FREE PRACTICE TEST 39

CSCS Mock Test 39: 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 explanationsEnvironmental Controls And Spill Response

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 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 2 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. Only managers can raise such concernsC. It is unrelated to safetyD. 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 3 of 50Environmental & specialist awareness

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

A. To increase drainage speedB. To prevent contaminants entering the drainage systemC. To stop rain completelyD. To store tools on top

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

Question 4 of 50Safety

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

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

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

Question 5 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. Move the nest yourselfC. Stop or follow the ecological controls and seek advice before disturbing themD. Use louder machinery

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

Question 6 of 50Working environment

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

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

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

Question 7 of 50High risk activities

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

A. Add extra people to the platformB. Work fasterC. Lower tyre pressureD. Stop and ensure the equipment is supported on suitable stable ground or designed measures

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

Question 8 of 50Safety

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

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

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

Question 9 of 50Working environment

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

A. Put a warning note nearby and carry onB. Assume someone else will fix itC. 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 10 of 50Safety

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

A. It can remove important protection against electric shockB. It makes tools too quietC. It changes the voltage colourD. It only affects battery life

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

Question 11 of 50Environmental & specialist awareness

What should you check before using a lifting accessory?

A. Whether it is the newest itemB. Identification, suitability, condition and any required examination statusC. Whether it belongs to your employerD. Only its colour

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

Question 12 of 50High risk activities

Who should operate an excavator, telehandler or similar plant?

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

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

Question 13 of 50High risk activities

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

A. No, occupants should descend and loose items be secured before movingB. Yes, if moved slowlyC. Yes, if two people pushD. Only if the brakes are partly applied

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

Question 14 of 50High risk activities

What should you maintain when climbing a ladder?

A. Three points of contact where practicableB. One foot onlyC. Your body leaning far to one sideD. Both hands full of tools

Correct answer: A. Maintaining secure contact improves stability and reduces the chance of a fall.

Question 15 of 50Working environment

Why are toolbox talks used on construction sites?

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

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

Question 16 of 50Working environment

Why are exclusion zones set up around certain activities?

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

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

Question 17 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. Use the vehicle route insteadC. Climb over the materialsD. Leave it until the next delivery

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

Question 18 of 50Occupational health

What is a common early symptom of hand-arm vibration syndrome?

A. Temporary hair lossB. Improved grip strengthC. Tingling or numbness in the fingersD. Better circulation

Correct answer: C. Tingling, numbness and blanching of the fingers can be signs of vibration-related damage.

Question 19 of 50Environmental & specialist awareness

Why should plant engines not be left idling unnecessarily?

A. It prevents oil leaksB. It makes batteries last longerC. It improves air qualityD. It wastes fuel and increases emissions and noise

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

Question 20 of 50Environmental & specialist awareness

What should you do with batteries and other potentially hazardous small items?

A. Throw them into firesB. Put them in general food wasteC. Leave them outdoorsD. Place them in the designated waste/recycling stream

Correct answer: D. Batteries can contain hazardous materials and should follow the site's designated disposal route.

Question 21 of 50Environmental & specialist awareness

What should happen to concrete washout water?

A. It should be spread across soilB. It should be managed in a designated system and kept out of drains and watercoursesC. It should be poured into the nearest drainD. It is harmless once diluted

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

Question 22 of 50Occupational health

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

A. It makes filters last longerB. It can prevent an effective seal against the faceC. It only affects hard hatsD. It increases oxygen levels

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

Question 23 of 50Environmental & specialist awareness

Why is environmental incident reporting important?

A. Only to calculate wagesB. It is unnecessary for small sitesC. It allows prompt control, clean-up and prevention of recurrenceD. It replaces spill response

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

Question 24 of 50Occupational health

Why should contaminated work clothing not be taken into clean eating areas?

A. It can spread hazardous dusts or substancesB. It makes the room warmerC. It damages mobile phonesD. It is only a company image issue

Correct answer: A. Segregating contaminated clothing helps prevent secondary exposure by ingestion or transfer.

Question 25 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 26 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. Keep routes clear and deal with spills, cables and waste promptlyC. Only clean areas that visitors can seeD. Walk more quickly through congested areas

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

Question 27 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 28 of 50Occupational health

What does COSHH relate to?

A. Controlling vehicle parkingB. Controlling exposure to substances hazardous to healthC. Setting wage ratesD. Managing scaffold inspections

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

Question 29 of 50Occupational health

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

A. Lift quickly before you get tiredB. Twist your back to get momentumC. Assess the load, route and whether mechanical help or assistance is neededD. Carry it above shoulder height

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

Question 30 of 50High risk activities

What should you check before using a ladder?

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

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

Question 31 of 50Environmental & specialist awareness

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

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

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

Question 32 of 50High risk activities

Why are overhead power lines dangerous to cranes and plant?

A. They make radios noisyB. Electricity can arc or conduct through equipment even without direct contactC. They reduce fuel efficiencyD. They only interfere with GPS

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

Question 33 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 34 of 50Working environment

What does a yellow triangular safety sign normally indicate?

A. A warning or hazardB. A prohibitionC. A safe condition or first-aid pointD. A mandatory action

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

Question 35 of 50Working environment

Why should near misses be reported?

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

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

Question 36 of 50Environmental & specialist awareness

Why should noisy work be planned carefully near neighbours?

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

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

Question 37 of 50Environmental & specialist awareness

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

A. They reduce concrete strengthB. They always block toiletsC. 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 38 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 39 of 50High risk activities

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

A. Directly behind the counterweightB. On the machine stepsC. Outside the machine's operating and crush zonesD. Between the machine and a fixed wall

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

Question 40 of 50Safety

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

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

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

Question 41 of 50Occupational health

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

A. Safety Data SheetB. TimesheetC. Delivery driver's licenceD. Site map only

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

Question 42 of 50Safety

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

A. Remove the safety guardB. Hit it to make it work normallyC. Increase the speedD. Stop using it and report/check the defect

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

Question 43 of 50High risk activities

What is a key hazard in a confined space?

A. Excess floor spaceB. Mobile phone receptionC. A dangerous atmosphere, including low oxygen or toxic gasesD. Too much daylight

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

Question 44 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 make tools twice as powerfulC. They can reduce the severity of electric-shock risk compared with standard mains voltageD. They are waterproof

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

Question 45 of 50Occupational health

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

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

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

Question 46 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 47 of 50Safety

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

A. They are only required during inspectionsB. They reduce productivity onlyC. They are optional for experienced workersD. They are designed to reduce exposure to dangerous movement or conditions

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

Question 48 of 50Safety

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

A. Collect all your toolsB. Stop work and follow the site's evacuation procedureC. Finish the current task firstD. Wait for smoke to appear

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

Question 49 of 50Working environment

Why should designated pedestrian routes be used around moving plant?

A. They are only for visitorsB. They help separate people from vehicle movementsC. They remove the need for high-visibility clothingD. They are usually the shortest route

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

Question 50 of 50Safety

What is the purpose of a first aider?

A. To give appropriate immediate assistance until further medical help is availableB. To replace emergency servicesC. To prescribe medicationD. To diagnose every illness

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

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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.