Safety Quiz On Hearing Conservation Program!
Hearing conversation program is conducted to minimize the hearing loss due to noise pollution. The main objective of this program is to spread and preach knowledge about hearing loss and noise exposure. This quiz has been created to test your knowledge and make you aware of the noise control and level as well as standards. So, let's try out the quiz. All the best!
- 1.
How can you tell if a noise level is too great?
- A.
The noise hurts your ears.
- B.
You must shout over a short distance to be heard.
- C.
You have difficulty hearing a few hours after exposure to the noise.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
All of the above. If the noise hurts your ears, it indicates that the noise level is too great. Similarly, if you have to shout over a short distance to be heard, it suggests that the noise level is too high. Additionally, if you have difficulty hearing a few hours after being exposed to the noise, it indicates that the noise level was too great. Therefore, all of these factors together can be used to determine if a noise level is too great.Rate this question:
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- 2.
The intesity of noise is measured in:
- A.
Amplitude
- B.
Frequency
- C.
Decibels
- D.
Wavelength
Correct Answer
C. DecibelsExplanation
The intensity of noise is measured in decibels. Decibels (dB) is a unit used to quantify the level of sound. It is a logarithmic scale that measures the ratio of the sound pressure level to a reference level. The higher the decibel level, the louder the noise. Decibels are commonly used in various fields such as acoustics, engineering, and environmental science to assess and control noise levels.Rate this question:
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- 3.
The Threshold (or Upper Limit) for what is considered a hazardous noise level is:
- A.
80dB
- B.
85dB
- C.
90dB
- D.
95dB
Correct Answer
B. 85dBExplanation
The correct answer is 85dB. The threshold for what is considered a hazardous noise level is typically set at 85dB. This is because prolonged exposure to noise levels at or above 85dB can cause hearing damage or loss. It is important to take precautions such as wearing hearing protection in environments where noise levels exceed this threshold.Rate this question:
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- 4.
Without hearing protection, how long can a concrete chipping operation rated at 97 decibels continue before you are overexposed?
- A.
2 Hours
- B.
3 Hours
- C.
4 Hours
- D.
5 Hours
Correct Answer
B. 3 HoursExplanation
The correct answer is 3 hours. This means that without hearing protection, a person can be exposed to a concrete chipping operation rated at 97 decibels for up to 3 hours before being considered overexposed.Rate this question:
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- 5.
You are mowing your lawn and use your iPod/headphones to drown out the noise. By doing this, you have _____ your risk of Noise Induced Hearing Loss (NIHL).
- A.
Increased
- B.
Decreased
- C.
Had no effect.
- D.
Cancelled out.
Correct Answer
A. IncreasedExplanation
By playing your music loud enough to drown out the noise of the lawn mower, you have increased your risk of NIHL by adding to the sound of the mower. Music headphones are never as effective as hearing protection.Rate this question:
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- 6.
With no hearing protection, how many consecutive hours can you work in a noise level of 90dB?
- A.
8 Hours
- B.
6 Hours
- C.
4 Hours
- D.
3 Hours
Correct Answer
A. 8 HoursExplanation
The correct answer is 8 hours. This is because exposure to a noise level of 90dB for more than 8 hours can cause hearing damage. The Occupational Safety and Health Administration (OSHA) recommends a maximum exposure limit of 90dB for 8 hours. Beyond this limit, the risk of hearing loss increases. Therefore, it is important to use hearing protection or take breaks to limit the duration of exposure to high noise levels.Rate this question:
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- 7.
You have been using an impact wrench for 6 consecutive hours with no hearing protection. The impact wrench creates a noise level of 108dB. Have you been overexposed?
- A.
Yes
- B.
No
Correct Answer
A. YesExplanation
Yes, you have been overexposed. The noise level of 108dB from the impact wrench is considered to be very high and prolonged exposure to such noise levels can cause damage to the ears. Since you have been using the impact wrench for 6 consecutive hours with no hearing protection, it is highly likely that you have been overexposed to the noise and may have suffered damage to your hearing.Rate this question:
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- 8.
You are working in a noise level of 92dB, but are wearing ear plugs with a Noise Reduction Rating (NRR) of 23dB. Can you work for 8 hours in this environment?
- A.
Yes
- B.
No
Correct Answer
A. YesExplanation
Yes, you can work for 8 hours in this environment. The Noise Reduction Rating (NRR) of the ear plugs indicates the amount of noise they can block. In this case, the ear plugs have an NRR of 23dB, which means they can reduce the noise level by 23dB. Therefore, the effective noise level for the person wearing the ear plugs would be 92dB - 23dB = 69dB. As long as the person can tolerate working in a noise level of 69dB for 8 hours, they can work in this environment.Rate this question:
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- 9.
Noise Induced Hearing Loss (NIHL) can be permanent.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
NIHL can be permanent depending on many factors, such as length of time exposed to the noise, intensity of the noise, and personal factors.Rate this question:
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- 10.
Which of the following earplugs are being worn correctly?
- A.
A
- B.
B
- C.
C
- D.
All of the above.
Correct Answer
C. CExplanation
Photo C demonstrates the correct way to wear your ear plugs. Not having the ear plug inserted correctly will decrease its Noise Reduction Rating and ability to protect your hearing.Rate this question:
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.webp "You have been using an impact wrench for 6 consecutive hours with no hearing protection. The impact wrench creates a noise level of 108dB. Have you been overexposed?")
.webp "Which of the following earplugs are being worn correctly?")
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Jul 24, 2024Quiz Edited by
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Oct 03, 2008Quiz Created by
Kiewitsafe
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