FREE PRACTICE TEST 04

CSCS Mock Test 04: 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 explanationsWork At Height And Access Safety

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 are overhead power lines dangerous to cranes and plant?

A. They make radios noisyB. They reduce fuel efficiencyC. They only interfere with GPSD. Electricity can arc or conduct through equipment even without direct contact

Correct answer: D. Overhead lines can cause fatal electric shock through contact or arcing, so safe clearances and controls are essential.

Question 2 of 50High risk activities

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

A. A plank across the topB. Suitable support, battering or another engineered protective systemC. High-visibility clothing onlyD. A warning sign only

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

Question 3 of 50Safety

What is the first priority if you discover a fire?

A. Open all doorsB. Continue working unless flames are largeC. Save toolsD. Raise the alarm and follow the emergency procedure

Correct answer: D. Raising the alarm allows others to evacuate and emergency arrangements to begin.

Question 4 of 50Working environment

Why should near misses be reported?

A. They do not need reporting if nobody was injuredB. So lessons can be learned and controls improved before someone is hurtC. Only to increase paperworkD. To reduce the number of breaks

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

Question 5 of 50Working environment

What is a near miss?

A. A task completed without supervisionB. An event that caused a minor injury onlyC. An unplanned event that caused no harm but could haveD. A late delivery

Correct answer: C. Near misses should be reported because they reveal hazards before a more serious incident occurs.

Question 6 of 50Working environment

What should happen to site rules after induction?

A. They should be followed throughout your time on the siteB. They apply only when management is presentC. They only apply on the first dayD. They can be ignored by experienced workers

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

Question 7 of 50Environmental & specialist awareness

What is the purpose of a spill kit?

A. To clean PPE onlyB. To test concrete strengthC. To repair electrical toolsD. To contain and absorb certain spills so they can be handled safely

Correct answer: D. Spill kits provide materials for containment, absorption and controlled clean-up.

Question 8 of 50Environmental & specialist awareness

What should happen to concrete washout water?

A. It is harmless once dilutedB. It should be poured into the nearest drainC. It should be managed in a designated system and kept out of drains and watercoursesD. It should be spread across soil

Correct answer: C. Concrete wash water is highly alkaline and can pollute water and soil.

Question 9 of 50Occupational health

If a load is too heavy or awkward for you to handle safely, what should you do?

A. Get help or use suitable mechanical assistanceB. Throw it onto a trolleyC. Drag it across an access routeD. Try to lift it once to test yourself

Correct answer: A. Do not attempt a lift that exceeds your capability; use assistance or mechanical handling equipment.

Question 10 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. Reverse to where you last saw themC. Stop until communication is re-establishedD. Continue slowly

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

Question 11 of 50High risk activities

What should you do if a lifting sling has visible cuts, severe wear or damage?

A. Tie a knot in itB. Remove it from use and report itC. Use it for a lighter load without telling anyoneD. Wrap it with tape

Correct answer: B. Damaged lifting accessories must not be used unless formally assessed and made safe.

Question 12 of 50Environmental & specialist awareness

What is the best general approach to construction waste?

A. Bury waste on siteB. Burn timber and packagingC. Prevent or reduce waste first, then reuse/recycle where practicable before disposalD. Send everything to general waste

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

Question 13 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 14 of 50Occupational health

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

A. To test the colour of the filterB. To replace trainingC. To measure hearing protectionD. To check that the specific mask can seal adequately to the wearer

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

Question 15 of 50Safety

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

A. Stop work and follow the site's evacuation procedureB. Wait for smoke to appearC. Finish the current task firstD. Collect all your tools

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

Question 16 of 50Working environment

What is the main purpose of a risk assessment?

A. To make a job take longerB. To record who should be blamed after an accidentC. To identify hazards, assess risk and decide suitable controlsD. To replace all training and supervision

Correct answer: C. Risk assessment is used to identify hazards and put proportionate controls in place before people are harmed.

Question 17 of 50Occupational health

Why can facial hair be a problem with tight-fitting respirators?

A. It increases oxygen levelsB. It only affects hard hatsC. It makes filters last longerD. It can prevent an effective seal against the face

Correct answer: D. Tight-fitting respirators rely on a good face seal; facial hair in the seal area can create leaks.

Question 18 of 50Safety

What is the purpose of lock-off or isolation procedures?

A. To make equipment run fasterB. To reserve equipment for one tradeC. To prevent equipment being energised unexpectedly during workD. To record working hours

Correct answer: C. Secure isolation helps prevent dangerous unexpected energisation or movement.

Question 19 of 50Environmental & specialist awareness

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

A. Increase vehicle speedsB. Sweep dry dust into the roadC. Remove wheel-wash facilitiesD. Use source controls, damping/extraction and keep routes clean

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

Question 20 of 50Safety

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

A. It always causes hearing loss immediatelyB. It reduces tool pressureC. It can drive particles into the body and create serious injury or airborne dustD. It makes clothing shrink

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

Question 21 of 50Occupational health

What is the safest approach to reducing exposure to hazardous fumes?

A. Rely on smell to decide if it is safeB. Hold your breathC. Use effective ventilation or extraction and follow the task controlsD. Work faster

Correct answer: C. Engineering controls such as local exhaust ventilation can remove fumes at source.

Question 22 of 50Environmental & specialist awareness

Why are exclusion zones used around overhead lifting?

A. To prevent people entering areas where loads or objects could fall or swingB. To keep vehicles cleanC. To create a rest areaD. To improve radio reception

Correct answer: A. Exclusion protects people from dropped or moving loads.

Question 23 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 24 of 50Safety

Why should water not be used on live electrical equipment?

A. It can conduct electricity and increase shock riskB. It makes alarms louderC. It creates asbestosD. It always damages concrete

Correct answer: A. Water can conduct electricity; power should be isolated and a suitable extinguisher used where appropriate.

Question 25 of 50Occupational health

What can repeated skin contact with wet cement cause?

A. Heat exhaustion onlyB. Hearing lossC. Vibration white fingerD. Dermatitis and chemical burns

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

Question 26 of 50Working environment

Why are toolbox talks used on construction sites?

A. To inspect payroll recordsB. To allocate annual leaveC. To discuss short, relevant safety topics with the workforceD. To replace all formal qualifications

Correct answer: C. Toolbox talks provide focused, practical reminders about hazards, controls and safe working methods.

Question 27 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 confirm specified fire and safety precautions are in placeD. To record the welder's wages

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

Question 28 of 50Occupational health

How can vibration exposure from power tools be reduced?

A. Use heavier gloves instead of managing exposureB. Grip the tool as tightly as possibleC. Use suitable low-vibration tools, maintain them and limit exposure timeD. Remove tool guards

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

Question 29 of 50Safety

Why should emergency stop controls be kept unobstructed?

A. They are only decorativeB. They may need to be activated immediatelyC. They increase productionD. They prevent tools being cleaned

Correct answer: B. Emergency stops must be readily accessible if dangerous movement needs to be stopped quickly.

Question 30 of 50Working environment

Why are site inspections carried out?

A. To identify unsafe conditions and check controls are workingB. Only to prepare for client visitsC. To replace worker trainingD. To decide who gets overtime

Correct answer: A. Inspections help identify defects, changing conditions and failures in existing controls.

Question 31 of 50Environmental & specialist awareness

What should you check before using a lifting accessory?

A. Only its colourB. Whether it belongs to your employerC. Identification, suitability, condition and any required examination statusD. Whether it is the newest item

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

Question 32 of 50Occupational health

What does COSHH relate to?

A. Setting wage ratesB. Managing scaffold inspectionsC. Controlling exposure to substances hazardous to healthD. Controlling vehicle parking

Correct answer: C. COSHH requires hazardous substances and exposure routes to be assessed and controlled.

Question 33 of 50Occupational health

Why is fatigue a safety and health concern?

A. It can reduce concentration, judgement and reaction timeB. It improves risk awarenessC. It only affects office workersD. It makes hearing protection unnecessary

Correct answer: A. Fatigue can impair performance and increase the likelihood of mistakes and incidents.

Question 34 of 50High risk activities

When should work at height be avoided?

A. Only above five metresB. Never; ladders are always acceptableC. Whenever the task can reasonably be done from a safe position without working at heightD. Only when it rains

Correct answer: C. The hierarchy for work at height starts by avoiding work at height where reasonably practicable.

Question 35 of 50Occupational health

Why must respiratory protective equipment be suitable for the hazard?

A. All masks provide identical protectionB. The colour is the only important factorC. RPE replaces all other controlsD. Different filters and respirators protect against different contaminants

Correct answer: D. RPE must be correctly selected for the contaminant, concentration and task.

Question 36 of 50Safety

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

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

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

Question 37 of 50High risk activities

Why should lifting accessories such as slings be checked before use?

A. To make them look cleanB. To increase crane speedC. To avoid using a lift planD. Damage or incorrect selection can lead to load failure

Correct answer: D. Lifting accessories must be suitable and free from defects that could compromise their strength.

Question 38 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 39 of 50Environmental & specialist awareness

What should you do if a chemical container is leaking?

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

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

Question 40 of 50Safety

Why is horseplay unacceptable on site?

A. It is only prohibited for apprenticesB. It only causes delaysC. It is allowed during breaksD. It introduces unnecessary risk around hazards, tools and moving equipment

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

Question 41 of 50Environmental & specialist awareness

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

A. To reduce mud and debris being tracked onto public roadsB. To test water pressureC. To clean workers' boots onlyD. To cool vehicle brakes

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

Question 42 of 50Occupational health

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

A. To reduce vibrationB. To improve grip strengthC. To prevent hearing damageD. To reduce accidental ingestion or transfer of contaminants

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

Question 43 of 50High risk activities

Who should operate an excavator, telehandler or similar plant?

A. A trained, competent and authorised operatorB. Anyone with a car licenceC. A labourer if supervised from a distanceD. Any worker over 18

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

Question 44 of 50Safety

Why must safety devices on tools and machinery not be bypassed?

A. They are designed to reduce exposure to dangerous movement or conditionsB. They are only required during inspectionsC. They are optional for experienced workersD. They reduce productivity only

Correct answer: A. Defeating safety devices removes engineered protection and can expose workers to severe hazards.

Question 45 of 50Working environment

What should you do if a safety barrier has been moved and no longer protects an opening?

A. Wait until the end of the shiftB. Report it and make sure the area is secured before exposure continuesC. Assume someone else will fix itD. Put a warning note nearby and carry on

Correct answer: B. Missing barriers can expose people to serious falls; the area should be secured and the defect reported promptly.

Question 46 of 50Working environment

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

A. It helps coordinate hazards and prevents conflicting activitiesB. It allows each trade to ignore the othersC. It means PPE is no longer requiredD. It removes the need for permits

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

Question 47 of 50Safety

What is the purpose of a first aider?

A. To replace emergency servicesB. To give appropriate immediate assistance until further medical help is availableC. To diagnose every illnessD. To prescribe medication

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

Question 48 of 50Working environment

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

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

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

Question 49 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 50 of 50High risk activities

What should happen before digging where underground services may be present?

A. Rely on memory of old plansB. Pour water on the areaC. Check service information, locate services with suitable equipment and use safe digging methodsD. Start with a mechanical excavator

Correct answer: C. Planning, service plans, locating devices and safe digging practices help prevent striking buried services.

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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.