FREE PRACTICE TEST 53

CSCS Mock Test 53: 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 explanationsDust, Noise And Occupational Health

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 50Working environment

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

A. A safe escape routeB. A prohibition or something you must not doC. First-aid equipmentD. A mandatory action

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

Question 2 of 50Environmental & specialist awareness

Why should chemical containers remain correctly labelled?

A. Unlabelled containers are saferB. So users know the contents, hazards and handling requirementsC. Labels are only for delivery driversD. It increases shelf life

Correct answer: B. Correct labelling is essential for identification, safe use and emergency response.

Question 3 of 50Safety

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

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

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

Question 4 of 50Environmental & specialist awareness

Why should drains sometimes be covered or protected during spill-risk activities?

A. To prevent contaminants entering the drainage systemB. To stop rain completelyC. To store tools on topD. To increase drainage speed

Correct answer: A. Drain protection is an important part of pollution prevention.

Question 5 of 50Working environment

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

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

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

Question 6 of 50Occupational health

What is the purpose of face-fit testing for tight-fitting RPE?

A. To check that the specific mask can seal adequately to the wearerB. To test the colour of the filterC. To measure hearing protectionD. To replace training

Correct answer: A. Face-fit testing helps confirm that a tight-fitting mask is suitable for the individual wearer.

Question 7 of 50High risk activities

Why is an excavation dangerous even if it is not very deep?

A. Shallow excavations are always safeB. Only water is a hazardC. Sides can collapse and people can fall in or encounter services depending on conditionsD. Only excavators are at risk

Correct answer: C. Excavation risk depends on ground, depth, loads, access, services and other conditions—not one simple depth threshold.

Question 8 of 50Occupational health

Why is health surveillance used for some construction hazards?

A. To detect early signs of work-related ill health where appropriateB. To measure productivity onlyC. To replace risk controlsD. To decide who can take breaks

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

Question 9 of 50Working environment

Why should emergency routes and exits never be blocked?

A. They are used only by visitorsB. They may be needed for rapid evacuationC. Blocked exits reduce heating costsD. They are mainly for deliveries

Correct answer: B. Emergency routes must stay available so people can leave quickly and safely.

Question 10 of 50Safety

Why is horseplay unacceptable on site?

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

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

Question 11 of 50Environmental & specialist awareness

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

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

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

Question 12 of 50Safety

What should you do when a fire alarm sounds on site?

A. Finish the current task firstB. Collect all your toolsC. Wait for smoke to appearD. Stop work and follow the site's evacuation procedure

Correct answer: D. Fire alarms require prompt evacuation in line with the site emergency plan.

Question 13 of 50Working environment

What should you do when you arrive at a construction site for the first time?

A. Start work immediately if you know the tradeB. Wait in the welfare area until someone finds youC. Only read the emergency noticeboardD. Attend the site induction and follow the site rules

Correct answer: D. A site induction explains local hazards, emergency arrangements, welfare facilities and site-specific rules before work begins.

Question 14 of 50Working environment

Who should report a hazard that could injure someone on site?

A. Only a visiting inspectorB. Anyone who notices the hazardC. Only the person who created the hazardD. Only the health and safety manager

Correct answer: B. Everyone on site has a role in reporting hazards so they can be controlled promptly.

Question 15 of 50Safety

Why should you never remove an electrical plug earth pin or defeat an RCD?

A. It only affects battery lifeB. It can remove important protection against electric shockC. It changes the voltage colourD. It makes tools too quiet

Correct answer: B. Protective electrical features are safety controls and must not be bypassed.

Question 16 of 50Working environment

What should happen to site rules after induction?

A. They only apply on the first dayB. They apply only when management is presentC. They can be ignored by experienced workersD. They should be followed throughout your time on the site

Correct answer: D. Site rules remain in force because they form part of the site's risk controls.

Question 17 of 50Working environment

Why should near misses be reported?

A. To reduce the number of breaksB. They do not need reporting if nobody was injuredC. So lessons can be learned and controls improved before someone is hurtD. Only to increase paperwork

Correct answer: C. Near-miss reporting helps identify weaknesses in controls and prevent recurrence.

Question 18 of 50Occupational health

If a hearing-protection zone is marked, what should you do?

A. Ignore the sign if you are there brieflyB. Wear the specified hearing protectionC. Only wear protection when machinery stopsD. Use headphones instead

Correct answer: B. Mandatory hearing protection zones indicate that suitable hearing protection must be worn.

Question 19 of 50Occupational health

Why is asbestos dangerous?

A. Airborne fibres can cause serious diseases many years after exposureB. It causes instant electrical shockC. It only causes skin irritationD. It always catches fire

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

Question 20 of 50Occupational health

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

A. Mix it with waterB. Use it outdoors without further checksC. Check the assessment, label/SDS and required controlsD. Smell it to identify the hazard

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

Question 21 of 50Safety

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

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

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

Question 22 of 50Environmental & specialist awareness

Why should different waste streams be separated where the site system requires it?

A. It supports safe handling, recycling and lawful disposalB. It increases the amount of wasteC. It makes all waste non-hazardousD. It removes the need for skips

Correct answer: A. Segregation can improve recycling and prevent contamination of recyclable or hazardous waste streams.

Question 23 of 50High risk activities

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

A. Relying only on a worker's balanceB. Collective protection such as suitable platforms and guardrailsC. Removing edge protection for accessD. Working faster

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

Question 24 of 50High risk activities

Who should operate an excavator, telehandler or similar plant?

A. Anyone with a car licenceB. Any worker over 18C. A trained, competent and authorised operatorD. A labourer if supervised from a distance

Correct answer: C. Plant operation requires competence and site authorisation appropriate to the equipment and task.

Question 25 of 50Safety

Where should flammable materials be kept?

A. Next to heaters so they stay dryB. In designated storage away from ignition sources, following site rulesC. Under stairways used for evacuationD. In escape routes

Correct answer: B. Segregated, suitable storage reduces fire and ignition risk.

Question 26 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 27 of 50Environmental & specialist awareness

Why should noisy work be planned carefully near neighbours?

A. Noise outside the site is never relevantB. To make the equipment wear fasterC. To eliminate the need for hearing protectionD. To reduce nuisance and comply with site/local controls

Correct answer: D. Construction noise can affect neighbours and may be subject to agreed hours and control measures.

Question 28 of 50Working environment

What is the best response if a task creates a hazard for people working nearby?

A. Only warn your own teamB. Coordinate the work and put controls or segregation in placeC. Assume they will notice itD. Work faster

Correct answer: B. Activities should be coordinated so one team's work does not expose others to uncontrolled risk.

Question 29 of 50Safety

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

A. Stop using it and report/check the defectB. Increase the speedC. Hit it to make it work normallyD. Remove the safety guard

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

Question 30 of 50High risk activities

What should be provided where an excavation is at risk of collapse?

A. High-visibility clothing onlyB. A warning sign onlyC. A plank across the topD. Suitable support, battering or another engineered protective system

Correct answer: D. Excavation sides need appropriate support or safe shaping where collapse risk exists.

Question 31 of 50High risk activities

What is the approximate safe setup rule for a leaning ladder?

A. One unit out for every one unit upB. As vertical as possibleC. About one unit out for every four units upD. Four units out for every one unit up

Correct answer: C. The common 1-in-4 setup gives a leaning ladder an angle of about 75 degrees.

Question 32 of 50Occupational health

What can prolonged exposure to high noise levels cause?

A. Better concentrationB. Improved balanceC. Permanent hearing damageD. Stronger eyesight

Correct answer: C. Noise-induced hearing loss can be permanent, so exposure should be controlled and hearing protection used where required.

Question 33 of 50High risk activities

Should a mobile access tower be moved while people or loose materials are on the platform?

A. No, occupants should descend and loose items be secured before movingB. Yes, if moved slowlyC. Only if the brakes are partly appliedD. Yes, if two people push

Correct answer: A. Moving an occupied tower can cause overturning or falls.

Question 34 of 50Environmental & specialist awareness

What is the best general approach to construction waste?

A. Send everything to general wasteB. Prevent or reduce waste first, then reuse/recycle where practicable before disposalC. Burn timber and packagingD. Bury waste on site

Correct answer: B. Waste prevention and reuse generally sit above recycling and disposal in the waste hierarchy.

Question 35 of 50High risk activities

What should you do if the ground beneath access equipment is soft or unstable?

A. Lower tyre pressureB. Add extra people to the platformC. Stop and ensure the equipment is supported on suitable stable ground or designed measuresD. Work faster

Correct answer: C. Unstable ground can cause overturning or collapse of access equipment.

Question 36 of 50High risk activities

What should you check before using a ladder?

A. That it is suitable, in good condition and set up securelyB. That it is the longest ladder on siteC. That someone used it yesterdayD. That it has paint marks

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

Question 37 of 50Working environment

Why should materials be stored securely and tidily?

A. Only to improve photographs of the siteB. So workers can climb on themC. To avoid using storage racksD. To reduce collapse, trip and access risks

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

Question 38 of 50Occupational health

What is the first step before manually lifting a heavy or awkward load?

A. Carry it above shoulder heightB. Twist your back to get momentumC. Lift quickly before you get tiredD. Assess the load, route and whether mechanical help or assistance is needed

Correct answer: D. Manual handling should be planned; avoid or reduce the lift where possible and assess the load and route.

Question 39 of 50Occupational health

What can repeated skin contact with wet cement cause?

A. Hearing lossB. Vibration white fingerC. Heat exhaustion onlyD. Dermatitis and chemical burns

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

Question 40 of 50High risk activities

What is a major hazard of fragile roofs?

A. They attract lightningB. A person can fall through the roof surfaceC. They cannot get wetD. They always contain asbestos

Correct answer: B. Fragile materials may not support a person's weight and require specific access and fall controls.

Question 41 of 50Occupational health

How can vibration exposure from power tools be reduced?

A. Use suitable low-vibration tools, maintain them and limit exposure timeB. Remove tool guardsC. Use heavier gloves instead of managing exposureD. Grip the tool as tightly as possible

Correct answer: A. Tool selection, maintenance and exposure management are key controls for vibration risk.

Question 42 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 43 of 50Environmental & specialist awareness

What is a good way to reduce dust leaving a construction site?

A. Remove wheel-wash facilitiesB. Use source controls, damping/extraction and keep routes cleanC. Increase vehicle speedsD. Sweep dry dust into the road

Correct answer: B. Source control and good housekeeping reduce airborne dust and off-site nuisance.

Question 44 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. Keep the trigger pressedC. Ask a colleague to hold the bladeD. Remove the guard permanently

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

Question 45 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 will automatically stopC. They can hear youD. 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 46 of 50Safety

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

A. Ask a colleague to hold the cableB. Stop using it, isolate it from use and report the defectC. Wrap the damaged area with ordinary tape and continueD. Use it only in dry weather

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

Question 47 of 50Working environment

What is a method statement mainly used for?

A. Recording holiday entitlementB. Ordering materials from suppliersC. Setting out a safe sequence and method for carrying out workD. Listing employee salaries

Correct answer: C. A method statement describes how a task will be carried out safely, often alongside a risk assessment.

Question 48 of 50Environmental & specialist awareness

What is a sensible control when refuelling plant?

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

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

Question 49 of 50Environmental & specialist awareness

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

A. To contain leaks or spillsB. To provide seatingC. To keep containers warmerD. To improve ventilation

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

Question 50 of 50Occupational health

What is a major health risk from repeatedly breathing respirable crystalline silica dust?

A. Hearing lossB. Silicosis and other serious lung diseaseC. Sprained anklesD. Temporary eye strain only

Correct answer: B. Fine silica dust can penetrate deep into the lungs and cause serious, irreversible disease.

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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.