Noise And Vibration

2.

Hand-arm vibration can cause:

Skin cancer
Skin irritation, like dermatitis
Blisters on your hands and arms
Damage blood vessels and nerves in your fingers and hands

Correct Answer

A. Damage blood vessels and nerves in your fingers and hands

Explanation

Hand-arm vibration can cause damage to blood vessels and nerves in the fingers and hands. This is because prolonged exposure to vibrating tools or machinery can lead to a condition known as hand-arm vibration syndrome (HAVS). HAVS can result in symptoms such as numbness, tingling, and loss of sensation in the affected areas. The vibration can damage the blood vessels, leading to reduced blood flow and potential nerve damage. It is important to take preventive measures and limit exposure to hand-arm vibration to avoid these potential health risks.

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3.

What is vibration white finger?

A mild skin rash that will go away
A serious skin condition that will not clear up
Severe frostbite
A sign of damage to your hands and arms that might not go away

Correct Answer

A. A sign of damage to your hands and arms that might not go away

Explanation

Vibration white finger refers to a condition where damage is caused to the hands and arms due to prolonged exposure to vibrating tools or machinery. It is not just a mild skin rash that will go away, but rather a more serious skin condition that may not clear up completely. The term "vibration white finger" is used to describe the appearance of the fingers turning white due to reduced blood flow. This condition can cause long-term damage and may not completely go away even with treatment.

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4.

Noise over a long time can damage your hearing. Can this damage be reversed?

Yes, with time
Yes, if you have an operation
No, the damage is permanent
Yes, if you change jobs

Correct Answer

A. No, the damage is permanent

Explanation

Exposure to noise over a prolonged period can lead to damage to the auditory system, specifically the delicate hair cells in the inner ear. These hair cells are responsible for transmitting sound signals to the brain. Once these cells are damaged, they do not regenerate or repair themselves. Therefore, the damage caused by noise exposure is generally irreversible and permanent.

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1

5.

Which of these is most likely to cause vibration white finger?

Electric hoist
Hammer drill
Hammer and chisel
Battery-powered screwdriver

Correct Answer

A. Hammer drill

Explanation

A hammer drill is most likely to cause vibration white finger. This is because hammer drills generate high levels of vibration due to their rapid hammering action. Prolonged use of a hammer drill can lead to damage in the blood vessels, nerves, and muscles of the hand, causing vibration white finger. Electric hoists, battery-powered screwdrivers, and hammer and chisel may also cause some vibration, but they are less likely to cause the condition compared to a hammer drill.

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6.

Why is vibration a serious health issue?

There are no early signs
The long-term effects of vibration are not known
There is no way that exposure to vibration can be prevented
Vibration can cause a disabling injury that cannot be cured

Correct Answer

A. Vibration can cause a disabling injury that cannot be cured

Explanation

Vibration can be a serious health issue because it has the potential to cause a disabling injury that cannot be cured. This means that once someone is injured due to excessive vibration exposure, there is no known treatment or remedy to fully recover from the injury. This highlights the severity of the health risks associated with vibration and the importance of taking preventive measures to minimize exposure.

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7.

If you have to use a vibrating tool, how can you help reduce the effects of hand-arm vibration?

Hold the tool tightly
Do the work in short spells
Do the job in one long burst
Only use one hand on the tool at a time

Correct Answer

A. Do the work in short spells

Explanation

Doing the work in short spells helps reduce the effects of hand-arm vibration because it allows for regular breaks, which helps to minimize continuous exposure to the vibrating tool. Taking breaks allows the muscles and tissues in the hands and arms to rest and recover, reducing the risk of developing hand-arm vibration syndrome or other related injuries.

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8.

Noise may be a problem in your work area if you have to shout to be clearly heard by someone who is standing?

2 metres away
4 metres away
5 metres away
6 metres away

Correct Answer

A. 2 metres away

Explanation

If you have to shout to be clearly heard by someone who is standing 2 meters away, it indicates that there is a high level of noise in your work area. This suggests that noise may be a problem in your work area.

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9.

You are less likely to suffer from hand-arm vibration if you are:

Very cold but dry
Cold and wet
Warm and dry
Very wet but warm

Correct Answer

A. Warm and dry

Explanation

Being warm and dry reduces the risk of suffering from hand-arm vibration. Cold temperatures can cause vasoconstriction, reducing blood flow to the extremities and making them more susceptible to vibration-related injuries. Additionally, wet conditions can further increase the risk as moisture can enhance the transmission of vibrations. Therefore, being warm and dry helps to maintain proper blood circulation and minimize the negative effects of hand-arm vibration.

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10.

What are three early signs of vibration white finger?

Temporary loss of feeling in the fingers
The fingertips turn white
A skin rash
Tingling in the fingers
Blisters

Correct Answer(s)

A. Temporary loss of feeling in the fingers
A. The fingertips turn white
A. Tingling in the fingers

Explanation

The three early signs of vibration white finger are temporary loss of feeling in the fingers, the fingertips turning white, and tingling in the fingers. These symptoms are commonly experienced by individuals who are exposed to excessive vibration, such as those who operate vibrating machinery or tools. The temporary loss of feeling in the fingers is caused by the constriction of blood vessels, leading to reduced blood flow. The fingertips turning white is a result of the blood vessels constricting and limiting blood supply to the area. Tingling in the fingers is a sensation caused by nerve damage due to prolonged exposure to vibration.

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Noise And Vibration

If you have to use a vibrating tool, what would you expect your supervisor to do?

Quiz Preview

Hand-arm vibration can cause:

What is vibration white finger?

Noise over a long time can damage your hearing. Can this damage be reversed?

Which of these is most likely to cause vibration white finger?

Why is vibration a serious health issue?

If you have to use a vibrating tool, how can you help reduce the effects of hand-arm vibration?

Noise may be a problem in your work area if you have to shout to be clearly heard by someone who is standing?

You are less likely to suffer from hand-arm vibration if you are:

What are three early signs of vibration white finger?