CSCS MCQ 2

Question 1

What is the minimum height at which edge protection (guardrails) must be provided on a construction site scaffold?

Accepted Answer

2 meters

Answer

Under Work at Height Regulations, edge protection must be provided when working at 2 meters or more above ground level.

Question 2

A co-worker is using a circular saw without blade guards fitted. What should you do first?

Accepted Answer

Stop the worker immediately and report to the supervisor

Answer

Missing machine guards are an immediate danger; stop the unsafe work and report it to a supervisor right away.

Question 3

Which type of fire extinguisher is SAFE to use on an electrical fire?

Accepted Answer

CO2 (black)

Answer

CO2 extinguishers (black label) are non-conductive and safe for use on live electrical equipment.

Question 4

What does a blue and white safety sign on a construction site indicate?

Accepted Answer

Mandatory — action must be taken

Answer

Blue circular signs are mandatory signs that require specific behavior, such as wearing PPE.

Question 5

Before excavating near underground services, a worker should FIRST:

Accepted Answer

Obtain up-to-date service drawings and use a CAT scanner

Answer

Always obtain current service drawings and use a cable avoidance tool (CAT) before any excavation to locate buried utilities.

CSCS - Construction Skills Certification Scheme Practice Test