CSCS Electrical Safety 1

Question 1

What is the standard voltage for most hand-held power tools used on UK construction sites?

Accepted Answer

110V

Answer

110V centre-tapped to earth (CTE) is the standard for portable tools on construction sites because it limits the potential shock voltage to 55V to earth.

Question 2

What color are 110V step-down transformers typically painted on UK construction sites?

Accepted Answer

Yellow

Answer

110V transformers on construction sites are painted yellow so workers can immediately identify them as the correct, safer voltage supply.

Question 3

Before using any electrical equipment on a construction site, what should you check first?

Accepted Answer

The PAT test label and physical condition of the equipment

Answer

A valid PAT test sticker confirms the equipment has been formally tested, and a visual check for damage ensures it is safe to use before you start.

Question 4

What does PAT stand for in the context of electrical safety on construction sites?

Accepted Answer

Portable Appliance Testing

Answer

PAT stands for Portable Appliance Testing, a formal process of checking portable electrical equipment to ensure it is safe to use.

Question 5

Which regulation specifically governs electrical safety in the workplace in the UK?

Accepted Answer

Electricity at Work Regulations 1989

Answer

The Electricity at Work Regulations 1989 impose a duty on employers to ensure all electrical systems are constructed and maintained so as to prevent danger.

CSCS - Construction Skills Certification Scheme Practice Test

CSCS - Construction Skills Certification Scheme Practice Test

CSCS Electrical Safety 1