FREE PRACTICE TEST 27

CSCS Mock Test 27: 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 explanationsCoshh, Rpe And Hazardous Substances

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 toe boards fitted to many work platforms?

A. To mark smoking areasB. To replace guardrailsC. To increase platform heightD. To help prevent tools and materials being kicked or falling from the edge

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

Question 2 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 3 of 50Occupational health

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

A. To prevent hearing damageB. To reduce accidental ingestion or transfer of contaminantsC. To reduce vibrationD. To improve grip strength

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

Question 4 of 50Safety

Where should flammable materials be kept?

A. In designated storage away from ignition sources, following site rulesB. Next to heaters so they stay dryC. In escape routesD. Under stairways used for evacuation

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

Question 5 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 6 of 50Working environment

What do green safety signs commonly identify?

A. Safe conditions such as emergency exits or first aidB. Mandatory PPEC. Electrical voltageD. Prohibited activities

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

Question 7 of 50High risk activities

Why are overhead power lines dangerous to cranes and plant?

A. They reduce fuel efficiencyB. They make radios noisyC. Electricity can arc or conduct through equipment even without direct contactD. They only interfere with GPS

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

Question 8 of 50High risk activities

Why are banksmen used for some vehicle movements?

A. To help control movements where the driver has restricted visibilityB. To inspect wagesC. To replace vehicle brakesD. To speed up reversing

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

Question 9 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 10 of 50Occupational health

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

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

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

Question 11 of 50Environmental & specialist awareness

What is the purpose of a spill kit?

A. To test concrete strengthB. To repair electrical toolsC. To clean PPE onlyD. 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 12 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. A warning sign onlyD. High-visibility clothing only

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

Question 13 of 50Working environment

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

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

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

Question 14 of 50Safety

When is it appropriate to try to use a fire extinguisher?

A. Whenever any fire is visibleB. Only after the fire alarm stopsC. Only if you are trained, it is safe and you have a clear escape routeD. If you can stand between the fire and the exit

Correct answer: C. Life safety comes first; extinguishers should only be used when trained and conditions are safe.

Question 15 of 50High risk activities

What should you do if a scaffold appears incomplete or has missing guardrails?

A. Use it if you stay near the wallB. Add a rope as a handrail yourselfC. Do not use it and report the defectD. Use it only below the first lift

Correct answer: C. Incomplete scaffolds can expose users to falls; they should not be used until made safe.

Question 16 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 17 of 50Environmental & specialist awareness

Why should chemical containers remain correctly labelled?

A. So users know the contents, hazards and handling requirementsB. Labels are only for delivery driversC. It increases shelf lifeD. Unlabelled containers are safer

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

Question 18 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. Use effective extraction or water suppression at sourceC. Work faster to reduce exposure timeD. Open a nearby door only

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

Question 19 of 50Working environment

Why should designated pedestrian routes be used around moving plant?

A. They are usually the shortest routeB. They help separate people from vehicle movementsC. They are only for visitorsD. They remove the need for high-visibility clothing

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

Question 20 of 50Environmental & specialist awareness

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

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

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

Question 21 of 50Safety

Why must emergency equipment remain accessible?

A. Access is optional on small sitesB. It is only used during inspectionsC. It is used for tool storageD. 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 22 of 50Occupational health

What should you do if you unexpectedly disturb material that you suspect may contain asbestos?

A. Stop work, avoid further disturbance and report itB. Keep working but wear glovesC. Sweep up the dustD. Put the material in a normal waste skip

Correct answer: A. Suspected asbestos should not be disturbed; stop work and follow the site's asbestos procedures.

Question 23 of 50Safety

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

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

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

Question 24 of 50Environmental & specialist awareness

Why are exclusion zones used around overhead lifting?

A. To create a rest areaB. To keep vehicles cleanC. To improve radio receptionD. To prevent people entering areas where loads or objects could fall or swing

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

Question 25 of 50Occupational health

What does COSHH relate to?

A. Controlling vehicle parkingB. Controlling exposure to substances hazardous to healthC. Managing scaffold inspectionsD. Setting wage rates

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

Question 26 of 50Working environment

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

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

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

Question 27 of 50Working environment

What should you do if you are asked to carry out a task you have not been trained or authorised to do?

A. Try it once to gain experienceB. Do it only if no supervisor is watchingC. Explain that you are not competent or authorised and seek instructionD. Ask another untrained worker to help

Correct answer: C. Workers should only undertake tasks for which they are competent, trained and authorised where required.

Question 28 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. Drag it across an access routeC. Try to lift it once to test yourselfD. Throw it onto a trolley

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

Question 29 of 50Safety

Why are reduced-voltage systems such as 110 V commonly used on construction sites?

A. They remove the need for electrical inspectionsB. They can reduce the severity of electric-shock risk compared with standard mains voltageC. They are waterproofD. They make tools twice as powerful

Correct answer: B. Reduced-voltage supplies can reduce shock risk, but equipment still needs correct use and maintenance.

Question 30 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. Support and adjustments may help prevent errors and protect wellbeingC. It is unrelated to safetyD. Only managers can raise such concerns

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

Question 31 of 50Environmental & specialist awareness

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

A. To contain leaks or spillsB. To keep containers warmerC. To improve ventilationD. To provide seating

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

Question 32 of 50Safety

What is the safest approach to trailing electrical leads?

A. Cover them with loose cardboardB. Run them through standing waterC. Stretch them tightly across doorwaysD. Route or protect them so they do not create trip or damage hazards

Correct answer: D. Cables should be managed to prevent trips, crushing, cuts and water exposure.

Question 33 of 50Working environment

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

A. Arrange for the obstruction to be cleared and keep the route usableB. Leave it until the next deliveryC. Use the vehicle route insteadD. Climb over the materials

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

Question 34 of 50Occupational health

Why is health surveillance used for some construction hazards?

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

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

Question 35 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 reduce nuisance and comply with site/local controlsD. To eliminate the need for hearing protection

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

Question 36 of 50High risk activities

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

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

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

Question 37 of 50Working environment

What does a yellow triangular safety sign normally indicate?

A. A warning or hazardB. A mandatory actionC. A prohibitionD. A safe condition or first-aid point

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

Question 38 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 39 of 50Occupational health

Why is asbestos dangerous?

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

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

Question 40 of 50Environmental & specialist awareness

How should hazardous waste be handled?

A. Washed into drainsB. Burned on siteC. Segregated, labelled and disposed of through the correct authorised routeD. Mixed with general waste

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

Question 41 of 50Working environment

Why are exclusion zones set up around certain activities?

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

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

Question 42 of 50Environmental & specialist awareness

Why is environmental incident reporting important?

A. It is unnecessary for small sitesB. It replaces spill responseC. It allows prompt control, clean-up and prevention of recurrenceD. Only to calculate wages

Correct answer: C. Reporting helps limit impacts and supports corrective action.

Question 43 of 50Environmental & specialist awareness

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

A. To stop rain completelyB. To store tools on topC. To prevent contaminants entering the drainage systemD. To increase drainage speed

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

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 50Environmental & specialist awareness

Why should plant engines not be left idling unnecessarily?

A. It improves air qualityB. It wastes fuel and increases emissions and noiseC. It prevents oil leaksD. It makes batteries last longer

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

Question 46 of 50Safety

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

A. They reduce productivity onlyB. They are designed to reduce exposure to dangerous movement or conditionsC. They are only required during inspectionsD. They are optional for experienced workers

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

Question 47 of 50High risk activities

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

A. Continue slowlyB. Stop until communication is re-establishedC. Reverse to where you last saw themD. Sound the horn and keep moving

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

Question 48 of 50High risk activities

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

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

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

Question 49 of 50High risk activities

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

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

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

Question 50 of 50Safety

Why should emergency stop controls be kept unobstructed?

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

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

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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.