FREE PRACTICE TEST 50

CSCS Mock Test 50: 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.

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Answered 0/50

Question 1 of 50High risk activities

What is the safest position when a machine is slewing or turning?

A. On the machine stepsB. Outside the machine's operating and crush zonesC. Between the machine and a fixed wallD. Directly behind the counterweight

Correct answer: B. People can be crushed between moving plant and fixed objects; exclusion zones are critical.

Question 2 of 50Working environment

What should you do with an access route that has become obstructed by materials?

A. Climb over the materialsB. Arrange for the obstruction to be cleared and keep the route usableC. Leave it until the next deliveryD. Use the vehicle route instead

Correct answer: B. Access and escape routes should be kept clear and usable.

Question 3 of 50Environmental & specialist awareness

Why should plant engines not be left idling unnecessarily?

A. It wastes fuel and increases emissions and noiseB. It makes batteries last longerC. It prevents oil leaksD. It improves air quality

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

Question 4 of 50High risk activities

Why are banksmen used for some vehicle movements?

A. To help control movements where the driver has restricted visibilityB. To speed up reversingC. To inspect wagesD. To replace vehicle brakes

Correct answer: A. A trained banksman can guide movements and help keep people out of danger zones.

Question 5 of 50Occupational health

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

A. Try to lift it once to test yourselfB. Get help or use suitable mechanical assistanceC. Drag it across an access routeD. Throw it onto a trolley

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

Question 6 of 50Safety

Why must emergency equipment remain accessible?

A. Access is optional on small sitesB. It is used for tool storageC. It is only used during inspectionsD. It may be needed immediately during an incident

Correct answer: D. Blocked fire points, first-aid equipment or emergency controls can delay a response.

Question 7 of 50Environmental & specialist awareness

What should happen if you discover contaminated soil during excavation?

A. Mix it with clean soilB. Wash it into a drainC. Spread it across the siteD. Stop or isolate as required and report it so the material can be assessed and managed

Correct answer: D. Unexpected contamination should be assessed before further disturbance or disposal.

Question 8 of 50Environmental & specialist awareness

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

A. They always block toiletsB. They reduce concrete strengthC. They only affect drinking water on siteD. They may flow directly to watercourses and cause pollution

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

Question 9 of 50Occupational health

Why should dust not be cleaned up by dry sweeping when it can be avoided?

A. It damages broomsB. It creates static onlyC. It makes the floor too shinyD. Dry sweeping can put fine dust back into the air

Correct answer: D. Suitable vacuuming or wet methods can reduce airborne dust compared with dry sweeping.

Question 10 of 50Environmental & specialist awareness

Why must waste skips not be overfilled?

A. It makes the skip too easy to liftB. It improves recyclingC. Materials can fall out during use or transportD. It only affects appearance

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

Question 11 of 50Working environment

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

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

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

Question 12 of 50Working environment

Why should designated pedestrian routes be used around moving plant?

A. They are usually the shortest routeB. They remove the need for high-visibility clothingC. They help separate people from vehicle movementsD. They are only for visitors

Correct answer: C. Segregating pedestrians from moving vehicles is a key control for workplace transport risks.

Question 13 of 50Occupational health

How can outdoor workers reduce harm from strong sunlight?

A. Use welding goggles as sunglassesB. Work shirtlessC. Avoid drinking waterD. Use suitable clothing, shade and sunscreen and take sensible breaks

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

Question 14 of 50Safety

Why should water not be used on live electrical equipment?

A. It creates asbestosB. It always damages concreteC. It makes alarms louderD. It can conduct electricity and increase shock risk

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

Question 15 of 50Environmental & specialist awareness

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

A. They are not designed as personnel platforms and a fall or crushing injury can resultB. It slows the engineC. It can scratch the paintD. It is allowed if the operator agrees

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

Question 16 of 50Safety

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

A. Ask a colleague to hold the bladeB. Isolate the tool from its power sourceC. Remove the guard permanentlyD. Keep the trigger pressed

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

Question 17 of 50Working environment

Why should materials be stored securely and tidily?

A. So workers can climb on themB. Only to improve photographs of the siteC. 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 18 of 50High risk activities

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

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

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

Question 19 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. Ignore the change if the task is almost finishedC. Ask a colleague to take responsibilityD. 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 20 of 50Environmental & specialist awareness

What is the purpose of a spill kit?

A. To repair electrical toolsB. To contain and absorb certain spills so they can be handled safelyC. To test concrete strengthD. To clean PPE only

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

Question 21 of 50Occupational health

Why should hearing protection fit correctly?

A. It makes tools run more quietlyB. It removes the need to control noise at sourceC. Poor fit can greatly reduce the protection providedD. It changes the colour of the ear defenders

Correct answer: C. Hearing protection only works effectively when selected, fitted and worn correctly.

Question 22 of 50Occupational health

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

A. Ignore it until the next annual checkB. Report the symptoms and seek occupational health or medical adviceC. Increase your daily exposure slowlyD. Use the tool with one hand

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

Question 23 of 50Environmental & specialist awareness

How should hazardous waste be handled?

A. Washed into drainsB. Mixed with general wasteC. 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 24 of 50High risk activities

Who should operate an excavator, telehandler or similar plant?

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

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

Question 25 of 50High risk activities

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

A. To make them look cleanB. To avoid using a lift planC. To increase crane speedD. 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 26 of 50High risk activities

Before using a MEWP, what should the operator confirm?

A. They are trained/authorised and the machine and ground conditions are suitableB. It can be driven on any slopeC. The platform can carry unlimited weightD. Guardrails can be removed for access

Correct answer: A. MEWP safety depends on competent operation, pre-use checks, safe ground and following the manufacturer's limits.

Question 27 of 50Occupational health

When cutting materials that can produce silica dust, which control is usually preferable to relying only on a dust mask?

A. Remove eye protectionB. Work faster to reduce exposure timeC. Open a nearby door onlyD. Use effective extraction or water suppression at source

Correct answer: D. Controlling dust at source with extraction or suppression is more effective than relying on PPE alone.

Question 28 of 50High risk activities

What is a major danger near reversing construction vehicles?

A. Driver blind spotsB. Loud radiosC. Clean windscreensD. Low tyre pressure only

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

Question 29 of 50Working environment

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

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

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

Question 30 of 50Environmental & specialist awareness

What should you do first if oil or fuel is spilled on site?

A. Cover it with soil and leave itB. Ignore small spillsC. Wash it into a surface-water drainD. Stop the source if safe, contain the spill and follow the site's spill procedure

Correct answer: D. Prompt containment helps prevent pollution and allows correct clean-up and disposal.

Question 31 of 50Occupational health

What can prolonged exposure to high noise levels cause?

A. Better concentrationB. Stronger eyesightC. Permanent hearing damageD. Improved balance

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

Question 32 of 50Safety

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

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

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

Question 33 of 50Occupational health

What should you do if a chemical splashes onto your skin?

A. Follow the product/site emergency instructions, rinse as directed and seek help if neededB. Cover it with dustC. Rub the area vigorouslyD. Wait until the end of the shift

Correct answer: A. Prompt decontamination and following the safety data/site procedure can limit injury.

Question 34 of 50Safety

If someone is receiving an electric shock from live equipment, what should you do first if it is safe?

A. Pour water on the equipmentB. Isolate the electrical supply before touching the personC. Pull them away with bare handsD. Move the cable with a metal tool

Correct answer: B. You must avoid becoming a second casualty; safely isolate the power before contact.

Question 35 of 50Environmental & specialist awareness

Why should noisy work be planned carefully near neighbours?

A. To make the equipment wear fasterB. To reduce nuisance and comply with site/local controlsC. Noise outside the site is never relevantD. To eliminate the need for hearing protection

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

Question 36 of 50Safety

Where should flammable materials be kept?

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

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

Question 37 of 50Safety

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

A. Hide the defectB. Use it only for short tasksC. Take it out of use and report/label it according to site procedureD. Loan it to another worker

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

Question 38 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 two people pushD. Yes, if moved slowly

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

Question 39 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. How quickly the job can be finishedC. Whether the task is indoorsD. Fire risk, combustible materials, permits and fire-watch arrangements where required

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

Question 40 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. Only managers can raise such concernsD. Support and adjustments may help prevent errors and protect wellbeing

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

Question 41 of 50High risk activities

Why must demolition work be carefully planned?

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

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

Question 42 of 50Safety

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

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

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

Question 43 of 50Safety

Why is horseplay unacceptable on site?

A. It is allowed during breaksB. It is only prohibited for apprenticesC. It only causes delaysD. 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 44 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. Use it outdoors without further checksD. Check the assessment, label/SDS and required controls

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

Question 45 of 50Working environment

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

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

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

Question 46 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 47 of 50Working environment

What does a blue circular safety sign usually mean?

A. A mandatory action must be followedB. A fire extinguisher is nearbyC. A substance is toxicD. An action is prohibited

Correct answer: A. Blue circular signs normally communicate mandatory actions such as wearing specified PPE.

Question 48 of 50Environmental & specialist awareness

If you discover an unidentified drum or container, what should you do?

A. Smell the contentsB. Pour it into another containerC. Do not open or move it unnecessarily; report it and follow site proceduresD. Use it as a waste bin

Correct answer: C. Unknown substances should be treated cautiously until identified and assessed.

Question 49 of 50Working environment

What should you do if you do not understand a site instruction?

A. Ask for clarification before continuingB. Ignore it if you are experiencedC. Guess what it meansD. Copy what another worker is doing even if their task differs

Correct answer: A. You should understand the instruction and the risks before starting or continuing work.

Question 50 of 50Working environment

What is the main purpose of site welfare facilities?

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

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

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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.