Noise Pollution

1. 1The estimated number of americans who have suffered full or partial hearing loss as a result of excessive noise is

   1. A6 million
   2. B8 million
   3. C10 million
   4. D12 million
2. 2Most concerns about noise as a pollutant have focused on the

   1. Ahome
   2. Bschool
   3. Ccommunity
   4. Dworksite
3. 3The noise most frequently considered as annoying by community residents is from

   1. Aaircraft
   2. Bvehicles
   3. Cmachinery
   4. Dneighbors
4. 4In general, noise levels are directly related to the

   1. Apopulation density
   2. Bproximity of airports
   3. Cnumber of boom boxes sold
   4. Dindustrialization of an area
5. 5The major source of excessive community noise is

   1. Aindustry
   2. Bairports
   3. Cmachinery
   4. Dneighbors
6. 6Which one of the following sources of noise has been declining slightly in recent years?

   1. Amotorcycle
   2. BAutomobile
   3. Caircraft
   4. Dindustrial
7. 7A given individual will most easily tolerate noise when

   1. Athe source of the noise in inevitable
   2. Bthe individual is the source of the noise
   3. Cthe source of the noise is from construction
   4. Dthe individual feels nothing can be done about it
8. 8Which of the following is considered by many to be the most insidious type of pollution?

   1. Awater
   2. Bland
   3. Cnoise
   4. Dair
9. 9The louder the sound, the greater the

   1. Afrequency
   2. Bamplitude
   3. Cpitch
   4. Dtimbre
10. 10The measure that is used to determine the loudness of a sound is

    1. Ahertz
    2. Bdecibel
    3. Cfrequency
    4. Damplitude

11. 11Maximum sensitivity to sound for humans is in the range of

    1. A500-1,000 cps
    2. B1,000-5,000 cps
    3. C5,000-10,000 cps
    4. D10,000-15,000 cps
12. 12It is estimated that the number of Americans who are exposed daily to noise that has the potential to damage their hearing is

    1. A5 million
    2. B15 million
    3. C10 million
    4. D20 million
13. 13Hearing loss that lasts a few hours following exposure to excessive noise is referred to as

    1. Asensorineural loss
    2. Btemporary threshold shift
    3. Cconductive loss
    4. Dnoise induced hearing loss
14. 14Slight, irreversible hearing loss may result for many people, from daily exposure over an 8 hour period of time to sound averaging

    1. A55 dB
    2. B65 dB
    3. C75 dB
    4. D85 dB
15. 15The amount of time required to produce permanent damage to hearing is cut in half with an increase in sound of

    1. A3 dB
    2. B5 dB
    3. C7 dB
    4. D9 dB
16. 16The first type of hearing sensitivity to become damaged as a result of excessive noise exposure is sensitivity to

    1. Alow frequencies
    2. Bmiddle frequencies
    3. Cspeech level frequencies
    4. Dhigh frequencies
17. 17Loss of hearing to the extent that low frequency sounds are distorted or can't be heard is considered

    1. Atemporary threshold shift
    2. Bsensorineural loss
    3. Cconductive loss
    4. Dnoise induced hearing loss
18. 18Hearing loss that results from infections or trauma is

    1. Aconductive loss
    2. Bsensorineural loss
    3. Ctemporary threshold shift
    4. Dnoise induced hearing loss
19. 19By age 65, the number of Americans who experience hearing loss sufficient to affect communication is

    1. A1 in 2
    2. B1 in 3
    3. C1 in 4
    4. D1 in 5
20. 20Age related hearing loss is referred to as

    1. Apresbycusis
    2. Bpreemptive threshold shift
    3. Cpresbyopia
    4. Dpredysplasia
21. 21A constant buzzing or ringing in the ears is called

    1. Asensorineural impact
    2. Btinnitus
    3. Cthreshold abridgment
    4. Dotitis media
22. 22Th ehearing baility of a fetus ios well developed by the

    1. A18th week of gestation
    2. B22th week of gestation
    3. C26th week of gestation
    4. D28th week of gestation
23. 23Which one of the following seems to have the most impact on a childs reading skills?

    1. Aparental educational background
    2. Bnoisy home environment
    3. Cchilds grade in school
    4. Dnumber of children in the family
24. 24Which one of the following statements is false?

    1. Anoise can affect one's perception of time
    2. Bnoise can increase variability of work performance
    3. Cnoise affects quantity of work done
    4. Dnoise makes it more difficult to remain alert
25. 25Which one of the following statements is true?

    1. Ahealthy individuals are more affected by noise than ill persons
    2. BAdults are wakened by noise more easily than children
    3. Cmiddle-aged individuals are more sensitive to noise than are elderly persons
    4. Dmen are more easily disturbed by noise than women
26. 26The first national law in the united states designed to deal with noise was the

    1. AQuiet communities act
    2. BNoise control act
    3. CNoise abatement act
    4. DEnvironmental noise pollution act
27. 27The pitch of a sound is primarily determined by

    1. Afrequency
    2. Bwavelengths
    3. Csounds pressure
    4. Dall of the above
28. 28The distance that a sound wave travels in one cycle or period is the

    1. Asound intensity
    2. Bwavelength of a sound
    3. Csound pressure
    4. Dfrequency
29. 29The speed with which sound travels through a particular medium is dependent on

    1. Asound intensity
    2. Bthe density of the medium
    3. Cthe compressibility and density of the medium
    4. Dnone of the above
30. 30A dimensionless uniy to express physical intensity or sound pressure levels is called

    1. Anoise level
    2. Bdecibel
    3. Chertz
    4. Dsound pressure level (SPL)
31. 31The _____ of a sound wave is the energy transferred per unit time (sec) through a unit area normal to the direction of propagation

    1. Asound pressure
    2. Bfrequency
    3. Cintensity
    4. Dspeed
32. 32If 10 decibels is 10 times more intense than 1 decibel, how many more times more intense is 20 decibels than 1 decibel?

    1. A20
    2. B30
    3. C100
    4. D1,000
33. 33The unit of measurement most commonly used to measure loudness is called

    1. Adecibel
    2. Bphon
    3. Chertz
    4. Dnone of the above
34. 34The major factors related to hearing loss are

    1. Atime duration of exposure and repeated impact
    2. Bintensity of sound waves
    3. Cfrequency content of sound
    4. Dall of the above
35. 35For workers, a sound level above ___ dBA should be considered unsafe for daily exposure over a period of months

    1. A80
    2. B85
    3. C90
    4. Dall of the above
36. 36The most common type of noise measurement device used for initial surveys to provide rapid evaluation and identification of potential problem areas us the

    1. Aoctave-band analyzer
    2. Bnoise dosimeter
    3. Csound level meter
    4. Dsound analyzer
37. 37It is possible to control noise

    1. Aat the source
    2. Bin its path of transmisison
    3. Cwhere it is received
    4. Dall of the above
38. 38Which of the following types of materials are known to reflect sound?

    1. Arubber tiles
    2. Bheavy drapes
    3. Ccarpets with felt pads
    4. Drugs
39. 39The radio of the energy passing through a wall, floor, or ceiling to the energy striking it is called

    1. Asound absorption
    2. Bsound transmission loss
    3. Cnoise reduction
    4. Dnone of the above
40. 40The first federal standards for occupational exposure to noise were issued by

    1. AThe department of Transportation
    2. BThe federal aviation administration
    3. CThe department of housing and urban development
    4. DThe department of Labor
41. 41Sounds with frequency of 30 Hz are considered very low pitch

    1. ATrue
    2. BFalse
42. 42The frequency of a sound determines its pitch

    1. ATrue
    2. BFalse
43. 43In 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

    1. ATrue
    2. BFalse
44. 44Almost all sound contains multiple frequencies

    1. ATrue
    2. BFalse
45. 45Continuous exposure to high-level noise is less harmful than intermittent or occasional exposure

    1. ATrue
    2. BFalse
46. 46Individuals react differently tp noise depending on age, sex, and socioeconomic background

    1. ATrue
    2. BFalse
47. 47Dry cotton ear plugs are just as effective against noise control as expensive fitted ear plugs and earmuffs

    1. ATrue
    2. BFalse
48. 48The amount of sound energy a material can absorb is a function of its absorption coefficient at a specified frequency

    1. ATrue
    2. BFalse
49. 49Sound absorbing materials absorb low frequency sounds much more effectively than high frequency sounds

    1. ATrue
    2. BFalse

Descrição

REHS Noise Pollution Quiz sobre Noise Pollution, criado por Elizabeth Magill em 22-08-2022.

Autor

Elizabeth Magill

Idioma

English

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