wading pools=1 to 2 hours) Household hazardous wastes according to RCRA? - ANS Household hazardous waste is EXEMPT from RCRA What are the signs of fresh fish? - ANS Rigid tail and body, bulging clear eyes, bright red gills, smells like the sea, plump and firm, elastic flesh (bounces back). Signs of bad fish include: sunken eyes, bad odor, gray or greenish gills. Institutions are most likely considered to be what? - ANS Communities What food items can be kept after a flood? - ANS Sealed canned goods (sanitize outside of can before opening) When Oxygen demand is less than 19.5%, what type of PPE is required? - ANS Self-contained breathing apparatus. If an enclosed space is found to have over 15% oxygen demand, what is needed before entering? - ANS Positive pressure self-contained breathing apparatus. (Anything below 19.5% oxygen demand=magic number for this type of PPE) What is the optimal moisture level for a home? - ANS 40% - 50%, but the ideal range is anywhere from 30% - 50%. In a Biosafety Level 2 Area what is NOT needed - ANS Clothing sterilized before washing What is the least that can be used to block Alpha particles? - ANS A piece of paper. What is the best color of soil to be used for a waster water drainage area? - ANS Red (also yellow or brown) What is the most common level used in a sound level meter? - ANS Level A Sound can be controlled by which of the following ways? - ANS Turning off or stopping the sound, Shielding (choose ALL OF THE ABOVE) Which organization regulates that the structure of a house is properly constructed? - ANS HUD What is NOT a characteristic of a common house fly? - ANS They feed on solid foods What is the recommended temperature for a hospital laundry? - ANS 160 degrees Which is the most common type of cock roach? - ANS German What is the spacing required for public beaches? - ANS 50 square feet What is the proper spacing for hospital beds to be laid out foot to head? - ANS Salvato says: 4 feet apart and 1 foot away from the wall ( answers on test to choose from, 3 feet is best for placement of head to foot and 5 feet which is best for placement of bed next to one another). Emergency Shelters require how much space? - ANS 30 square feet per person When a sewer line and a fresh water line come into contact with one another what is it called? - ANS Cross Connection What is used inside the home to block the passage of sewer gases into the home? - ANS P Trap (on plumbing fixtures) What is the direction of wind associated with the operation of a sanitary landfill? - ANS WITH the prevailing winds. What is considered to be NOT overcrowding? - ANS 1.5 people to a room A home provides all EXCEPT what to the homeowner/renter? - ANS Protection from accidents Which is considered NOT a violation under HUD's housing code? - ANS Unpainted interior walls What should NOT be used to clean surfaces in a food facility? - ANS Phenols If a building is to be found to have Sick Building Syndrome, what is the first thing you should do? - ANS Evacuate the building What is the most common carrier for Dengue fever? - ANS Mosquito What is one of the major uses of the JIC (Joint Information Center)? - ANS Open communication with the public (to ensure coordination of public information during incidents that involve multiple organizations). Which is least likely to transmit diseases? - ANS Soil How far (what depth) can flies penetrate compacted soil? - ANS 6 inches (5 feet un-compacted) What is the largest contributor to landfills? - ANS Paper goods and wrappings. Scabies is contracted by which of the following ways? - ANS Human to human contact (and is a mite which requires blood for survival). What is not a requirement for playgrounds? - ANS (?????Don't know which of these...wheel chair access, pitching, signage) I think it is pitching Before what year would you find lead paint used in homes? - ANS Any homes prior to 1978 Which answer would be best for most irritation to the eyes when in a swimming pool? - ANS Excess amounts of chloramines (could also be high pH) What is the correct waste water cycle? - ANS Coagulation, flocculation, sedimentation, filtration To prevent Psittacosis, what pet should not be brought to a school? - ANS Parrot (bird disease) Who regulates what information is written on shellfish containers? - ANS USDA What is the purpose of blanching? - ANS To stop enzymes and stabilize color A trailer park is leaking hazardous waste directly on the ground and there is an immediate health threat and the owner will not speak to you, what can you do? - ANS Acquire an injunction notice (injunction = is an equitable remedy in the form of a court order that requires a party to do or refrain from doing specific acts). Waste landfills should be supplemented with what? - ANS A top and bottom liner, leachate collection and removal system and a leak detection system). If there is a clean lake, small fresh water stream involved what would be the best waste disposal system adopted by a small community and a developing community? - ANS Slow sand filtration In emergency situations what should be done to water for disinfection? - ANS Boil (at least 1 minute), 8 drops of iodine tincture per quart, chlorine (regular strength, unscented) per gallon of water and let sit for at least 30 minutes. What does g/ppm represent? - ANS Vapor concentrations (gas concentration). Why are vacuums not recommended for use in hospitals? - ANS Potential to spread hazardous materials/bacteria into the air What food should not be obtained by a food vendor? - ANS Adulterated food items (unsafe or impure food items) After a food borne illness outbreak is detected what is the MINIMUM time period required for food borne illness investigations/ - ANS 12 hours (the range is 12 to 72 hours). What is the recommended detention time for wastewater in a septic tank? - ANS 24 to 72 hours What is the minimum BOD requirement for a trickling filter? - ANS 40% What is NOT needed in prisons for fire safety? - ANS Fire retardant privacy curtains. (what IS needed are uncluttered cells, over ride on cell doors, and an evacuation plan). Wastewater can be used for what? - ANS Watering vegetable crops Tanning beds cause all of the following except: - ANS Arrhythmia What is the required test for fecal matter in water? - ANS Total fecal coliform test What is the highest temperature for a spa? - ANS 104 degrees (choose 102 to 104 degrees if it's an option) Where should fresh fish be stored in a refrigerator? - ANS Under raw vegetables on the bottom lowest rack Hazardous wastes must have what? - ANS The right characteristics and be on the hazardous waste list Who is responsible at a tattoo parlor? - ANS Manager/employees What must be sterile in a tattoo parlor? - ANS Needles (definitely) but could be ALL OF THE ABOVE: hands, disposable gloves, disposable ink??? What is the best method used to indicate a gas leak on piping? - ANS Apply soap bubbles to piping (at possible leak sites, joints) and look for air bubbles Hardness in pool water is made by what? - ANS Minerals such as Magnesium, calcium, and sodium. Psychrophilic bacteria grow best at what temperature? - ANS 50 degrees F or below (cold loving bacteria) Nosocomial infection in hospitals are a result of? - ANS Improper hand washing (sterilize equipment and properly was hands.) Lead is absorbed how many times more in infants than in adults? - ANS 5 times more (50% absorption rate in kids, 10% in adults) Campylobacter jejuni? (High rate of infection) - ANS Common at pork plants (salmonella in poultry plants) What is not a common effect of silicosis? - ANS Presence of asbestos spores If a food receives a maximum amount of unknown pesticide, what is the food considered to be? - ANS Adulterated Which of the following type of filters has the slowest filtration rate? - ANS Cartridge filters What is the turnover rate for a spa? - ANS 30 minutes What is the maximum hand washing temperature? - ANS 98-110 degrees The HACCP plan applies to what? - ANS Products and processes (beef and chicken primarily) What does a psychrometer measure? - ANS Dew point (humidity) Several workers in a building are complaining of headaches, nose and throat problems. Inspectors assume that it is sick building syndrome, where would you begin your investigation? - ANS The HVAC system When using the Sous-vide method in food processing what bacteria is most likely to be found? - ANS Clostridium Botulism A gram-negative phosphates test of a milk product indicates what? - ANS If the milk has been properly pasteurized The removal of sludge can be disposed of by all of these except? - ANS Ocean disposal (sludge CAN be removed by land disposal, trickling filter, and/or incineration. To properly remove Giardia cysts which of the following must occur. - ANS Filter 500g of water through a 1 micron filer Polio is what type of communicable disease? - ANS Virus Amoebic dysentery is caused by what? - ANS Protozoa (entamoeba hystolica) Typhoid fever is caused by what genus? - ANS Salmonella (Thyphe can contaminate water and food) When using a DPD color test for pool, what should you do to best determine the actual color? - ANS Hold it against a white sheet of paper. What is myasis? - ANS Maggots in babies' noses (flies depsit larvbae which attach to the skin). What is the most permanent method of mosquito control? - ANS Remove the breeding areas (Drain all bodies of water) Which major food borne illness is spore-forming? - ANS Bacillus Cereus When assessing a site for a future treatment plant against regulations what is this called? - ANS EIS - Environmental Impact Survey What is the best setback distance between a water line and sewer line in a trailer park? - ANS 10 ft The effluent strength of wastewater is the? - ANS Biochemical Oxygen Demand Which of the following is NOT a criterion for a trailer park? - ANS Roads must be 18 feet wide??? (that might be the answer, but Salvato also states that roads CAN BE 12 feet wide, 24 feet wide 2 way, and 34 feet wide 2 way with parking) What is the total amount of hazardous waste an industry can produce without complying to RCRA requirements? - ANS 220 lbs same as 100 kg For a review of a temporary food establishment what is not needed for submittal? - ANS Copy of license. (What is needed is equipment list, menu and facility layout) When storing food in a refrigerator, the best way to maximize air use is to? - ANS Store food containers with space for air circulation around the corners, store with space around them). What is the vector known to cause Rocky Mountain Spotted Fever? - ANS Dermacentor (NOTE: Ixodes are the ticks that cause lyme disease) What should be used around water/pools to prevent shocks and electric hazards? - ANS GFCI sockets (outdoor use), GFI sockets (indoor use). Product specifications include all of the following except? - ANS Granular (specs include weight, quality, and content) Milk with the date 8/5/13 on the bottle is found in the store shelf during an inspection which was conducted on 8/8/13. What does this date refer to? - ANS Sell-by date What is the best way to protect the public water system from bioterrorism? - ANS Take routine samples of the water What is the most common food borne illness? - ANS Salmonella (norovirus) What is the legal order prohibiting the removal or use of something? - ANS Embargo What is the most common control for rats? - ANS Warfarin What insecticide is of a biological nature? - ANS Pyrethrum (from Chrysanthemum) What is the most effective way to maintain a swimming pool? - ANS Continuous recirculation, chlorination and filtration over a 24 hour period Food delivery trucks must have which of the following? - ANS Refrigeration capable of holding food at 41 degrees F or below What is the Federal agency responsible for disaster response? - ANS FEMA (Federal Emergency Management Agency) What is the free chlorine residual for pools? - ANS 1 to 3 mg/L Shellfish have been approved to be held below which temperature? - ANS 41 degrees What is a common type of bioterrorism agent that has been used? - ANS Anthrax/Smallpox Which is part of HACCP? - ANS Cooking poultry to 165 degrees F or higher. Which would be the biggest threat to contaminating groundwater? - ANS Standing cesspools Which is NOT ionizing radiation? - ANS Protons (Ionizing radiation does include: x rays, gamma rays, alpha and beta particles During a disaster response, Health Departments are responsible for all except what? - ANS Provide first responders to explosive and hazardous spills If a septic tank is emptied during times of high water table what could possibly happen? - ANS The tank could float out of the ground What is the best way to prevent leaks in a septic tank? - ANS Construct septic tanks with non-corrosive materials Muerto Canyon virus is caused by what vector? - ANS Deer mice ( Sin Nombre virus) Hantavirus affects which primary organ? - ANS Lungs Turbidity is measured in what? - ANS NTU's - (and possibly TSS - total suspended solids) The biological effects of radiation on living organisms during their lifetime are called what? - ANS Somatic Symptoms from chemical food poisoning can be seen within? - ANS 1 hour To prevent illness, whole shelled eggs should be? - ANS Stored at 41 degrees or below (45 degrees acceptable) What is the great risk associated with handling blood borne pathogen? What are you at the greatest risk of catching? - ANS Hepatitis and/or HIV