SMSTS Health and Welfare 3

Question 1

What is the daily hand-arm vibration exposure limit value (ELV) that must not be exceeded under the Control of Vibration at Work Regulations 2005?

Accepted Answer

5.0 m/s²

Answer

2.5 m/s²

Answer

7.5 m/s²

Answer

10.0 m/s²

Question 2

What is the first step in the COSHH hierarchy of controls when dealing with a hazardous substance on a construction site?

Accepted Answer

Eliminate the use of the hazardous substance entirely

Answer

Issue personal protective equipment to all exposed workers

Answer

Implement engineering controls such as local exhaust ventilation

Answer

Provide health surveillance for all workers exposed to the substance

Question 3

Which part of the body is primarily affected by whole-body vibration (WBV) in construction workers operating mobile plant?

Accepted Answer

The lower back and spine

Answer

The hands and wrists

Answer

The respiratory system

Answer

The inner ear and vestibular system

Question 4

How frequently must welfare facilities on a construction site be inspected and maintained under CDM 2015?

Accepted Answer

Regularly and as often as necessary to keep them clean and in good repair

Answer

Once per week as part of the routine site safety inspection

Answer

Monthly as part of the formal health and safety audit

Answer

Only when defects are reported by workers to the site manager

Question 5

What is the primary benefit of occupational health monitoring for construction workers regularly exposed to respirable crystalline silica (RCS) dust?

Accepted Answer

Early detection of respiratory conditions before they become irreversible

Answer

Demonstrating PPE effectiveness to satisfy COSHH audit requirements

Answer

Quantifying cumulative dust exposure for compensation claim purposes

Answer

Confirming that dust suppression equipment is functioning correctly

Question 6

What must a COSHH assessment identify in relation to hazardous substances used on a construction site?

Accepted Answer

The risks from hazardous substances and the control measures needed to prevent harm

Answer

The cost of providing suitable personal protective equipment to workers

Answer

The number of workers who will be exposed to each hazardous substance

Answer

The insurance liability arising from use of each hazardous substance

Question 7

Which of the following is a characteristic symptom of Hand-Arm Vibration Syndrome (HAVS)?

Accepted Answer

Blanching (whitening) of the fingers in cold conditions

Answer

Swelling of the wrists following prolonged vibration exposure

Answer

Chronic coughing caused by vibration-induced dust inhalation

Answer

Progressive hearing loss due to vibration transmitted to the inner ear