CSCS Blue Card Mock Test - Full 50 Questions (updated 2025)

This free CSCS mock test includes 50 questions from most of the health and safety topics you need to study for the CSCS Blue Skilled Worker Card. If you’re looking for a career in the UK’s construction industry, you need to pass the CIBT health, safety, and environment (HS&E) test. Take this CSCS Blue Card Mock Test to boost your confidence before the real test.

1. What is the maximum depth that a trench can be excavated without requiring support?

2 meters

0.5 meters

1.2 meters

1 meter

2. What does a COSHH assessment tell you?

Use substances safely.

Assess noise levels properly.

Safely lift heavy loads.

Work safely in a confined space.

3. If a fire occurs on-site, what is the first action you should take?

Attempt to put out the fire yourself.

Wait for the fire brigade to arrive.

Continue working until the fire is under control.

Evacuate the area and raise the alarm immediately.

4. What should you do if you notice exposed wires on a power tool?

Wrap them with tape and continue working.

Use gloves to avoid contact.

Cut the wires to prevent accidents.

Report it, tag it “Do Not Use,” and remove it from service.

5. What is a “safe working load” (SWL)?

The maximum weight a worker can lift.

The weight of the equipment itself.

The maximum load lifting equipment can safely handle.

A guideline for manual handling.

6. What is a “dangerous occurrence” under RIDDOR?

A minor injury requiring first aid.

A near-miss with no injuries.

Equipment theft.

A high-potential incident.

7. When should a site induction take place?

At the end of the first week.

Only for new employees.

Before starting work on the site.

During lunch breaks.

8. A guard is removed from a machine for repair. What should happen next?

Tag the machine “Out of Service” until the guard is replaced.

Continue using the machine carefully.

Assign a worker to watch the machine.

Use the machine only at slow speeds.

9. How many first-aiders are required on a construction site with 50 workers?

10. How should hazardous waste (e.g., asbestos) be disposed of?

In a general waste skip.

Burned in a controlled area.

Buried on site.

Through a licensed waste carrier.

11. What does a blue safety sign indicate?

Mandatory action

Prohibition

Emergency exit

Warning

12. What welfare facilities must a construction site provide?

Toilets, washing facilities, and rest areas.

Sleeping quarters for night shifts.

A cafeteria with free meals.

Gym equipment.

13. When lifting a load, you should:

Bend your back and keep legs straight.

Bend your knees and keep the load close to your body.

Twist your torso while lifting.

Lift quickly to avoid strain.

14. When using a ladder, how should the base be positioned for proper stability?

Directly vertical.

1 unit out for every 4 units up.

1 unit out for every 2 units up.

On uneven ground for stability.

15. What should you do if you notice a damaged ladder on a worksite?

Use it carefully.

Repair it yourself.

Move it to a storage area.

Report it and tag it “Do Not Use.”

16. What is the minimum height at which a working platform requires guardrails?

0.5 meter

1 meter

2 meter

Guardrails are optional.

17. What should you check before using a power tool?

The brand name.

The tool’s weight.

The PAT test date and cable condition.

The color of the handle.

18. What should you do first if someone is electrocuted?

Turn off the power supply.

Pull them away from the source.

Start CPR immediately.

Pour water on them.

19. What is the primary purpose of a silt barrier on a construction site?

Reduce noise.

Support scaffolding.

Prevent soil erosion and water pollution.

Mark hazardous areas.

20. What is the primary risk involved in working in a confined space?

Poor Wi-Fi signal.

Lack of oxygen or toxic fumes.

Slippery surfaces.

Cold temperatures.

21. Which Personal Protective Equipment (PPE) is required for grinding operations?

Hard hat and gloves.

High-vis vest and steel-toe boots.

Safety goggles and ear defenders.

All of the above.

22. What is the safest way to handle heavy materials?

Ask a colleague to lift one end.

Lift them quickly to avoid strain.

Slide them across the floor.

Use mechanical aids like trolleys.

23. When is hearing protection mandatory on a construction site?

When noise exceeds 80 dB(A).

Only when using power tools.

When noise exceeds 85 dB(A).

Hearing protection is optional.

24. What is a “banksman” responsible for?

Controlling vehicle movements on site.

Managing waste disposal.

Supervising scaffolding.

First aid.

25. What is the maximum weight one person should lift alone?

10kg

25kg

50kg

There’s no fixed limit—it depends on the individual.

26. What is the purpose of a site induction?

To introduce workers to the site manager.

To assign tasks for the day.

To collect payroll information.

To ensure workers understand site-specific hazards and rules.

27. You find that the scaffold platform you are about to use is not fully secured. What should you do?

Use the scaffold platform, assuming it’s stable enough.

Report the issue to the site supervisor and do not use it.

Secure the platform yourself before use.

Ask a colleague to check the platform before using it.

28. What does a red circular sign with a white band and crossbar indicate?

Mandatory action

Prohibition

Warning

Fire safety equipment

29. How should you store fuel on-site?

In open containers for easy access.

Buried underground.

Next to electrical equipment.

In labeled, sealed containers away from ignition sources.

30. What does LOLER require for lifting equipment?

Annual insurance checks.

Painting equipment in high-vis colors.

Using equipment only indoors.

Regular inspections by a competent person.

31. A fire breaks out in a container storing paint thinner. Which extinguisher should NOT be used?

Water

Foam

Carbon Dioxide

Dry powder

32. What does RIDDOR require employers to report?

All minor injuries.

Major injuries, deaths, and dangerous occurrences.

Weather delays.

Equipment damage.

33. What should you do if you’re walking near moving plant machinery?

Make eye contact with the operator and stay in their line of sight.

Run to get out of the way quickly.

Wave your arms to attract attention.

Assume the operator sees you.

34. What does PUWER require for work equipment?

Workers must own their tools.

Only new equipment can be used.

Equipment must be replaced yearly.

Equipment must be suitable, maintained, and inspected.

35. Which fire extinguisher is suitable for fires involving wood or paper?

Foam

Water

Carbon Dioxide

Wet chemical

36. A worker suffers a minor cut. How should this be recorded?

In the site’s accident book.

Reported to HSE under RIDDOR.

Only if medical treatment is needed.

Ignored if the worker continues working.

37. What must a risk assessment include?

Only a list of hazards.

Names of workers at risk.

The cost of safety equipment.

Hazards, who might be harmed, and control measures.

38. Who can erect or modify scaffolding on site?

Any trained worker.

The site manager.

A first-aider.

A competent person with scaffolding qualifications.

39. Who is responsible for ensuring your safety on a construction site?

You and your employer.

Only your employer.

The site manager alone.

The Health and Safety Executive (HSE).

40. During demolition work, you uncover material that looks like asbestos. What is the first step?

Continue working but avoid touching it.

Spray it with water to reduce dust.

Evacuate the area and inform the supervisor.

Seal it with plastic sheeting yourself.

41. What is the best way to minimize dust on site?

Sweep dust into a corner.

Use water suppression or extraction systems.

Ignore it if it’s not visible.

Burn the dust.

42. Prolonged exposure to loud noise can cause:

Skin irritation.

Respiratory issues.

Permanent hearing loss.

Eye strain.

43. When must a near-miss incident be reported?

Only if someone is injured.

At the end of the shift.

During weekly safety meetings.

Immediately, regardless of injury.

44. What is the first step if you’re exposed to a harmful chemical?

Continue working and report it later.

Cover the area with clothing.

Dispose of the chemical immediately.

Wash the affected area with water and seek first aid.

45. How many first-aiders are required on a construction site with 20 workers?

46. How often should drinking water be provided on a construction worksite?

Once a day.

Only during summer.

Accessible at all times.

When requested by workers.

47. What color are emergency exit signs?

Red with white text.

Green with white text.

Blue with white text.

Yellow with black text.

48. What does a COSHH assessment focus on?

Fire risks.

Equipment maintenance schedules.

Noise levels.

Risks from hazardous substances

49. What does a yellow triangle sign signify?

Mandatory PPE.

Emergency exit.

Warning of a hazard.

First-aid station.

50. What is the maximum permitted gap between scaffold boards?

10mm

25mm

50mm

No limit

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