FREE PRACTICE TEST 31

CSCS Mock Test 31: 50 Questions

Practice the format people commonly call the “CSCS test”. The official assessment is the CITB Health, Safety & Environment Operatives test: 50 questions in 45 minutes with a 45/50 pass mark.

50 questions45 minutes45/50 targetInstant explanationsBalanced Site-Safety Revision

Important: This is an independent FastQual practice test, not an official CITB test or official CITB question bank. Use it alongside current official revision materials.

45:00

Answered 0/50

Question 1 of 50High risk activities

Why must demolition work be carefully planned?

A. Planning is only required for tall buildingsB. Only noise needs controllingC. Demolition is safe once windows are removedD. Structures can become unstable and hazards such as services and hazardous materials must be controlled

Correct answer: D. Demolition can create collapse, falling material, service, dust and hazardous-material risks.

Question 2 of 50Occupational health

Why is asbestos dangerous?

A. It only causes skin irritationB. It always catches fireC. Airborne fibres can cause serious diseases many years after exposureD. It causes instant electrical shock

Correct answer: C. Inhaled asbestos fibres can cause fatal lung diseases with long latency periods.

Question 3 of 50Working environment

Why is clear communication important when several trades work in the same area?

A. It removes the need for permitsB. It helps coordinate hazards and prevents conflicting activitiesC. It allows each trade to ignore the othersD. It means PPE is no longer required

Correct answer: B. Coordination reduces risks created by simultaneous or overlapping work activities.

Question 4 of 50Working environment

Why should materials be stored securely and tidily?

A. To reduce collapse, trip and access risksB. Only to improve photographs of the siteC. So workers can climb on themD. To avoid using storage racks

Correct answer: A. Stable, organised storage helps prevent falling materials, blocked routes and manual handling problems.

Question 5 of 50High risk activities

Who should give standard signals to a crane or plant operator during a lifting operation?

A. Only the delivery driverB. Any worker nearbyC. A designated competent signaller/banksman where requiredD. The newest worker

Correct answer: C. Clear communication through a designated competent signaller helps prevent conflicting instructions.

Question 6 of 50Occupational health

What should you do before using a hazardous substance you have not used before?

A. Smell it to identify the hazardB. Mix it with waterC. Check the assessment, label/SDS and required controlsD. Use it outdoors without further checks

Correct answer: C. You should understand the hazards, exposure routes and controls before use.

Question 7 of 50High risk activities

Why are toe boards fitted to many work platforms?

A. To replace guardrailsB. To increase platform heightC. To help prevent tools and materials being kicked or falling from the edgeD. To mark smoking areas

Correct answer: C. Toe boards are part of edge protection and help contain materials on the platform.

Question 8 of 50Environmental & specialist awareness

What should you do if a chemical container is leaking?

A. Keep people away, follow the spill procedure and report itB. Hide it in general wasteC. Pour the contents into a drainD. Carry it through the site by hand

Correct answer: A. Leaks should be controlled using suitable spill and hazardous-substance procedures.

Question 9 of 50Safety

What should you do if you find a fire door wedged open when it should be closed?

A. Paint a warning sign on itB. Lock the doorC. Remove the obstruction if safe and report the issueD. Leave it because it improves ventilation

Correct answer: C. Fire doors are part of compartmentation and should not be defeated unless designed to be held open safely.

Question 10 of 50Environmental & specialist awareness

How should hazardous waste be handled?

A. Segregated, labelled and disposed of through the correct authorised routeB. Burned on siteC. Mixed with general wasteD. Washed into drains

Correct answer: A. Hazardous waste requires controlled storage and disposal to protect people and the environment.

Question 11 of 50Environmental & specialist awareness

What is the purpose of bunding around some fuel or chemical storage?

A. To improve ventilationB. To keep containers warmerC. To provide seatingD. To contain leaks or spills

Correct answer: D. Secondary containment helps stop liquids spreading into soil or drainage systems.

Question 12 of 50Working environment

If you see someone enter a clearly marked exclusion zone without authorisation, what is the safest response?

A. Warn them if safe to do so and inform the responsible supervisorB. Follow them into the zoneC. Remove the signsD. Ignore them because they accepted the risk

Correct answer: A. Unauthorised entry should be challenged safely and reported so the hazard remains controlled.

Question 13 of 50High risk activities

What should you do if you lose sight of the banksman while operating plant under their guidance?

A. Sound the horn and keep movingB. Continue slowlyC. Stop until communication is re-establishedD. Reverse to where you last saw them

Correct answer: C. Loss of communication can put people at risk; movement should stop until the signal system is restored.

Question 14 of 50Environmental & specialist awareness

Why may wheel-wash facilities be used at site exits?

A. To clean workers' boots onlyB. To test water pressureC. To cool vehicle brakesD. To reduce mud and debris being tracked onto public roads

Correct answer: D. Keeping public roads clear of site mud reduces environmental nuisance and road hazards.

Question 15 of 50Working environment

What does a red circular sign with a diagonal bar generally mean?

A. First-aid equipmentB. A safe escape routeC. A mandatory actionD. A prohibition or something you must not do

Correct answer: D. Red prohibition signs communicate actions that are not allowed.

Question 16 of 50High risk activities

What is a key hazard in a confined space?

A. Excess floor spaceB. Mobile phone receptionC. Too much daylightD. A dangerous atmosphere, including low oxygen or toxic gases

Correct answer: D. Confined spaces can contain life-threatening atmospheres and require strict planning and controls.

Question 17 of 50Occupational health

Why is health surveillance used for some construction hazards?

A. To decide who can take breaksB. To detect early signs of work-related ill health where appropriateC. To measure productivity onlyD. To replace risk controls

Correct answer: B. Health surveillance can help detect early effects of exposure, but it does not replace prevention and control.

Question 18 of 50Working environment

What should you do if site conditions change and the planned safe method no longer seems suitable?

A. Stop and ask for the risk assessment or method to be reviewedB. Ask a colleague to take responsibilityC. Ignore the change if the task is almost finishedD. Continue because the paperwork has already been signed

Correct answer: A. Safe systems of work should be reviewed when conditions change or new hazards appear.

Question 19 of 50Environmental & specialist awareness

What should you check before using a lifting accessory?

A. Whether it is the newest itemB. Only its colourC. Identification, suitability, condition and any required examination statusD. Whether it belongs to your employer

Correct answer: C. Lifting accessories need to be suitable, identifiable and in safe condition.

Question 20 of 50Working environment

Why should you know the location of the site assembly point?

A. It is the normal lunch areaB. It is where tools are issuedC. You may need to report there during an emergency evacuationD. It is where deliveries are signed for

Correct answer: C. The assembly point allows people to be accounted for after an evacuation.

Question 21 of 50Safety

Why is horseplay unacceptable on site?

A. It only causes delaysB. It is only prohibited for apprenticesC. It introduces unnecessary risk around hazards, tools and moving equipmentD. It is allowed during breaks

Correct answer: C. Construction sites contain serious hazards; distraction and horseplay can lead to injury.

Question 22 of 50Working environment

Why are exclusion zones set up around certain activities?

A. To create a place for storing personal belongingsB. To provide a smoking areaC. To keep unauthorised people away from a hazardous areaD. To make the site look organised

Correct answer: C. Exclusion zones reduce exposure to hazards such as lifting operations, demolition, plant or falling materials.

Question 23 of 50Environmental & specialist awareness

Why should you never ride on the forks or bucket of plant equipment?

A. It slows the engineB. They are not designed as personnel platforms and a fall or crushing injury can resultC. It is allowed if the operator agreesD. It can scratch the paint

Correct answer: B. People should only be lifted using equipment designed and authorised for lifting persons.

Question 24 of 50High risk activities

What should you check before using a ladder?

A. That it is the longest ladder on siteB. That someone used it yesterdayC. That it has paint marksD. That it is suitable, in good condition and set up securely

Correct answer: D. Ladders should be suitable for the task, inspected and positioned on a stable surface.

Question 25 of 50Occupational health

Why should you wash your hands before eating or smoking after handling hazardous materials?

A. To improve grip strengthB. To reduce accidental ingestion or transfer of contaminantsC. To reduce vibrationD. To prevent hearing damage

Correct answer: B. Handwashing prevents hazardous substances being transferred to food, cigarettes or the face.

Question 26 of 50Working environment

What is the best way to help prevent slips and trips in your work area?

A. Walk more quickly through congested areasB. Only clean areas that visitors can seeC. Keep routes clear and deal with spills, cables and waste promptlyD. Leave waste until the end of the week

Correct answer: C. Good housekeeping, cable management and prompt clean-up reduce slip and trip risks.

Question 27 of 50Occupational health

What is a sensible action if you feel unwell from heat while working?

A. Keep working until the task is completeB. Stop, move to a cooler area, hydrate and report symptomsC. Wear extra layersD. Drink only energy drinks

Correct answer: B. Heat illness can worsen quickly; early cooling, hydration and reporting are important.

Question 28 of 50Safety

Why should compressed air not be used to clean dust from clothing or skin?

A. It can drive particles into the body and create serious injury or airborne dustB. It makes clothing shrinkC. It always causes hearing loss immediatelyD. It reduces tool pressure

Correct answer: A. Compressed air can cause injection injuries and aerosolise hazardous dust.

Question 29 of 50Occupational health

Which lifting technique is generally safer for a manageable load?

A. Twist while risingB. Keep the load at arm's lengthC. Lift with a rounded back and straight legsD. Keep the load close, use a stable stance and avoid twisting

Correct answer: D. Keeping the load close and maintaining a stable, controlled posture reduces strain.

Question 30 of 50High risk activities

Why is a hot-work permit used on some sites?

A. To replace fire extinguishersB. To allow smoking in the work areaC. To record the welder's wagesD. To confirm specified fire and safety precautions are in place

Correct answer: D. A hot-work permit formalises checks and precautions for ignition-producing activities.

Question 31 of 50Safety

What should you do if the cable on a power tool is damaged?

A. Use it only in dry weatherB. Wrap the damaged area with ordinary tape and continueC. Ask a colleague to hold the cableD. Stop using it, isolate it from use and report the defect

Correct answer: D. Damaged electrical equipment should be removed from use until properly repaired or replaced.

Question 32 of 50Environmental & specialist awareness

What should you do if strong winds begin affecting a lifting or access operation?

A. Continue because the schedule is fixedB. Remove wind-speed checksC. Add more people as ballastD. Follow the equipment/plan limits and stop if conditions are unsafe

Correct answer: D. Wind can affect cranes, MEWPs, towers and loads; manufacturer and lift-plan limits must be respected.

Question 33 of 50Safety

What is the purpose of a first aider?

A. To replace emergency servicesB. To diagnose every illnessC. To prescribe medicationD. To give appropriate immediate assistance until further medical help is available

Correct answer: D. First aid is immediate assistance intended to preserve life and limit harm until more help is available.

Question 34 of 50Occupational health

Why should contaminated work clothing not be taken into clean eating areas?

A. It is only a company image issueB. It damages mobile phonesC. It can spread hazardous dusts or substancesD. It makes the room warmer

Correct answer: C. Segregating contaminated clothing helps prevent secondary exposure by ingestion or transfer.

Question 35 of 50Environmental & specialist awareness

What should you do before entering an area where a crane is operating?

A. Wave from behind the craneB. Assume the operator can see youC. Follow the exclusion-zone and communication controls and obtain permission if requiredD. Walk under the hook quickly

Correct answer: C. Crane operations need controlled access because of suspended loads, slewing and blind spots.

Question 36 of 50Occupational health

What can repeated skin contact with wet cement cause?

A. Vibration white fingerB. Dermatitis and chemical burnsC. Hearing lossD. Heat exhaustion only

Correct answer: B. Wet cement is highly alkaline and can cause irritant dermatitis and serious burns.

Question 37 of 50Safety

If someone has a serious injury, what should you do?

A. Move them immediately regardless of dangerB. Leave them alone to recoverC. Give them foodD. Raise the alarm/get first aid and emergency help in line with site procedures

Correct answer: D. Serious injuries require prompt first-aid and emergency response; unnecessary movement can worsen some injuries.

Question 38 of 50Safety

If a tool starts behaving unusually, what should you do?

A. Increase the speedB. Hit it to make it work normallyC. Stop using it and report/check the defectD. Remove the safety guard

Correct answer: C. Unusual noise, vibration or operation can indicate a dangerous defect.

Question 39 of 50Working environment

What should you do if a floor opening is uncovered?

A. Mark it with paint onlyB. Cover it with loose cardboardC. Step around it and say nothingD. Prevent access and report it so suitable protection can be restored

Correct answer: D. Openings should be physically protected or access prevented because a fall can cause serious injury.

Question 40 of 50Environmental & specialist awareness

What should you do with batteries and other potentially hazardous small items?

A. Leave them outdoorsB. Place them in the designated waste/recycling streamC. Put them in general food wasteD. Throw them into fires

Correct answer: B. Batteries can contain hazardous materials and should follow the site's designated disposal route.

Question 41 of 50High risk activities

If work at height cannot be avoided, what should be prioritised?

A. Working fasterB. Collective protection such as suitable platforms and guardrailsC. Relying only on a worker's balanceD. Removing edge protection for access

Correct answer: B. Collective fall prevention protects everyone and is generally preferred before personal fall protection.

Question 42 of 50Occupational health

How can outdoor workers reduce harm from strong sunlight?

A. Avoid drinking waterB. Use suitable clothing, shade and sunscreen and take sensible breaksC. Use welding goggles as sunglassesD. Work shirtless

Correct answer: B. UV exposure can damage skin; protective clothing, sunscreen and shade reduce risk.

Question 43 of 50High risk activities

What should you do around a suspended load?

A. Walk under it if wearing a hard hatB. Stand directly beneath it to guide the operatorC. Touch it to check its weightD. Stay clear and never position yourself underneath it

Correct answer: D. Suspended loads can fall or swing unpredictably; exclusion is essential.

Question 44 of 50Safety

What should you do with a defective ladder, tool or piece of equipment?

A. Loan it to another workerB. Take it out of use and report/label it according to site procedureC. Hide the defectD. Use it only for short tasks

Correct answer: B. Defective equipment should be prevented from being used until made safe.

Question 45 of 50Safety

Why should gas cylinders be stored upright and secured where required?

A. To make labels easier to read onlyB. To prevent them falling and damaging the valve or becoming a projectileC. To increase gas pressureD. To keep them warmer

Correct answer: B. A damaged cylinder valve can release energy violently, so cylinders should be secured and correctly stored.

Question 46 of 50Safety

Before changing a blade or accessory on a power tool, what should you normally do?

A. Isolate the tool from its power sourceB. Ask a colleague to hold the bladeC. Keep the trigger pressedD. Remove the guard permanently

Correct answer: A. Isolation prevents accidental start-up while hands are near the cutting or moving parts.

Question 47 of 50High risk activities

If a vehicle operator cannot see you, what should you assume?

A. They may move without knowing you are there, so stay clear and gain acknowledgement before approachingB. They can hear youC. They will automatically stopD. High-visibility clothing makes you visible from every angle

Correct answer: A. Never rely on being seen; establish safe communication before entering a vehicle's operating area.

Question 48 of 50Environmental & specialist awareness

What is a sensible control when refuelling plant?

A. Smoke nearby so you can see wind directionB. Refuel next to an open drainC. Leave the nozzle unattendedD. Use the designated area/process, avoid overfilling and have spill controls available

Correct answer: D. Controlled refuelling reduces fire and pollution risk.

Question 49 of 50Working environment

What is the main purpose of site welfare facilities?

A. To replace first-aid arrangementsB. To store hazardous chemicalsC. To provide suitable toilets, washing, drinking water and rest facilitiesD. To provide free tools

Correct answer: C. Suitable welfare arrangements support hygiene, health and safe working conditions.

Question 50 of 50Occupational health

What is the best reason to report stress or mental-health concerns that are affecting safe work?

A. It automatically leads to dismissalB. It is unrelated to safetyC. Support and adjustments may help prevent errors and protect wellbeingD. Only managers can raise such concerns

Correct answer: C. Wellbeing can affect concentration and decision-making; early support can help maintain safe performance.

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Official format reference: CITB states that the Operatives HS&E test contains 50 questions, lasts 45 minutes and requires at least 45 correct answers. Check current CITB guidance.

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Updated 2026-08-19. Questions are original revision content designed around common construction health, safety and environmental principles.