FREE PRACTICE TEST 12

CSCS Mock Test 12: 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 explanationsPpe, Hazards And Safe Systems Of Work

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 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 2 of 50Working environment

What is the main purpose of site welfare facilities?

A. To provide suitable toilets, washing, drinking water and rest facilitiesB. To store hazardous chemicalsC. To provide free toolsD. To replace first-aid arrangements

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

Question 3 of 50Occupational health

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

A. Dry sweeping can put fine dust back into the airB. It damages broomsC. It creates static onlyD. It makes the floor too shiny

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

Question 4 of 50Working environment

What does a blue circular safety sign usually mean?

A. A fire extinguisher is nearbyB. A substance is toxicC. An action is prohibitedD. A mandatory action must be followed

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

Question 5 of 50Environmental & specialist awareness

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

A. Sweep dry dust into the roadB. Increase vehicle speedsC. 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 6 of 50Safety

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

A. To reserve equipment for one tradeB. To make equipment run fasterC. To record working hoursD. To prevent equipment being energised unexpectedly during work

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

Question 7 of 50Working environment

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

A. It removes the need for permitsB. It means PPE is no longer requiredC. It allows each trade to ignore the othersD. It helps coordinate hazards and prevents conflicting activities

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

Question 8 of 50Environmental & specialist awareness

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

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

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

Question 9 of 50Environmental & specialist awareness

What is a sensible control when refuelling plant?

A. Use the designated area/process, avoid overfilling and have spill controls availableB. Refuel next to an open drainC. Leave the nozzle unattendedD. Smoke nearby so you can see wind direction

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

Question 10 of 50Safety

Where should flammable materials be kept?

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

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

Question 11 of 50High risk activities

Why are overhead power lines dangerous to cranes and plant?

A. They only interfere with GPSB. They reduce fuel efficiencyC. Electricity can arc or conduct through equipment even without direct contactD. They make radios noisy

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

Question 12 of 50High risk activities

Why are toe boards fitted to many work platforms?

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

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

Question 13 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. Keep the trigger pressedC. Remove the guard permanentlyD. Isolate the tool from its power source

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

Question 14 of 50Safety

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

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

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

Question 15 of 50Working environment

What is a method statement mainly used for?

A. Ordering materials from suppliersB. Recording holiday entitlementC. Listing employee salariesD. Setting out a safe sequence and method for carrying out work

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

Question 16 of 50Environmental & specialist awareness

Why should site lighting be directed carefully at night?

A. To increase fuel useB. To provide safe illumination while reducing glare and nuisance to neighbours and road usersC. To replace barriersD. To make wildlife easier to attract

Correct answer: B. Lighting should support safe work without creating glare, distraction or unnecessary environmental impact.

Question 17 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. Put the material in a normal waste skipC. Keep working but wear glovesD. Sweep up the dust

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

Question 18 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. Pour the contents into a drainD. Keep people away, follow the spill procedure and report it

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

Question 19 of 50High risk activities

What should you check before using a ladder?

A. That it has paint marksB. That it is the longest ladder on siteC. That it is suitable, in good condition and set up securelyD. That someone used it yesterday

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

Question 20 of 50Safety

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

A. Only after the fire alarm stopsB. If you can stand between the fire and the exitC. Whenever any fire is visibleD. Only if you are trained, it is safe and you have a clear escape route

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

Question 21 of 50Safety

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

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

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

Question 22 of 50Occupational health

Why must respiratory protective equipment be suitable for the hazard?

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

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

Question 23 of 50Environmental & specialist awareness

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

A. They only affect drinking water on siteB. They may flow directly to watercourses and cause pollutionC. They always block toiletsD. They reduce concrete strength

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

Question 24 of 50Occupational health

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

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

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

Question 25 of 50Occupational health

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

A. It makes filters last longerB. It increases oxygen levelsC. It can prevent an effective seal against the faceD. It only affects hard hats

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

Question 26 of 50Environmental & specialist awareness

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

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

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

Question 27 of 50High risk activities

If a vehicle operator cannot see you, what should you assume?

A. They can hear youB. They will automatically stopC. High-visibility clothing makes you visible from every angleD. They may move without knowing you are there, so stay clear and gain acknowledgement before approaching

Correct answer: D. Never rely on being seen; establish safe communication before entering a vehicle's operating area.

Question 28 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. Wash it into a surface-water drainC. Ignore small spillsD. 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 29 of 50Working environment

What should you do if a floor opening is uncovered?

A. Step around it and say nothingB. Cover it with loose cardboardC. Mark it with paint onlyD. Prevent access and report it so suitable protection can be restored

Correct answer: D. Openings should be physically protected or access prevented because a fall can cause serious injury.

Question 30 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 31 of 50Occupational health

What can repeated skin contact with wet cement cause?

A. Dermatitis and chemical burnsB. Vibration white fingerC. Heat exhaustion onlyD. Hearing loss

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

Question 32 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 33 of 50Working environment

Why should materials be stored securely and tidily?

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

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

Question 34 of 50Occupational health

How can vibration exposure from power tools be reduced?

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

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

Question 35 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 spread across soilD. It should be managed in a designated system and kept out of drains and watercourses

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

Question 36 of 50Working environment

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

A. Ignore it if you are experiencedB. Copy what another worker is doing even if their task differsC. Ask for clarification before continuingD. Guess what it means

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

Question 37 of 50High risk activities

Why is a hot-work permit used on some sites?

A. To confirm specified fire and safety precautions are in placeB. To record the welder's wagesC. To allow smoking in the work areaD. To replace fire extinguishers

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

Question 38 of 50Environmental & specialist awareness

Why should chemical containers remain correctly labelled?

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

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

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. A plank across the topC. A warning sign onlyD. High-visibility clothing only

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

Question 40 of 50Safety

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

A. Pull them away with bare handsB. Move the cable with a metal toolC. Pour water on the equipmentD. Isolate the electrical supply before touching the person

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

Question 41 of 50Safety

Why should water not be used on live electrical equipment?

A. It makes alarms louderB. It creates asbestosC. It always damages concreteD. 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 42 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. It changes the colour of the ear defendersD. Poor fit can greatly reduce the protection provided

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

Question 43 of 50High risk activities

What is a major hazard of fragile roofs?

A. A person can fall through the roof surfaceB. They attract lightningC. They always contain asbestosD. They cannot get wet

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

Question 44 of 50Occupational health

Why is health surveillance used for some construction hazards?

A. To decide who can take breaksB. To detect early signs of work-related ill health where appropriateC. To replace risk controlsD. To measure productivity only

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

Question 45 of 50Safety

Before using a portable electrical tool, what should you check?

A. That the lead is as long as possibleB. That it is the heaviest tool availableC. That it appears in good condition and any required inspection status is currentD. That the casing has your initials

Correct answer: C. Pre-use checks can identify obvious damage before the tool is energised.

Question 46 of 50High risk activities

When should work at height be avoided?

A. Only when it rainsB. Whenever the task can reasonably be done from a safe position without working at heightC. Never; ladders are always acceptableD. Only above five metres

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

Question 47 of 50Working environment

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

A. Only the health and safety managerB. Only the person who created the hazardC. Only a visiting inspectorD. Anyone who notices the hazard

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

Question 48 of 50High risk activities

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

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

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

Question 49 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. Only read the emergency noticeboardD. Start work immediately if you know the trade

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

Question 50 of 50Occupational health

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

A. Only wear protection when machinery stopsB. Wear the specified hearing protectionC. Use headphones insteadD. Ignore the sign if you are there briefly

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

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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.