FREE PRACTICE TEST 30

CSCS Mock Test 30: 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 explanationsFull Mixed Operatives-Style 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 50Occupational health

Why is fatigue a safety and health concern?

A. It improves risk awarenessB. It makes hearing protection unnecessaryC. It only affects office workersD. It can reduce concentration, judgement and reaction time

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

Question 2 of 50Occupational health

Which lifting technique is generally safer for a manageable load?

A. Lift with a rounded back and straight legsB. Twist while risingC. Keep the load close, use a stable stance and avoid twistingD. Keep the load at arm's length

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

Question 3 of 50Safety

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

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

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

Question 4 of 50Safety

What should you do before operating unfamiliar equipment?

A. Try each control until you learn itB. Operate it only at maximum speedC. Make sure you are trained/authorised and understand the instructions and controlsD. Remove warning labels

Correct answer: C. Competence and understanding of controls are essential before operating equipment.

Question 5 of 50Safety

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

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

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

Question 6 of 50Safety

What is the purpose of a first aider?

A. To diagnose every illnessB. To replace emergency servicesC. To give appropriate immediate assistance until further medical help is availableD. To prescribe medication

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

Question 7 of 50Environmental & specialist awareness

Why should noisy work be planned carefully near neighbours?

A. To eliminate the need for hearing protectionB. To make the equipment wear fasterC. Noise outside the site is never relevantD. 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 8 of 50Occupational health

What can prolonged exposure to high noise levels cause?

A. Improved balanceB. Stronger eyesightC. Permanent hearing damageD. Better concentration

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

Question 9 of 50Safety

What is the first priority if you discover a fire?

A. Continue working unless flames are largeB. Save toolsC. Open all doorsD. Raise the alarm and follow the emergency procedure

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

Question 10 of 50Occupational health

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

A. To reduce vibrationB. To prevent hearing damageC. To improve grip strengthD. To reduce accidental ingestion or transfer of contaminants

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

Question 11 of 50Working environment

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

A. Follow them into the zoneB. Ignore them because they accepted the riskC. Warn them if safe to do so and inform the responsible supervisorD. Remove the signs

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

Question 12 of 50Safety

What should you do if you smell gas or suspect a gas leak?

A. Use a flame to test for gasB. Stop work, avoid ignition sources, move to safety and follow the emergency procedureC. Switch electrical equipment on to find the sourceD. Ignore it outdoors

Correct answer: B. Suspected gas leaks require prompt isolation from ignition and emergency reporting.

Question 13 of 50Environmental & specialist awareness

What should you do if a chemical container is leaking?

A. Pour the contents into a drainB. Keep people away, follow the spill procedure and report itC. Carry it through the site by handD. Hide it in general waste

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

Question 14 of 50Working environment

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

A. It is where deliveries are signed forB. It is the normal lunch areaC. You may need to report there during an emergency evacuationD. It is where tools are issued

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

Question 15 of 50Occupational health

What should you do if you develop persistent numbness in your fingers after using vibrating tools?

A. Increase your daily exposure slowlyB. Ignore it until the next annual checkC. Use the tool with one handD. Report the symptoms and seek occupational health or medical advice

Correct answer: D. Early reporting of symptoms can prevent further exposure and allow assessment.

Question 16 of 50Working environment

What does a yellow triangular safety sign normally indicate?

A. A safe condition or first-aid pointB. A prohibitionC. A mandatory actionD. A warning or hazard

Correct answer: D. Yellow triangular signs with dark symbols are used to warn about hazards.

Question 17 of 50Environmental & specialist awareness

Why must waste skips not be overfilled?

A. It improves recyclingB. It only affects appearanceC. Materials can fall out during use or transportD. It makes the skip too easy to lift

Correct answer: C. Overfilled skips create falling-object, transport and litter risks.

Question 18 of 50Working environment

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

A. Only the person who created the hazardB. Only the health and safety managerC. Anyone who notices the hazardD. Only a visiting inspector

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

Question 19 of 50Environmental & specialist awareness

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

A. It is allowed if the operator agreesB. It can scratch the paintC. It slows the engineD. They are not designed as personnel platforms and a fall or crushing injury can result

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

Question 20 of 50High risk activities

What should be considered before carrying out hot work such as welding or cutting?

A. Only the colour of the welding screenB. Fire risk, combustible materials, permits and fire-watch arrangements where requiredC. How quickly the job can be finishedD. Whether the task is indoors

Correct answer: B. Hot work can ignite nearby materials and often requires formal controls and fire precautions.

Question 21 of 50Safety

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

A. It makes clothing shrinkB. It can drive particles into the body and create serious injury or airborne dustC. It reduces tool pressureD. It always causes hearing loss immediately

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

Question 22 of 50High risk activities

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

A. Stop and ensure the equipment is supported on suitable stable ground or designed measuresB. Work fasterC. Add extra people to the platformD. Lower tyre pressure

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

Question 23 of 50Occupational health

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

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

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

Question 24 of 50Safety

Why is horseplay unacceptable on site?

A. It is allowed during breaksB. It only causes delaysC. It introduces unnecessary risk around hazards, tools and moving equipmentD. It is only prohibited for apprentices

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

Question 25 of 50Safety

Why should water not be used on live electrical equipment?

A. It always damages concreteB. It can conduct electricity and increase shock riskC. It creates asbestosD. It makes alarms louder

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

Question 26 of 50High risk activities

Why are toe boards fitted to many work platforms?

A. To increase platform heightB. To mark smoking areasC. To help prevent tools and materials being kicked or falling from the edgeD. To replace guardrails

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

Question 27 of 50Environmental & specialist awareness

Why are exclusion zones used around overhead lifting?

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

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

Question 28 of 50Occupational health

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

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

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

Question 29 of 50High risk activities

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

A. Any worker nearbyB. The newest workerC. Only the delivery driverD. A designated competent signaller/banksman where required

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

Question 30 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. A mandatory actionD. First-aid equipment

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

Question 31 of 50Occupational health

Where can you find manufacturer information about the hazards and safe handling of a chemical product?

A. Safety Data SheetB. Delivery driver's licenceC. TimesheetD. Site map only

Correct answer: A. Safety Data Sheets provide hazard, handling, storage and emergency information for chemical products.

Question 32 of 50Working environment

What do green safety signs commonly identify?

A. Mandatory PPEB. Electrical voltageC. Prohibited activitiesD. Safe conditions such as emergency exits or first aid

Correct answer: D. Green signs are associated with safe conditions such as emergency exits and first-aid locations.

Question 33 of 50Environmental & specialist awareness

How should hazardous waste be handled?

A. Mixed with general wasteB. Washed into drainsC. Segregated, labelled and disposed of through the correct authorised routeD. Burned on site

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

Question 34 of 50Environmental & specialist awareness

Why should spills be kept out of surface-water drains?

A. They reduce concrete strengthB. They may flow directly to watercourses and cause pollutionC. They only affect drinking water on siteD. They always block toilets

Correct answer: B. Many surface-water systems discharge to the environment, so pollutants must not enter them.

Question 35 of 50Environmental & specialist awareness

What is the best general approach to construction waste?

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

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

Question 36 of 50Occupational health

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

A. Temporary eye strain onlyB. Silicosis and other serious lung diseaseC. Sprained anklesD. Hearing loss

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

Question 37 of 50High risk activities

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

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

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

Question 38 of 50Environmental & specialist awareness

What should you do if work could disturb protected wildlife or nesting birds?

A. Stop or follow the ecological controls and seek advice before disturbing themB. Use louder machineryC. Ignore it if the programme is busyD. Move the nest yourself

Correct answer: A. Ecological constraints should be identified and managed in line with site and legal requirements.

Question 39 of 50High risk activities

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

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

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

Question 40 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. Only clean areas that visitors can seeC. Walk more quickly through congested areasD. Keep routes clear and deal with spills, cables and waste promptly

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

Question 41 of 50High risk activities

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

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

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

Question 42 of 50Working environment

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

A. Assume someone else will fix itB. Put a warning note nearby and carry onC. Report it and make sure the area is secured before exposure continuesD. Wait until the end of the shift

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

Question 43 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. Try to lift it once to test yourselfC. Drag it across an access routeD. Throw it onto a trolley

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

Question 44 of 50Working environment

What is a near miss?

A. An event that caused a minor injury onlyB. A late deliveryC. An unplanned event that caused no harm but could haveD. A task completed without supervision

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

Question 45 of 50High risk activities

What should you do around a suspended load?

A. Touch it to check its weightB. Stay clear and never position yourself underneath itC. Stand directly beneath it to guide the operatorD. Walk under it if wearing a hard hat

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

Question 46 of 50Safety

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

A. Remove the guard permanentlyB. Keep the trigger pressedC. Isolate the tool from its power sourceD. Ask a colleague to hold the blade

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

Question 47 of 50Working environment

What is the safest action if lighting in a work area is too poor to see hazards clearly?

A. Work more slowly without reporting itB. Ask a colleague to stand nearbyC. Stop or delay the task until suitable lighting is providedD. Use a phone torch and continue

Correct answer: C. Adequate lighting is needed to see hazards, access routes and the work itself safely.

Question 48 of 50High risk activities

What is a major danger near reversing construction vehicles?

A. Clean windscreensB. Loud radiosC. Low tyre pressure onlyD. Driver blind spots

Correct answer: D. Large vehicles can have significant blind spots, so segregation, visibility and safe reversing controls are important.

Question 49 of 50Environmental & specialist awareness

Why should plant engines not be left idling unnecessarily?

A. It makes batteries last longerB. It prevents oil leaksC. It wastes fuel and increases emissions and noiseD. It improves air quality

Correct answer: C. Reducing unnecessary idling lowers fuel use, emissions and noise.

Question 50 of 50High risk activities

What is a key hazard in a confined space?

A. Too much daylightB. Excess floor spaceC. A dangerous atmosphere, including low oxygen or toxic gasesD. Mobile phone reception

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

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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.