NEHA RS-REHS EXAM-with 100 verified solutions.docx, Exams of Advanced Education

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NEHA RS/REHS EXAM-with 100% verified solutions Question 1 An action authorized by law to restrict or prevent the movement of goods for the protection of public health, safety and welfare is called Choose one answer. a. an injunction b. an embargo c. an order to cease and desist d. a subpoena an embargo Question 2 Field observations are not always reported in total because Choose one answer. a. the reported forms are usually inadequate b. the significance of the data is not understood c. the field staff are instructed to limit observations d. the supervisor may insist on reinspection the significance of the data is not understood Question 3 In preparing a legal action, one of the first steps a sanitarian should do is to Choose one answer. a. obtain a warrant b. obtain a court order c. keep very accurate records d. check with other agencies keep very accurate records Question 4 Which of the following statements is true regarding an inspection efficiency rating? Choose one answer. a. the average amount of time required for each inspection must be determined by the administrator of the sanitation program b. the quality of the inspections should be emphasized over quantity c. the numerical rating obtained per year is less important as the relative change from year to year d. it is not possible to receive a rating over 100 percent the numerical rating obtained per year is less important as the relative change from year to year Question 5 When a health violation is classified as a misdemeanor, it can be more readily resolved by . Choose one answer. a. criminal proceedings b. civil action c. immediately closing the facility d. posting a public notice civil action Question 6 Which of the following is the most critical step needed before detailed information is collected? Choose one answer. a. determining how the information will be used b. determining how often the information will be updated c. determining how much time will be needed for data collection d. determining how much time will be needed for the record-processing unit to enter the data determining how the information will be used Question 7 Which of the following is the most effective technique for ceasing operation of a noncomplying establishment? Choose one answer. a. a mandatory injunction b. revoking a license c. an injunction b. routine c. complete d. initial reinspection Question 15 Marks: 1 In order to perform an evaluation, the data collected must be reliable. Which of the following is not a definitive characteristic of reliability? Choose one answer. a. consistent b. easy to obtain c. reproducible d. dependable easy to obtain Question 16 Marks: 1 The changing role of environmental health scientists, including their duties of administrating services to the public, has been brought about largely due to Choose one answer. a. adequate intelligence data on environmental trends showing the urgency for action b. stricter governmental control c. public recognition of the problems and the desire for higher quality of life d. none of the above public recognition of the problems and the desire for higher quality of life Question 17 Marks: 1 Standards must be scientifically supported, understandable, measurable and Choose one answer. a. traditional b. acceptable to all parties involved c. enforceable d. rigid enforceable Question 18 Marks: 1 The terms "goals" and "objectives" are sometimes used interchangeably; however, objectives should be considered as Choose one answer. a. a general direction b. the final purpose or aim c. the idea which is always realized d. the realistically attainable ends the realistically attainable ends Question 19 Marks: 1 Letter and report writing are effective means of acquainting with the diversity and complexity of a facility's problems. Choose one answer. a. local officials b. establishment owners c. the general public d. lawmakers establishment owners Question 20 Marks: 1 The agencies general administrative plan provides the basis for Choose one answer. a. a search warrant b. an administrative warrant c. a seizure d. none of the above an administrative warrant Question 21 Marks: 1 Inspections of nonpublic areas can be made by consent of the owner or occupant and Choose one answer. a. on the basis of a general administrative plan b. whenever premises are vacant c. whenever premises are unlocked d. without regard to requests or demands that inspectors leave the premises on the basis of a general administrative plan Question 22 Marks: 1 The statement of goals and objectives should recognize environmental quality and community needs such as Choose one answer. a. clean air b. clean food service establishments c. decent housing d. all the above all the above Question 23 Marks: 1 A standard for dishwashing that states that the "total bacteria count should not exceed one hundred per utensil surface," is an example of what type of objective? Choose one answer. a. enforceable b. specification c. compliance d. performance performance Question 24 Marks: 1 c. need for the program, evaluation, and law d. all the above all the above Question 1 Marks: 1 The precise levels at which specific air pollutants become a health hazard are relatively easy to establish by existing surveillance systems. Choose one answer. a. True b. False False Question 2 Marks: 1 Particulates larger than 10 microns can penetrate easily into the respiratory tract. Choose one answer. a. True b. False False Question 3 Marks: 1 It is possible to control noise Choose one answer. a. at the source b. in its path of transmission c. where it is received d. all of the above all of the above Question 4 Marks: 1 Fluorocarbons in the atmosphere are of concern because they may Choose one answer. a. react with the ozone in the upper atmosphere, thus reducing the total amount of ozone available b. cause an increase in ultraviolet radiation reaching the earth c. cause an increase in skin cancers and changes in our climate, animal, and plant life d. all of the above all of the above Question 5 Marks: 1 The terms "washout" and "rainout" both refer to a cleansing process of pollutants in the atmosphere. Choose one answer. a. True b. False True Question 6 Marks: 1 A is a dimensionless unit to express physical intensity or sound pressure levels. Choose one answer. a. noise level b. decibel c. hertz d. sound pressure level (SPL) decibel Question 7 Marks: 1 The frequency of a sound determines its pitch. Choose one answer. a. True b. False True Question 8 Marks: 1 When two pollutants are combined, the effects are greater than the sum of the individual effects. This is called Choose one answer. a. commensalism b. synergism c. magnification d. multiplication synergism Question 9 Marks: 1 Scrubbers are wet collectors generally used to remove particles that form as a Choose one answer. a. nonsoluable vapor b. mist, solid, or vapor c. fog, mist, or dust d. fume, dust, or mist fog, mist, or dust Question 10 Marks: 1 Precipitation accomplishes an effective cleansing process of pollutants in the atmosphere by Choose one answer. a. accumulation of small particles in the formation of raindrops or snowflakes in clouds b. the washing out of scavenging of large particles by falling raindrops or snowflakes c. removal of gaseous pollutants by dissolution and absorption d. all of the above all of the above Question 11 Marks: 1 A deterioration in the ozone layer of the stratosphere can cause an increase in ultraviolet radiation reaching the earth. Choose one answer. a. True b. False True d. all of the above all of the above Question 19 Marks: 1 Turbulence is the wind characteristic that is Choose one answer. a. most predictable b. the most effective mechanism for the dispersion or dilution of a cloud or plume of pollutants c. responsible for generating cyclonic pollutants d. responsible for the agitation of otherwise harmless ions the most effective mechanism for the dispersion or dilution of a cloud or plume of pollutants Question 20 Marks: 1 Some specific measures that can be used to reduce the effect of highway noise include Choose one answer. a. setting lower speed limits for certain sections of a highway b. establishing alternate truck routes c. enclosure of highways going through residential areas d. all of the above all of the above Question 21 Marks: 1 For a pure tone (single frequency) to be produced, there must be a one-to-one correspondence between Choose one answer. a. loudness and intensity b. frequency and intensity c. pitch and loudness d. pressure and pitch loudness and intensity Question 22 Marks: 1 have been known to cause crippling skeletal damage to cattle through ingested contaminated vegetation. Choose one answer. a. sulfides b. fluorides c. nitrates d. chlorides fluorides Question 23 Marks: 1 Air is vital to existence. In fact, humans breathe in a day's time an average of Choose one answer. a. 3 to 4 pounds of air b. 35 pounds of air c. 37 pounds of air d. 1,600 ft3 of air 35 pounds of air Question 24 Marks: 1 Stability of the atmosphere Choose one answer. a. is the ability to enhance or suppress vertical air motions b. is largely determined by the vertical temperature profile c. refers to the inertness of its composition d. a and b above a and b above Question 25 Marks: 1 In what part of the earth's atmosphere are photochemical oxidants produced? Choose one answer. a. lithosphere b. stratosphere c. troposphere d. hydrosphere troposphere Question 26 Marks: 1 Sources of pollutants can generally be classified as Choose one answer. a. line sources b. area sources c. point sources d. all of the above all of the above Question 27 Marks: 1 Which of the following items are not natural topographic features? Choose one answer. a. rivers b. canals c. foliages d. hills canals Question 28 Marks: 1 A particle count of above is said to be representative of an urban area Choose one answer. a. 10,000 b. 50,000 Question 36 Marks: 1 The amount of sound energy a material can absorb is a function of its absorption coefficient at a specified frequency. Choose one answer. a. True b. False True Question 37 Marks: 1 Which of the following types of materials are known to reflect sound? Choose one answer. a. rubber tiles b. heavy drapes c. carpets with felt pads d. rugs rubber tiles Question 38 Marks: 1 Continuous exposure to high-level noise is less harmful than intermittent or occasional exposure. Choose one answer. a. True b. False False Question 39 Marks: 1 Dry cotton ear plugs are just as effective against noise control as expensive fitted ear plugs and earmuffs. Choose one answer. a. True b. False False Question 40 Marks: 1 The accumulation or increased concentration of a continuously emitted pollutant is Choose one answer. a. referred to as episodic filtration b. referred to as explosive stockpiling and is potentially a very hazardous situation if left unchecked c. directly proportional to wind speed d. inversely proportional to wind speed inversely proportional to wind speed Question 41 Marks: 1 A hammering type noise often heard in a plumbing system is usually due to Choose one answer. a. a quick-closing valve requiring installation of an air chamber b. vibrations from machines that require rubber mountings or resilient pads c. the high mineral content of flowing water d. low sound transmission loss of plumbing materials a quick-closing valve requiring installation of an air chamber Question 42 Marks: 1 In the United States, the Ringlemann smoke chart consists of how many rectangular charts? Choose one answer. a. three b. four c. five d. six four Question 43 Marks: 1 A primary pollutant is one that is formed in the atmosphere as a result of chemical reactions. Choose one answer. a. True b. False False Question 44 Marks: 1 Individuals react differently to noise depending on age, sex, and socioeconomic background. Choose one answer. a. True b. False True Question 45 Marks: 1 Air pollution is the presence of in the outside air in amounts that are injurious or detrimental to humans, animals, plants, or property. Choose one answer. a. solids b. gases c. liquids d. all of the above all of the above Question 46 Marks: 1 Stack samples must be collected at the same speed of flow that gases normally pass through the stack. Choose one answer. a. True b. False True Question 47 Marks: 1 The of a sound wave is the energy transferred per unit time (sec) through a unit area normal to the direction of propagation. Choose one answer. b. noise dosimeter c. sound level meter d. sound analyzer sound level meter Question 55 Marks: 1 The first Federal standards for occupational exposure to noise were issued by Choose one answer. a. the Department of Transportation b. the Federal Aviation Administration c. the Department of Housing and Urban Development d. the Department of Labor the Department of Labor Question 56 Marks: 1 The concentration resulting from a continuous emission of a pollutant is directly proportional to wind speed. Choose one answer. a. True b. False False Question 57 Marks: 1 A primary pollutant is Choose one answer. a. one that is formed in the atmosphere as a result of reactions such as hydrolysis, oxidation, and photochemistry b. one that is found in the atmosphere due to natural reactions c. one that is found in the atmosphere in the same form as it exists d. none of the above one that is found in the atmosphere in the same form as it exists Question 58 Marks: 1 involves the chemistry, physics, and dynamics of the atmosphere and includes many direct effects of the atmosphere on the earth's surface, ocean, and life. Choose one answer. a. topography b. meteorology c. micrometeorology d. none of the above meteorology Question 59 Marks: 1 The effects of air pollution are influenced by Choose one answer. a. wind speed, and direction b. sunlight c. precipitation d. all of the above all of the above Question 60 Marks: 1 Which of the following are not major sources of sulfur dioxide pollution? Choose one answer. a. metal smelters b. coal and oil burning power plants c. refineries d. electrical substations electrical substations Question 61 Marks: 1 In general terms, it is safe to assume that any two identical sound levels will have the effect of increasing the overall level by 10 dB. Choose one answer. a. True b. False False Question 62 Marks: 1 Halon-1301 is used primarily in . Choose one answer. a. portable fire suppression systems b. fixed fire suppression systems c. precision cleaning processes d. plastic foam blowing fixed fire suppression systems Question 63 Marks: 1 Sounds with a frequency of 30 hertz (Hz) are considered very low pitch. Choose one answer. a. True b. False True Question 64 Marks: 1 The major factors related to hearing loss are Choose one answer. a. time duration of exposure and repeated impact b. intensity of sound waves c. frequency content of sound d. all of the above all of the above Question 65 Marks: 1