Safety Quiz On Hearing Conservation Program!

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Quizzes Created: 30 | Total Attempts: 54,439
| Attempts: 1,417 | Questions: 10
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1. 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?

Explanation

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.

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About This Quiz
Safety Quiz On Hearing Conservation Program! - Quiz

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... see morelevel as well as standards. So, let's try out the quiz. All the best!
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2. Noise Induced Hearing Loss (NIHL) can be permanent.

Explanation

NIHL can be permanent depending on many factors, such as length of time exposed to the noise, intensity of the noise, and personal factors.

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3. How can you tell if a noise level is too great?

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.

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4. The intesity of noise is measured in:

Explanation

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.

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5. 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?

Explanation

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.

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6. 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).

Explanation

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.

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7. The Threshold (or Upper Limit) for what is considered a hazardous noise level is:

Explanation

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.

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8. Which of the following earplugs are being worn correctly?

Explanation

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.

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9. With no hearing protection, how many consecutive hours can you work in a noise level of 90dB?

Explanation

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.

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10. Without hearing protection, how long can a concrete chipping operation rated at 97 decibels continue before you are overexposed?

Explanation

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.

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You have been using an impact wrench for 6 consecutive hours with...
Noise Induced Hearing Loss (NIHL) can be permanent.
How can you tell if a noise level is too great?
The intesity of noise is measured in:
You are working in a noise level of 92dB, but are wearing ear...
You are mowing your lawn and use your iPod/headphones to drown out the...
The Threshold (or Upper Limit) for what is considered a hazardous...
Which of the following earplugs are being worn correctly?
With no hearing protection, how many consecutive hours can you work in...
Without hearing protection, how long can a concrete chipping...
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