CSCS Ireland Noise and Vibration 3

Question 1

Under Irish regulations, when must employers arrange health surveillance for workers exposed to noise?

Accepted Answer

When workers are regularly exposed at or above the upper noise exposure action value of 85 dB(A)

Answer

Only when a worker makes a formal complaint about their hearing

Answer

Every five years for all construction workers regardless of exposure

Answer

Only following a reported workplace accident involving noise

Question 2

Which measure is the most effective engineering control for reducing hand-arm vibration exposure from tools?

Accepted Answer

Selecting and using low-vibration tools and maintaining them in good condition

Answer

Providing anti-vibration gloves to all workers

Answer

Reducing the working week to three days

Answer

Wearing additional layers of clothing on the arms

Question 3

What should a construction worker do if they notice their fingers turning white or becoming numb after using vibrating tools?

Accepted Answer

Report the symptoms to their supervisor and seek medical advice promptly

Answer

Continue working as mild numbness is a normal side effect

Answer

Run cold water over the affected fingers to restore circulation

Answer

Increase their grip on the tool to improve blood flow

Question 4

Which work practice most effectively reduces total hand-arm vibration exposure during a working shift?

Accepted Answer

Limiting the duration of vibrating-tool use and rotating workers between vibrating and non-vibrating tasks

Answer

Using tools at full power continuously to complete tasks faster

Answer

Increasing grip pressure to reduce vibration felt in the hands

Answer

Using older, heavier tools that absorb more vibration internally

Question 5

What does the abbreviation HAV stand for in Irish construction health and safety?

Accepted Answer

Hand-Arm Vibration

Answer

Hazardous Amplitude Variation

Answer

Health Assessment Value

Answer

High-Amplitude Vibration

Question 6

Which Irish authority is responsible for enforcing noise and vibration regulations on construction sites?

Accepted Answer

The Health and Safety Authority (HSA)

Answer

The Environmental Protection Agency (EPA)

Answer

The Health Service Executive (HSE)

Answer

The Department of Enterprise, Trade and Employment

Question 7

What is the correct role of anti-vibration gloves in a hand-arm vibration control programme?

Accepted Answer

They offer only a minor reduction in vibration and must not replace engineering or administrative controls

Answer

They eliminate hand-arm vibration and make all other controls unnecessary

Answer

They provide complete protection from HAVS if worn correctly

Answer

They are required by law for all workers using vibrating tools