CITB Hazardous Substances (COSHH)

Question 1

What does COSHH stand for?

Accepted Answer

Control of Substances Hazardous to Health

Answer

COSHH stands for the Control of Substances Hazardous to Health Regulations 2002. These regulations require employers to assess and control exposure to hazardous substances in the workplace, including chemicals, dust, fumes, and biological agents.

Question 2

What is a Safety Data Sheet (SDS) and when should you consult one?

Accepted Answer

A document from the substance manufacturer detailing hazards, safe handling, and emergency measures

Answer

A Safety Data Sheet (SDS) is provided by the manufacturer or supplier of a hazardous substance. It contains 16 sections covering identification, hazards, composition, first aid, handling, storage, exposure controls, and disposal. It is essential for COSHH assessments.

Question 3

Which hazard symbol on a container indicates the substance is toxic?

Accepted Answer

A skull and crossbones

Answer

The skull and crossbones symbol (GHS06) on a red-bordered diamond indicates the substance is acutely toxic and can cause death or serious harm through ingestion, inhalation, or skin contact even in small quantities.

Question 4

What is the primary route of entry for construction dust into the body?

Accepted Answer

Through inhalation into the lungs

Answer

Inhalation is the primary route of entry for construction dust (including silica, wood, and cement dust). Fine particles can penetrate deep into the lungs, causing conditions such as silicosis, COPD, and lung cancer. This is why RPE is critical for dusty tasks.

Question 5

What must an employer do before any work involving a hazardous substance begins?

Accepted Answer

Carry out a COSHH assessment to identify risks and determine control measures

Answer

Under COSHH Regulation 6, employers must carry out a suitable and sufficient assessment of the health risks from hazardous substances before work begins. This assessment determines what control measures are needed to protect workers.

CITB HS&E Operatives Practice Test

CITB HS&E Operatives Practice Test

CITB Hazardous Substances (COSHH)