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Q) No worker shall be allowed to enter where the noise level exceed the limit.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Worker should not be allowed without Appropriate Protection.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Personal protective equipment shall be worn if the noise is fast.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Personal protective equipment shall be worn if there is single isolated outburst of noise.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Hearing impairment & deafness to unprotected year for an 8 hrs. exposure.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Little risk to unprotected ear for 8 hrs. exposures

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • 115 dB (A)
  • 90 dB (A)
  • 85 dB (A)
Solution

Q) Warning limit of noise.

  • 85 dB (A)
  • 90 dB (A)
  • 115 dB (A)
  • All of the above
Solution

Q) Danger limit of noise.

  • 120 dB (A)
  • 130 dB (A)
  • 140 dB (A)
  • All of the above
Solution

Q) Noise mapping should be made___ of various work places in the mine premises based on the various machines being used in the concerned mines along with____ of individual workmen exposed to noise level____.

  • Statutory/Personal noise dosimetry/85 dB(A)
  • Statutory/Personal noise dosimetry/90 dB(A)
  • Mandatory/Personal noise dosimetry/85 dB(A)
  • All of the above
Solution

Q) Vibration studies of various mining machinery___their introduction in mining operation should be done as per___.

  • Before/ISO standard
  • After/ISO standard
  • Before/DGMS standard
  • Before OEM standard
Solution

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