REHS Exam Questions with 100% Correct Answers | Verified | Latest Update, Exams of Advanced Education

Download REHS Exam Questions with 100% Correct Answers | Verified | Latest Update and more Exams Advanced Education in PDF only on Docsity!

REHS Exam Questions with 100%

Correct Answers | Verified | Latest

Update

Tapeworm infection is probably due to: - Correct Answer- echinococcus most outdoor air emissions are derived from - Correct Answer-transportation indoor air quality depends on - Correct Answer-sources of air pollution in the building, sources of pollution outside the building, and the exchange of air between the inside and outside the total amount of oxygen demand in a sample (in mg/L) as measured by a specific strong chemical oxidation procedure is called the: - Correct Answer-COD a black light is used by food inspectors to - Correct Answer- determine the presence of rodent urine

sodium thiosulfate is added to water sample bottles to - Correct Answer-inactivate chlorine in water minimum separation distance are required and specified between the disposal field and: - Correct Answer-dwelling, property line, water course, and well (all of the above) NIOSH is the research arm of: - Correct Answer-OSHA the mandated public health activities listed in title 8-chapter 52 on the NJ administrative code are known as: - Correct Answer-core activities the legal definition of air pollution in NJ states that is the presence of one or more air contaminants in the - Correct Answer-outdoor atmosphere the venetians took important steps toward the control of communicable diseases when the introduced the practice of isolating ships that were under suspicion of carrying epidemic diseases. This practice is called - Correct Answer-quarintine

the term commonly used when a pathogenic organism enters and multiplies in the blood of a susceptible host is: - Correct Answer-septicemia which of the following organisms produces an environmentally resistant spore? - Correct Answer-clostridium botulinum a type of resource recovery program currently approved by NJ that, via special permit, allows clams to be taken from marginally polluted waters and cleansed prior to release for market sale is - Correct Answer-depuration in taking a lab sample for water microbiology, you should: - Correct Answer-use a sterile container, take at least 100 ml for total coliform, keep the sample cold and have the sample analyzed within 30 hrs (all of the above) in collecting a water sample for volatile organic compounds, you need - Correct Answer-a 40ml glass vial with septum seal and an acid preservative

in choosing a laboratory, health departments must make sure

• Correct Answer-they are NJDEPE certified for the test you want performed good public health management requires - Correct Answer- intelligence, organizational behavior, human resources, firm knowledge in health and epidedemiology. (all of the above) mixed construction/demolition material consisting of wood, metal, brick and concrete is considered a source separated recyclable and can be used as clean fill - Correct Answer-false which of the following characteristics may cause a chemical to be categorized as hazardous? - Correct Answer-flammable, toxic, corrosive, explosive (all of the above) which of the following act as sources of oxygen into a surface water? - Correct Answer-atmospheric reaeration and photosynthesis (both c and d) bacteria reproduce by - Correct Answer-fission

which of the following is not a method of classifying viruses - Correct Answer-gram stain reaction which of the following is not a method of classifying bacteria?

• Correct Answer-presence or absence of spikes on the membranous envelop the new jersey worker and community right to know act - Correct Answer-establishes a program for the disclosure of hazardous chemical substance information and it helps people in making informed decisions about the chemicals they work with and may be exposed to in their communities (A and C) if you ever wanted to know what hazardous chemicals are present at a covered facility what would you refer to? - Correct Answer-the right to know survey what agency will provide copies of the right to know survey for public and private sector facilities and hazardous substance fact sheets to anyone who makes a request? - Correct Answer-right-to-know county lead agencies

How should shellfish be stored in a retail food establishment?

• Correct Answer-ice What organ is radon most likely to affect? - Correct Answer- lungs If an inspector were to inspect a youth camp, which of the following would he ask to see? - Correct Answer-pool log containing ph and cl readings, written camp policies, proof of insurance, and administrative credentials (all of the above) A small pond near a farm experienced an algae bloom. Which of the following was most likely the cause - Correct Answer- Fertilizer runoff causing an increase in nitrogen and phosphorus Why are animals used in laboratory testing of chemicals as opposed to humans? - Correct Answer-Test results using animals can be analyzed in a much shorter period of time than if humans were to be used. Which of the following is least likely to occur as a product of air pollution? - Correct Answer-gastrointestinal problems

During lunch break, a group of construction workers noticed an unusually high amount of Rattus rattus running around. This is probably due to the fact that: - Correct Answer-There has been a recent demolition of several blighted two story houses How is the concentration of radon measured? - Correct Answer-PCi/L; picocuries / liter What is the most likely source of childhood lead poisoning? - Correct Answer-old painted windows What is the best source of protection against radioactivity? - Correct Answer-lead out of the following shellfish, which is the least likely to give someone hep A. Mussels, scallops, clams, or oysters. - Correct Answer-scallops Which of the following can cause transmission of Hepatitis B?

• Correct Answer-needle sharing, blood transfusion, plasma transfusion, homosexual activity (all of the above)

If a child tested for high lead after a finger stick test, what would be the next course of action? - Correct Answer-venous blood sample a child in elementary school has come down with lice. this is an: - Correct Answer-infestation placental transfer of immunity is an example of - Correct Answer-natural passive A salmonella outbreak has occurred in which 520 people are infected. As a sanitarian assigned to the case you should: - Correct Answer-draw up correlations between the infective and non-infective control groups Which of the following is a causative agent of the genus plasmodium is the most dangerous (fatal) cause of malaria? - Correct Answer-falciparum

Which of the following methods below would result in the least amount of garbage? - Correct Answer-recylcing Infections that occur in a person with AIDS are caused primarily by - Correct Answer-opportunistic infections Which of the following is required between a wading pool and a swimming pool? - Correct Answer-six feet deck of space When inspecting a public bathing place, which of the following are required? - Correct Answer-ring buoy, pool water log, emergency phone numbers and lifeguard on duty (all of the above) Which of the following is an example of simple asphyxiation? - Correct Answer-inert gas that displaces oxygen in the lungs Which of the following has the greatest penetrating power? - Correct Answer-gamma rays- electromagnetic Why would the fecal coliform count be perrefered to total coliform? - Correct Answer-it is an indicator of warm blooded animals

A chemical reaction occurs when chlorine is added to water. The pH of the end product is 8.00. Which of the following equations is the best representation of the reaction? - Correct Answer-HOCL-----> H+ OCL- which process is least likely to occur in a septic system - Correct Answer-removal of BOD What does the term "bulking" refer to in sewage treatment? - Correct Answer-Flocculants in primary treatment contain sheathed bacteria and would not settle. ppb ( parts per billion ) of a chemical is best represented as - Correct Answer-12 ug/l In case of an overturned truck containing radioactive material, the best way of preventing injury is by: - Correct Answer-time, distance, shielding What's the reason for having air moving and ventilation in a manufacturing plant? - Correct Answer-A.To prevent build-up of vapors

A hunter shot and subsequently skinned rabbits without wearing gloves. He then experiences ulcers on his hands and lymph node swelling. He probably has contacted: - Correct Answer-Tularemia Which of the following diseases, caused by a mite, has been frequently confused with chicken pox? - Correct Answer- Rickettsial Pox Organism which grow at low temperatures are: - Correct Answer-Psychrophilic Keeping hot foods hot and cold foods cold refers to temperatures? - Correct Answer-Less than 41f and greater than 135f Tapeworm infection is probably due to: - Correct Answer- Echinococcus Flocculation is best defined as: - Correct Answer-The bringing together of suspended particles

Which of the following is not true concerning Q Fever? - Correct Answer-It's never transmitted person to person Halo organics are: - Correct Answer-Organic compounds that have Br- or Cl- in their structure. The formation of halo-organic in drinking water is most important because: - Correct Answer-The compound may be carcinogenic. The primary pollutant from a company burning fossil fuel is: - Correct Answer-CO A colorless, pungent odor released from fossil fuel plants is: - Correct Answer-SO The three chemicals of main concern as environmental pollutants are: - Correct Answer-ozone, acid gases and particulates The importance of using chemicals to treat trihalomethanes is because: - Correct Answer-it is carcinogenic

Impulse noise is best defined as: - Correct Answer-A loud blast from a firecracker Which is not significant in minimizing hazardous exposure in the work place? - Correct Answer-.Circulate air so it wouldn't blow in the faces of the workers TOC can best be defined as: - Correct Answer-Total organic carbon TLV can be best defined as: - Correct Answer-Thres-hold limiting value Which type of soil would be present the most difficulty in the vertical flow of water in a septic system? - Correct Answer- clay In a floor plan for a retail food establishment, which of the following should be identified? - Correct Answer-refrigeration units, cleaning areas, dry storage, food preparation areas (all of the above)

Which of the following is the best definition of incidence rate?

• Correct Answer-The number of newly acquired cases of a disease Which is not true of RBC in wastewater treatment? - Correct Answer-It is a completely anaerobic process Sterilization is: - Correct Answer-The complete removal of all life Which of the following would be considered safe? - Correct Answer-Water fountain with spout above the rim What is the major food associated with salmonella? - Correct Answer-poultry When should a load of dishes be put in through the washer in a retail food establishment? - Correct Answer-immediately after each use The process which kills all forms of microbial life: - Correct Answer-sterilization

Which of the following is a biological treatment process? - Correct Answer-RBC: SECONDARY Synergism is best defined as: - Correct Answer-the total is greater than the sum of the parts an open dump is: - Correct Answer-an improper method of waste disposal title 24 deals with - Correct Answer-food and drugs Adulterated food is defined as: - Correct Answer-containing substances and poisons what is a good example of point source pollution - Correct Answer-underground storage tanks drinking water tests are performed and monitored by - Correct Answer-certified laboratories

loamy soil contains which of the following? - Correct Answer- sand, silt and clay a causative agent of aids is - Correct Answer-a virus that attacks the immune system the bubonic plague is transmitted by - Correct Answer-rat fleas the least favorable method of fly control in a dining hall is - Correct Answer-fogging and fumigation What is the significance of a perk test? - Correct Answer- Proper location and design of a septic What is zoonosis? - Correct Answer-Disease transmitted by vertebrate animals to humans Which of the following are examples of water quality tests? - Correct Answer-BOD, DO and microbial tests. (all of the above)

when Food is inoculated with Staphylococcus Aureus and left out: - Correct Answer-Microbes would grow exponentially When there's a flu epidemic, the first consideration is to: - Correct Answer-those of high risk groups A perched zone of water would not be caused by: - Correct Answer-sandy loam in seepage field Transmission of disease through an inanimate object. - Correct Answer-fomite Hepatitis A Virus: - Correct Answer-Cannot multiply in food or water Passive monitors have limited utility for monitoring pollutants because... - Correct Answer-You need to visually monitor them to be effective Sources (causes) of indoor air pollution include: - Correct Answer-paint, oil, Tabaco products ( all the above)

Which of following is true about environmental tobacco smoke ETS? - Correct Answer-There are no state regulatory levels for this pollutant true or false,NO2 and SO2 are Acidic aerosols they can enter the respiratory pathway - Correct Answer-true True or False : Asbestos a health risk because asbestos exist as microscopic respirable particles that remain airborne for long periods, Inhalation of Asbestos particles cause lung tissue scarring and is linked to cancer, Health issues with an Asbestos may not become a parent until the 15th through 40 years after exposure. - Correct Answer-true true or false, carbon monoxide burns at about 250 times more effectively to a hemoglobin than oxygen and its deprivation will result in death. - Correct Answer-true what is colorless, oderless and hard to detect? - Correct Answer-carbon monoxide what is considered to be a serious indoor air pollutant? - Correct Answer-carbon monoxide

why is the ozone stratosphere important? - Correct Answer-it shields the erth from harmful UV B radiation which of the following best defines organic waste - Correct Answer-it is carbon based and can be broken down biologically which if the following is NOT considered to be an inorganic waste - Correct Answer-salt, metal, gravel, sand (all of the above) which of the following is the best way to define oxygen depletion - Correct Answer-bacteria breakdowns are organic materials that help stabilize, fish and bacteria need O2 to survive, reduction of dissolved oxygen in receiving stream due to biological decomposition of organic material, (all of the above) which of the following is not a bacteria? - Correct Answer- polio

true or false, polio and hepatitis are types of viruses - Correct Answer-true giardia and cryptosporidium are two types of protozoa true or false - Correct Answer-true which is the best definition of total solids - Correct Answer- refers to the matter suspended or dissolved in water or waste water populations that increase rapidly can be best described as - Correct Answer-exponential growth which of the following is the best definition of dissolved solids? - Correct Answer-solids in water that can pass through a filter what is the best definition for suspended solids? - Correct Answer-solids in water that can be trapped by a filter (settleable and non-settleable)

which of the following is the best definition for colloidal solids

• Correct Answer-solids that remain dispersed in a liquid for a long time due to their small size and electrical charge Which of the following is the best definition for Floatable Solids? - Correct Answer-Matter in wastewater which will not stay in suspension during a preselected settling period, such as One Hour, but floats to the top. ( Oil & Grease ) true or false, fresh wastewater is usually ________ in color - Correct Answer-grey septic waster water will usually be _____ in color - Correct Answer-black what is false about campylobacter jejuni is false? - Correct Answer-the food it is most commonly linked with is undercooked beef, especially hamburger true or false, refrigeration is a reliable means of preventing growth of all types of clostridium botulinum? - Correct Answer-false

true or false, stapholococcal food poisoning is a classic example of an intoxication not an infection - Correct Answer- true which one of the following organisms does not produce illness through a pre-formed toxin in food - Correct Answer- campylobacter jejnuni which microorganism does this statement describe: Produces toxins, an anaerobic spore former, typically linked to inadequately cooked, cooled or reheated meat dishes. It needs at least 100,000 viable cells to produce enough toxin to cause symptoms - Correct Answer-clostridium perfringes which pathogenic e coli matches this description: oldest recognized category of pathogenic E. coli. Major cause of infant diarrhea in developing countries. Transmitted by contaminated infant formula and weaning foods - Correct Answer-enteropathogenic e.coli Which microorganism is described by these key features? Aerobic spore former; at least 100,000 cells are needed to

cause symptoms. makes two enterotoxins; often found on rice and other grains - Correct Answer-Bacillus cereus True or False. Foodborne intoxications are prevented by heating food to 165 degrees F - Correct Answer-false the chain of custody refers to - Correct Answer-a method of introducing evidence a ph less than 7 is considered - Correct Answer-acidic a ph more than 7 is considered - Correct Answer-basic what is a type of water collection system? - Correct Answer- sanitary waste, storm water, combined water (all of the above) which of the following best defines a sanitary waste? - Correct Answer-carried from homes, commercial business and industrial facilities to wwtp

which of the following best defines storm water? - Correct Answer-runoff from streets, land and building roofs and normally discharged to receiving stream untreated by separate pipe Which of the following best defines Combined Water? - Correct Answer-Sanitary and storm-water have sanitary portions may become overloaded during rain storms. T/F: Velocity Must be maintained at 2 ft/sec in gravity sewers (slope). - Correct Answer-true What of the following best defines Characteristics of Sewage?

• Correct Answer-Oil/grease, solids content (industrial v. domestic) Which of the following best defines Detention Time? - Correct Answer-Amount of time spent in the pipe getting to WWTP (days or hrs.) Which of the following best defines Poor Construction? - Correct Answer-Inflow and infiltration, root intrusion

T/F: Rotating Biological Contactor (RBC) is a treatment of units that consists of a shaft, "media" tank and a drive unit - Correct Answer-true T/F: Activated Sludge is a floc or solid formed by microbes. - Correct Answer-true What control measure is used to elevate the amount of food available per pound of mixed liquor suspended Solids? - Correct Answer-Food to Microorganism Ratio F:M What is Mean Cell Resident Time? - Correct Answer-Average length of time a mixed liquor suspended solid particle remains in the activated process. ______________ is a combination of return activated sludge and wastewater (primary effluent) that flows into the aeration tank. - Correct Answer-Mixed liquor T/F: Mixed Liquor Suspended Solids (MLSS) The suspended solids concentration in the mixed liquor and