NG2 S1recap on S2

What is the lower exposure action value for daily or weekly personal noise exposure?

• 80 dB(A)
• 90 dB(A)
• 85 dB(A)
• 75 dB(A)

Which of the following is NOT a physical health effect of noise exposure?

• Noise induced hearing loss
• Temporary threshold shift
• Tinnitus
• Insomnia

What does the term 'A-weighting' refer to in noise measurement?

• Noise measured at the frequency that human hearing is most sensitive
• Noise measured at low frequencies
• Noise measured for impulse sounds
• Noise measured at all frequencies

What is the upper exposure action value for peak sound pressure in impulse noise?

• 137 dB(C)
• 142 dB(C)
• 135 dB(C)
• 140 dB(C)

Which of the following is a basic noise control measure at the source?

• Isolation
• Acoustic haven
• Absorption
• Damping

What is the primary purpose of audiometry in health surveillance for noise exposure?

• To determine noise frequency
• To calibrate hearing protection
• To measure ambient noise levels
• To identify workers with hearing damage

What does HAVS stand for in the context of vibration exposure?

• Heightened Acoustic Vibration Sensitivity
• High Amplitude Vibration Syndrome
• Hand-Arm Vibration Syndrome
• Hazardous Audio-Visual Symptoms

Which of the following is NOT an effect of whole-body vibration?

• Damage to spinal discs
• Joint damage
• Vertigo
• Vibration white finger

What is the Daily Exposure Action Value (EAV) for hand-arm vibration?

• 1.5 m/s²
• 2.0 m/s²
• 2.5 m/s²
• 3.0 m/s²

Which of the following is NOT a factor in determining vibration 'dose'?

• Vibration magnitude
• Type of equipment
• Eight hour equivalent magnitude A(8)
• Duration of exposure