CSCS Mock Test for Operatives – Full 50 Questions 2025

This CSCS Mock Test for Operatives contains 50 questions with answers. Take this practice test to familiarize yourself with the types of questions asked in the actual health, safety, and environment (HS&E) test. This CSCS Operative Mock Test will surely boost your confidence and help you pass the actual test on the first attempt!

1. You need to walk through sludge at the bottom of a confined space. Which of these is not a hazard?

The release of flammable gases

The release of oxygen

The release of toxic gases

Slips and trips

2. What should you do if you encounter a hazardous material on site?

Ignore it and continue working

Try to clean it up without assistance

Assume it’s safe unless otherwise indicated

Inform your supervisor and follow the safety procedures

3. What does this sign mean?

Overhead Crane Sign

Construction work in progress

Do not hangs weight

Overhead crane

None of these

4. When should you use a ladder instead of a scaffold?

When the job is quick and requires less space

When working at heights over 6 meters

When a scaffold is too expensive

When you are in a confined space

5. Why are guard rails installed around the top of an excavation?

To stop the sides of the trench from collapsing

To prevent toxic gases from accumulating at the bottom of the trench

To stop rainwater from flowing into the trench

To protect people from falling into the trench and getting injured

6. What does PPE stand for?

Private Protection Equipment

Professional Personal Equipment

Personal Protective Equipment

Proper Personal Equipment

7. How should you pick up a load that is heavier on one side than the other?

With the heavy side on your weak arm

With the heavy side towards you

With the heavy side away from you

With the heavy side on your strong arm

8. Which of the following practices is considered good for the environment?

Leaving skips uncovered in wet weather

Poor storage of materials, causing pollution

Segregating waste into different types

Over-ordering materials

9. Where should a mobile tower scaffold not be used?

A smooth concrete path

An asphalt road

Soft or uneven ground

A paved patio

10. What is the main danger of working in a confined space with poor ventilation?

High levels of noise

Build-up of toxic gases or lack of oxygen

Limited communication with others

Lack of lighting

11. Which of the following indicates poor organization of site transport?

Barriers separating pedestrians from mobile plant and vehicles

Clearly marked speed limits

One-way traffic systems

Pedestrians and mobile plant sharing the same routes

12. What is the most effective way to prevent slips, trips, and falls on-site?

Only walk on smooth surfaces

Wear comfortable shoes

Keep walkways clear of debris and obstacles

Ignore small puddles and spills

13. What level of noise exposure requires the use of hearing protection on-site?

70 dB

80 dB

85 dB

90 dB

14. What does COSHH stand for?

Control of Safety and Health Hazards

Conditions of Safety for Hazardous Sites

Control of Special Hazardous Substances

Control of Substances Harmful to Health

15. Which of the following is the most accurate statement about asbestos?

It is only dangerous when found in large amounts

Asbestos exposure is harmless if you only encounter it once

Asbestos is only a concern in buildings constructed after 2000

All types of asbestos are equally hazardous

16. Which of the following substances is most likely to cause occupational asthma?

Asbestos fibers

Silica dust

Wood dust

Cement powder

17. What does this symbol indicate?

Wear hearing protection sign

Caution, noisy machinery

Don’t play song while working

Hearing protection is mandatory

No personal stereos or MP3 players

18. What is the purpose of personal protective equipment (PPE)?

To look professional on-site

To comply with company policies

To protect you from health and safety risks

To keep your clothes clean

19. Cement bags have an additive to help prevent allergic dermatitis. When using a new bag, what should be checked?

It has been stored in a dry place

The bag is undamaged

The ‘use by’ date has not expired

The contents are not hard and gone off

20. When is it appropriate to use a fire extinguisher?

When the fire is too large to control

When the building is evacuated

Only if you’re trained in using it

Only if the fire is in its early stages and it’s safe to do so

21. When digging, if you notice the soil gives off a strange smell, this is likely to mean:

The soil has been excavated before

The soil contains a lot of clay

The ground could be contaminated

The ground has been used to grow crops in the past

22. What should you do first if you hear the fire alarm while working on-site?

Turn off all equipment before evacuating

Gather your personal belongings immediately

Evacuate immediately via the nearest designated escape route

Check if the alarm is a drill

23. Which of the following does not need to be recorded in the accident book?

Your home address

Your national insurance number

The date and time of your accident

Details of your injury

24. If someone burns their hand, the best thing you can do is:

Apply barrier cream or Vaseline to the burn

Cover the burn with a handkerchief

Place the hand in cold water or under a cold running tap

Encourage them to continue working to exercise the hand

25. If you need to move a heavy load manually, what should you check before lifting?

The color of the packaging on the load

Whether the load has sharp edges

If the load can be dragged instead of lifted

The weight, shape, and how best to grip the load

26. What is required when using a hand tool or power tool on site?

It must be bought from a builders merchant

It must be the right tool for the job and inspected before you use it

It must be made in the UK

It must be the right tool for the job and inspected at the start of each week

27. What is the most effective way to ensure a ladder is secure and will not slip?

Tie it at the top

Tie it at the bottom

Ask someone to stand with their foot on the bottom rung

Wedge the bottom of the ladder with blocks of wood

28. What does vibration white finger or hand-arm vibration syndrome (HAVS) indicate?

A serious skin condition that will not clear up

Severe frostbite

A mild skin rash that will go away

A sign that your hands and arms have or are on the way to being permanently damaged

29. Exposure to various types of dust and fumes at work over time can lead to the development of:

Occupational dermatitis

Sore throat

Occupational lung disease

Skin cancer

30. If you are in a confined space and the oxygen level drops, what could happen?

Your hearing could be affected

You might get dehydrated

There is a high risk of fire or explosion

You could become unconscious

31. What is the correct way to lift a heavy object?

Lift quickly to avoid injury

Bend at the waist and lift with your back

Bend your knees and keep the object close to your body

Use only your arms to lift

32. If you think that the mobile plant is operating too close to your work area, what is the first thing you should do?

Stop work and speak to your own supervisor

Keep a good lookout for the plant and continue working

Stop work and speak to the plant operator

Stop work and speak to the plant operator’s supervisor

33. What is the first action you should take if you suspect someone has suffered an electric shock?

Call an ambulance immediately

Move the person away from the source of electricity

Turn off the power supply, if safe to do so

Begin CPR immediately

34. What does this sign indicate?

Fragile Roof Sign

Glass roof

Load-bearing roof

Fragile roof

Slippery floor

35. Which of the following is least likely to cause lung disease?

Silica dust

Bird droppings

Asbestos

Strong smells

36. What are the two conditions for being able to operate plant on site?

You must hold a full driving licence

You must be trained and competent

You must be authorised

You must hold a UK passport

37. Which of the following statements about using power tools while wearing gloves is false?

Gloves will protect you from cuts and abrasions

Anti-vibration gloves will protect you against the effects of vibration

Gloves provide a better grip so you don’t need to grip too tightly, which reduces the effects of vibration

Gloves will keep your hands warm and dry, which reduces the effects of vibration

38. What type of fire extinguisher should be used on an electrical fire?

Water extinguisher

Foam extinguisher

Wet chemical extinguisher

Carbon dioxide (CO2) extinguisher

39. What is the most effective method to prevent yourself from falling off the edge while working on a flat roof?

Use red and white tape to mark the edge

Ask a colleague to monitor and alert you if you approach the edge

Install a guard-rail and toe-board around the edge

Place a large warning sign near the edge

40. What is the correct procedure if a hazardous substance is spilled in your work area?

Continue working as normal until someone else cleans it up

Immediately wipe it up with a disposable cloth

Contain the spill and report it to your supervisor

Evacuate the area and wait for an emergency response team

41. What should you do if you notice a cut in the outer covering of an extension cable?

Report the fault and ensure the cable is not used by anyone

Wrap electrical tape around the damaged area

Check if the copper wires are exposed and continue using the cable if they are not

Replace the fuse in the cable plug with a larger one

42. If you don’t understand something during a site induction, what should you do?

Attend another site induction

Wait until the end and then ask your colleague to explain

Ask the presenter to explain the point again

Guess what the presenter was trying to tell you

43. What is the best way to protect your long-term health from harmful dust when drilling, cutting, sanding, or grinding?

Use dust extraction or wet cut and wear light eye protection

Wear a FFP3-rated dust mask and impact goggles

Wear any disposable dust mask, hearing protection, and impact goggles

Use dust extraction or wet cut, wear a FFP3-rated dust mask, hearing protection, and impact goggles

44. To prevent rats from being attracted to the site, everyone should:

Ask the local authority to put down rat poison

Only put food and drink rubbish in the bins provided

Throw food scraps over the fence or hoarding

Buy rat traps and place them around the site

45. Why should a ladder not be painted?

The paint may conceal any damaged parts

The paint could damage the metal parts of the ladder

The paint could make it slippery to use

It will require frequent re-painting

46. If there is sludge at the bottom of a confined space, you should:

Throw an object into the sludge to estimate its depth

Enter the space and step into the sludge to determine its depth

Wear a disposable facemask before entering the space

Ensure you have proper respiratory protective equipment (RPE) and the necessary training before entering

47. Why is it better to use battery-powered tools instead of electrical ones?

They do not require testing or servicing

They are cheaper to operate

They eliminate the risk of electric shock

They do not cause hand-arm vibration

48. What does a toolbox talk involve?

A discussion on where to purchase tools

Your initial training session upon arrival at the site

A brief training session on a specific safety topic

A sales presentation by a tool supplier

49. A prohibition notice has been issued for the entire site. What does this mean for you?

You can finish what you are doing and then go home

You can continue working because it has nothing to do with you

You must stop work because the site is unsafe

You are not allowed to use any power tools

50. What is required when using a hand tool or power tool on site?

It must be bought from a builders merchant

It must be the right tool for the job and inspected before you use it

It must be made in the UK

It must be the right tool for the job and inspected at the start of each week

Question 1 of 50

CSCS Operative Test 3