CPCS Theory Test – Construction Plant Competence Scheme — Questions and Answers
Question 1: What is the danger of working plant near a fuel storage tank?
- Risk of fire or explosion if the tank is struck or if plant creates sparks near leaked fuel (Correct answer)
- Only petrol tanks present explosion risk, not diesel tanks
- Fuel tanks only present a pollution risk, not a fire risk
- Fuel tanks are always buried and cannot be struck by plant
Correct answer: Risk of fire or explosion if the tank is struck or if plant creates sparks near leaked fuel
Fuel storage tanks contain flammable or combustible liquids. If struck by plant or if leaked fuel contacts ignition sources such as sparks, fire or explosion can result. Exclusion zones must be maintained around fuel tanks.
Question 2: What is the role of a banksman during a crane lifting operation?
- To attach and inspect the lifting accessories
- To operate the crane from the ground level
- To maintain the exclusion zone only
- To guide the crane operator using agreed signals when visibility is limited (Correct answer)
Correct answer: To guide the crane operator using agreed signals when visibility is limited
A banksman guides the crane operator using agreed signals — hand or radio — particularly when the operator cannot see the load or landing area. They do not operate the crane or attach loads.
Question 3: What does PUWER require regarding the stability of construction plant during use?
- The operator must manually hold the plant steady
- Plant must be positioned and stabilised to prevent unintended movement (Correct answer)
- Plant must always be on level ground with no exceptions
- Stability is only required during lifting operations
Correct answer: Plant must be positioned and stabilised to prevent unintended movement
PUWER requires that work equipment, including plant, is stabilised as necessary during use to prevent unintended movement that could create risk.
Question 4: Where should pre-use check records be kept?
- Sent to the hire company daily
- On site and available for inspection, typically in a plant inspection register (Correct answer)
- Kept only by the operator in their personal notes
- Submitted to the HSE after each check
Correct answer: On site and available for inspection, typically in a plant inspection register
Pre-use check records must be kept on site and available for inspection by supervisors, safety officers, and enforcement authorities. A plant inspection register is the standard approach.
Question 5: What is the primary purpose of PUWER in relation to construction plant?
- To set minimum productivity standards for plant operators
- To govern the training curriculum for plant operators
- To regulate the sale of new plant equipment
- To ensure work equipment is suitable, maintained, and used safely (Correct answer)
Correct answer: To ensure work equipment is suitable, maintained, and used safely
The primary purpose of PUWER is to ensure that all work equipment, including construction plant, is suitable for its purpose, properly maintained, and used safely to protect workers.
Question 6: What is an exclusion zone in the context of working near overhead power lines?
- A safe distance zone around overhead lines within which plant must not pass without authorisation (Correct answer)
- An exclusion zone is only required for 11 kV and above
- A zone that can be entered with the site manager's verbal permission
- A zone only relevant to cranes over 50 tonnes
Correct answer: A safe distance zone around overhead lines within which plant must not pass without authorisation
An exclusion zone around overhead power lines defines the minimum distance plant must keep from the lines. The zone prevents flashover (electricity arcing to nearby conductive objects), which can be fatal.
Question 7: How does PUWER apply to hired or rented construction plant?
- PUWER only applies to plant owned by the employer
- PUWER does not apply to hired plant
- The hire company bears all PUWER responsibilities
- PUWER applies fully — the hirer must ensure it is safe and suitable before use (Correct answer)
Correct answer: PUWER applies fully — the hirer must ensure it is safe and suitable before use
PUWER applies regardless of ownership. The person with control of the plant — typically the hirer — must ensure it is safe, suitable, and compliant before use.
Question 8: When positioning a tracked excavator on a slope, which direction should the tracks face for maximum stability?
- It does not matter as long as the outriggers are deployed
- Perpendicular to the slope
- At a 45-degree angle to the slope
- Parallel to the slope with the drive sprockets uphill (Correct answer)
Correct answer: Parallel to the slope with the drive sprockets uphill
When working on a slope, the tracks should run up and down the slope (parallel) with the drive sprockets positioned uphill. This provides maximum ground contact and stability, and if the machine begins to slide, the operator has more control.
Question 9: Under LOLER, what must be included in a thorough examination report for lifting equipment?
- The examination report only needs the equipment's serial number
- Description of the equipment, date of examination, defects found, safe working load, and date of next examination (Correct answer)
- Only defects found during the examination
- Only the date and the examiner's name
Correct answer: Description of the equipment, date of examination, defects found, safe working load, and date of next examination
A LOLER thorough examination report must include a description and identification of the equipment, the date of examination, defects found, the SWL, and the date by which the next examination is required.
Question 10: Why is it important to check that all lights and beacons are working during a pre-use check?
- Lights are only required for night operations
- Beacons are decorative and not a safety item
- Lights are checked for insurance purposes only
- They warn other workers and traffic of the plant's presence and movement (Correct answer)
Correct answer: They warn other workers and traffic of the plant's presence and movement
Working lights and beacons are essential for visibility and warning others of the plant's presence, particularly when reversing or operating in low-visibility conditions. They are a key safety requirement.
Question 11: What is a lifting plan and when is it required?
- A plan required only for lifts over 10 tonnes
- A documented plan for a lifting operation, required for all crane lifts and complex operations (Correct answer)
- An informal verbal briefing before any lift
- A plan only required for lifts over public highways
Correct answer: A documented plan for a lifting operation, required for all crane lifts and complex operations
A lifting plan documents the method, equipment, personnel, communication, exclusion zones, and emergency arrangements for a lifting operation. LOLER requires planning for all lifting operations.
Question 12: What must be clearly marked on a telehandler's load chart?
- The safe working loads at various boom extensions and angles, with and without stabilisers (Correct answer)
- The fuel consumption per hour
- The operator's name and shift pattern
- The date the machine was last washed
Correct answer: The safe working loads at various boom extensions and angles, with and without stabilisers
The load chart must clearly display the machine's safe working loads at all combinations of boom extension length and angle. It must differentiate between operations with and without stabilisers deployed, as capacities differ significantly between these configurations.
Question 13: What is the most common cause of fatal accidents involving forward tipping dumpers on UK construction sites?
- Engine fires
- Brake failure on flat ground
- Overturning (Correct answer)
- Electrical short circuits
Correct answer: Overturning
Overturning is the leading cause of fatalities involving forward tipping dumpers. Contributing factors include travelling too fast, operating on slopes, uneven ground, overloading, and poor visibility. Seatbelts and ROPS (Roll Over Protection Structure) are critical safety features.
Question 14: What is a 'tandem lift' and what additional considerations apply?
- A lift where one crane follows another's path
- Any lift over 5 tonnes
- A lift using two cranes sharing the load — requires precise co-ordination and a detailed lifting plan (Correct answer)
- A lift where the same load is moved twice
Correct answer: A lift using two cranes sharing the load — requires precise co-ordination and a detailed lifting plan
A tandem lift uses two cranes to share the load. It requires precise co-ordination, detailed planning, and a competent appointed person because load distribution between cranes changes during the lift.
Question 15: Under LOLER, how often must a thorough examination of a crane or lifting accessory be carried out?
- Once at installation and then only after major repair
- Only when a defect is suspected
- At least every 12 months for most lifting equipment, or every 6 months if used to lift persons (Correct answer)
- Every 5 years
Correct answer: At least every 12 months for most lifting equipment, or every 6 months if used to lift persons
LOLER requires thorough examination of lifting equipment at least every 12 months (every 6 months if used to lift persons), or after exceptional circumstances such as damage or long periods out of use.
Question 16: Under PUWER, what must accompany any construction plant that poses specific risks?
- A daily log completed by the manufacturer
- An annual PUWER certificate
- A written risk assessment addressing those specific risks (Correct answer)
- A weekly checklist signed by a director
Correct answer: A written risk assessment addressing those specific risks
PUWER requires that where specific risks exist, a written risk assessment is produced and control measures are implemented and documented.
Question 17: What is the primary purpose of the dumper's skip retention device (skip prop or stay)?
- To increase the loading capacity
- To keep the skip in the raised position during tipping
- To improve the dumper's appearance
- To hold the skip safely in the raised position during maintenance underneath (Correct answer)
Correct answer: To hold the skip safely in the raised position during maintenance underneath
The skip retention device (prop or stay) is a mechanical support that holds the skip securely in the raised position when maintenance or inspection work is being carried out underneath. It prevents the skip from falling unexpectedly, which could crush someone working beneath it.
Question 18: What should be immediately available on site to deal with small plant fluid spills?
- Sand bags to redirect the flow
- Spill kits containing absorbent materials, suitable for the type of fluid involved (Correct answer)
- Only a first aid kit — spill kits are not required on construction sites
- A hosepipe to dilute and wash away the spill
Correct answer: Spill kits containing absorbent materials, suitable for the type of fluid involved
Spill kits containing appropriate absorbent materials must be available on site to contain and clean up small fluid spills from plant before they contaminate soil or enter drains and watercourses.
Question 19: What is required to upgrade from a red CPCS card to a blue CPCS card?
- Pass the relevant NVQ or SVQ assessment demonstrating competence in that plant category (Correct answer)
- Complete an additional classroom course
- Pass a higher-level theory test only
- Pay the upgrade fee and submit a photograph
Correct answer: Pass the relevant NVQ or SVQ assessment demonstrating competence in that plant category
Upgrading from red to blue requires passing the relevant NVQ (or SVQ in Scotland) assessment, which involves demonstrating practical competence in operating the specific plant category to national occupational standards.
Question 20: What is a 'crane mat' and when is it used?
- A mat used to protect the ground surface from oil contamination
- A rubber mat placed in the crane cab for operator comfort
- A large, heavy timber or steel mat placed under crane outriggers to spread the load on weak ground (Correct answer)
- A safety mat placed around the crane's perimeter
Correct answer: A large, heavy timber or steel mat placed under crane outriggers to spread the load on weak ground
Crane mats are large timber or steel platforms placed under crane outriggers to spread the point load over a larger area, reducing ground pressure to within the site's bearing capacity.
Question 21: What does the term 'in good repair' mean under PUWER?
- The plant is clean and visually presentable
- The plant is safe to operate and free from defects that could cause harm (Correct answer)
- The plant is under warranty
- The plant has recently been serviced by a manufacturer
Correct answer: The plant is safe to operate and free from defects that could cause harm
'In good repair' means the plant is mechanically sound, safe to operate, and free from defects that could create risk. It is a safety concept, not an aesthetic one.
Question 22: What must a forward tipping dumper be fitted with to protect the operator in the event of a rollover?
- An ejector seat
- A fire suppression system only
- A Roll Over Protection Structure (ROPS) and a seatbelt (Correct answer)
- Air conditioning
Correct answer: A Roll Over Protection Structure (ROPS) and a seatbelt
All forward tipping dumpers must be fitted with a ROPS (Roll Over Protection Structure) to maintain a survival space around the operator if the machine overturns. The operator must also wear the seatbelt at all times to remain within the ROPS protection zone.
Question 23: Which regulation complements PUWER specifically for lifting equipment on construction sites?
- RIDDOR — Reporting of Injuries, Diseases and Dangerous Occurrences
- CDM — Construction Design and Management Regulations
- LOLER — Lifting Operations and Lifting Equipment Regulations 1998 (Correct answer)
- COSHH — Control of Substances Hazardous to Health
Correct answer: LOLER — Lifting Operations and Lifting Equipment Regulations 1998
LOLER 1998 complements PUWER specifically for lifting equipment, adding requirements for thorough examination, lifting plans, and competent persons for all lifting operations.
Question 24: What does LOLER require regarding the competence of the appointed person for a lifting operation?
- They must be competent in planning and supervising lifting operations (Correct answer)
- They must be employed directly by the principal contractor
- They only need to be a CPCS card holder
- They must hold a crane operator's licence
Correct answer: They must be competent in planning and supervising lifting operations
The appointed person must be competent specifically in planning and supervising lifting operations. This is a separate competence from operating a crane and requires specialist knowledge.
Question 25: What colour is the emergency stop button required to be on construction plant machinery?
- Red (Correct answer)
- Yellow
- Green
- Blue
Correct answer: Red
Emergency stop buttons must be red, typically on a yellow background, in accordance with BS EN ISO 13850. This is a universal safety standard to ensure quick identification in an emergency.
Question 26: An operator's CPCS card has expired. Under PUWER, what is the consequence?
- They are exempt if they have five years' experience
- They cannot legally operate that category of plant until their competence is re-established (Correct answer)
- They must work under direct supervision only
- They may continue operating for up to three months while they renew
Correct answer: They cannot legally operate that category of plant until their competence is re-established
An expired CPCS card means the holder's current competence has not been verified. PUWER requires operators to be competent, so they cannot legally operate the relevant plant category without valid certification.
Question 27: A site manager asks a plant operator to use equipment outside its rated capacity. What should the operator do?
- Comply if the manager insists
- Try it carefully and assess the result
- Refuse and report the request to the appropriate authority (Correct answer)
- Comply only if it is a one-off situation
Correct answer: Refuse and report the request to the appropriate authority
Operating plant beyond its rated capacity is dangerous and illegal under PUWER. The operator has both a legal right and duty to refuse unsafe instructions.
Question 28: What is the purpose of an exclusion zone during a lifting operation?
- To define the area where the slinger must stand at all times
- To restrict access beneath and around suspended loads, protecting persons from falling load risk (Correct answer)
- To mark where the crane must park after the lift
- To indicate where slings should be stored
Correct answer: To restrict access beneath and around suspended loads, protecting persons from falling load risk
An exclusion zone prevents unauthorised persons from entering the area beneath or around a suspended load where they would be at risk if the load were to fall or swing.
Question 29: Before operating any construction plant on site, what must an operator hold as a minimum requirement under the CPCS scheme?
- A valid CPCS card for the relevant plant category (Correct answer)
- A site induction certificate only
- A first aid certificate
- A full driving licence
Correct answer: A valid CPCS card for the relevant plant category
The CPCS scheme requires operators to hold a valid CPCS card for the specific category of plant they intend to operate. This demonstrates they have been trained and assessed as competent for that particular machine.
Question 30: A colour-coded inspection tag system is commonly used for lifting accessories. What does a system of quarterly colour changes help to identify?
- The country of manufacture
- Which company owns the equipment
- The weight of the accessory
- Whether the lifting accessory has been inspected within the current period (Correct answer)
Correct answer: Whether the lifting accessory has been inspected within the current period
The colour-coded tag system uses a different colour for each quarter of the year. By checking the colour of the tag against the current quarter's colour, anyone on site can quickly verify whether the lifting accessory has been inspected within the required period without needing to check paperwork.
Question 31: What does checking the 'FOPS' on a plant machine refer to?
- Falling Object Protective Structure — protection from overhead falling objects (Correct answer)
- Fuel Oil Pressure System — hydraulic pressure gauge
- Final Operations Pre-Start — the last check before ignition
- Forward Operating Position Sensor — proximity alarm
Correct answer: Falling Object Protective Structure — protection from overhead falling objects
FOPS stands for Falling Object Protective Structure. It is a cab protection system that shields the operator from objects falling from above, and must be intact and undamaged before operation.
Question 32: What does PUWER say about the use of construction plant by young workers (under 18)?
- Young workers must not use plant unless they have received specific training and are adequately supervised (Correct answer)
- Young workers are completely prohibited from using any construction plant
- Young workers face the same requirements as adult workers with no additional considerations
- Young workers may use any plant if their parent or guardian consents
Correct answer: Young workers must not use plant unless they have received specific training and are adequately supervised
PUWER, combined with the Management of Health and Safety at Work Regulations, requires additional safeguards for young workers, including specific training and adequate supervision before they may use work equipment.
Question 33: What is the relationship between LOLER 1998 and PUWER 1998 in the context of lifting equipment?
- LOLER replaces PUWER entirely for lifting equipment
- PUWER only applies to non-lifting equipment
- Both apply — PUWER covers general equipment requirements while LOLER adds specific lifting requirements (Correct answer)
- They are different names for the same regulations
Correct answer: Both apply — PUWER covers general equipment requirements while LOLER adds specific lifting requirements
Both LOLER and PUWER apply to lifting equipment simultaneously. PUWER sets out general requirements for all work equipment (maintenance, training, guarding), while LOLER adds specific requirements for lifting operations and lifting equipment (planning, examination, load marking).
Question 34: What is the purpose of a 'slinging certificate' or 'rigger qualification'?
- It is a record of the lifts carried out by the rigger
- It certifies the slings themselves as fit for use
- It is a licence to operate a crane
- It demonstrates the holder's competence in selecting and attaching lifting accessories correctly (Correct answer)
Correct answer: It demonstrates the holder's competence in selecting and attaching lifting accessories correctly
A slinging certificate or rigger qualification demonstrates that the holder is competent to select appropriate lifting accessories and attach loads correctly, reducing the risk of load detachment or accessory failure.
Question 35: How often must lifting equipment that is used for lifting persons be thoroughly examined under LOLER?
- Every 12 months
- Every 24 months
- Only after an accident
- Every 6 months (Correct answer)
Correct answer: Every 6 months
Under LOLER Regulation 9, lifting equipment used for lifting persons must be thoroughly examined by a competent person at least every 6 months. This more frequent interval reflects the higher risk when people's lives depend directly on the equipment's integrity.
Question 36: Under LOLER, what is required after a crane has been involved in a significant incident or accident?
- Only a visual check by the site manager
- An inspection by the original manufacturer only
- The crane may continue if the operator confirms it feels undamaged
- A thorough examination by a competent person before it is returned to service (Correct answer)
Correct answer: A thorough examination by a competent person before it is returned to service
After a significant incident such as a collision, overturning, or load drop, the crane must undergo a thorough examination by a competent person before it is returned to service, to confirm its structural integrity.
Question 37: What is the CPCS category for a crawler crane?
- A04 (Correct answer)
- B02
- A60
- A09
Correct answer: A04
CPCS category A04 covers the Crawler Crane. Crawler cranes are large, tracked lifting machines used for heavy lifts and are distinct from mobile cranes (A02) and tower cranes (A04 is specifically crawler).
Question 38: How does the Control of Pollution Act 1974 relate to plant operations on construction sites?
- It gives local authorities power to control noise from plant operations on construction sites (Correct answer)
- It sets maximum speed limits for plant on public roads
- It controls plant exhaust emissions only
- It only applies to permanent industrial premises, not construction sites
Correct answer: It gives local authorities power to control noise from plant operations on construction sites
The Control of Pollution Act 1974 gives local authorities power to impose noise limits and operating hours on construction sites. Plant operators must comply with any noise conditions imposed under this Act.
Question 39: After completing a pre-use check with no defects found, what should the operator do with the check sheet?
- Sign it and retain it in the site plant register as a record (Correct answer)
- Send it to the plant hire company
- Discard it as no defects were found
- Give it to the site manager to countersign before starting
Correct answer: Sign it and retain it in the site plant register as a record
Even when no defects are found, the completed and signed pre-use check sheet must be retained in the site plant register. It provides a legal record that the check was carried out.
Question 40: Under PUWER, who is responsible for ensuring plant is safe to use?
- Only the plant operator
- The equipment manufacturer alone
- Only the site manager
- The employer and any person who has control of work equipment (Correct answer)
Correct answer: The employer and any person who has control of work equipment
Under PUWER, both the employer and any person who has control over work equipment share responsibility for ensuring it is safe to use.
Question 41: Who is the 'Appointed Person' in a crane lifting operation under BS 7121?
- The crane driver only
- The person responsible for planning and directing the lifting operation (Correct answer)
- The person who hired the crane
- The site security guard
Correct answer: The person responsible for planning and directing the lifting operation
The Appointed Person is the individual with overall responsibility for planning, supervising, and directing the lifting operation. They must be competent, have practical and theoretical knowledge of lifting, and ensure the lift plan is followed throughout the operation.
Question 42: What action should be taken if pre-use checks reveal a loose or damaged handrail on the plant's access ladder?
- Use the handrail carefully and monitor it during the shift
- Continue if you can access the cab without using the handrail
- Report it at the next weekly safety meeting
- Take the plant out of service until the handrail is secured or replaced (Correct answer)
Correct answer: Take the plant out of service until the handrail is secured or replaced
A loose or damaged handrail on an access ladder creates risk of a fall when mounting or dismounting the plant. It must be repaired before the plant is returned to service.
Question 43: When selecting a shackle for a lifting operation, what must be confirmed?
- The shackle is large enough to be visible from the crane cab
- The shackle is the most recently purchased on site
- The shackle matches the colour of the sling being used
- The shackle's SWL is equal to or exceeds the load to be applied, and it is in good condition (Correct answer)
Correct answer: The shackle's SWL is equal to or exceeds the load to be applied, and it is in good condition
The shackle's SWL must meet or exceed the load to be applied. It must also be in good condition — pin correctly secured, no significant wear, cracks, or deformation — before use.
Question 44: What does LOLER require for lifting equipment that has been out of service for an extended period?
- A thorough examination must be carried out before it is returned to service (Correct answer)
- Only a visual check is required
- The equipment must be sent to the manufacturer for inspection
- It may be returned to service immediately if the LOLER certificate has not expired
Correct answer: A thorough examination must be carried out before it is returned to service
Equipment that has been out of service for an extended period may have deteriorated. LOLER requires a thorough examination before it is returned to service, regardless of when the previous examination was.
Question 45: During a pre-use check, you find the fire extinguisher is missing from the cab. What should you do?
- Note it in the log and replace it next week
- Use a bucket of sand as a substitute
- Operate the plant — fire extinguishers are optional on plant
- Report it and ensure it is replaced before operating the plant (Correct answer)
Correct answer: Report it and ensure it is replaced before operating the plant
A fire extinguisher is required safety equipment on construction plant. Its absence means the plant lacks essential emergency response equipment and it must be replaced before operation.
Question 46: What should a dumper operator do when visibility is restricted while travelling on site?
- Stop, get a banksman to guide movements, or find an alternative route with better visibility (Correct answer)
- Turn off the headlights to avoid dazzling others
- Increase speed to clear the area quickly
- Sound the horn continuously and keep driving
Correct answer: Stop, get a banksman to guide movements, or find an alternative route with better visibility
When visibility is restricted (by the load, dust, weather, or site layout), the operator must stop and use a trained banksman to guide movements safely, or find an alternative route. Travelling blind is one of the most common causes of dumper-related struck-by incidents.
Question 47: What does LOLER require regarding records of thorough examinations?
- Records are optional if the equipment is within the manufacturer's warranty period
- Records only need to be kept by the examining body, not the equipment owner
- Records must be kept and made available for inspection — typically for at least 2 years for accessories and until the next examination for other equipment (Correct answer)
- Records only need to be kept if a defect was found
Correct answer: Records must be kept and made available for inspection — typically for at least 2 years for accessories and until the next examination for other equipment
LOLER requires examination records to be kept and made available for inspection. Lifting accessories records must be kept for at least two years; other lifting equipment records until the next examination.
Question 48: What is a 'lift supervisor' under LOLER and what are their responsibilities?
- The most senior person on site regardless of lifting knowledge
- The crane operator themselves
- A competent person responsible for supervising the lift, ensuring the plan is followed and the area is safe (Correct answer)
- Any CPCS cardholder on site
Correct answer: A competent person responsible for supervising the lift, ensuring the plan is followed and the area is safe
The lift supervisor is a competent person responsible for supervising the lifting operation, ensuring the lifting plan is followed, the exclusion zone is maintained, and any unsafe conditions are addressed.
Question 49: What is a 'headroom' check in the context of a lifting operation?
- A check only needed inside buildings
- Verifying there is sufficient vertical clearance along the entire lift path for the load and lifting accessories (Correct answer)
- Confirming the load height matches the delivery note
- Only checking the height of the crane itself
Correct answer: Verifying there is sufficient vertical clearance along the entire lift path for the load and lifting accessories
A headroom check verifies there is adequate vertical clearance along the entire travel path of the load — including for the lifting accessories above the load — to prevent collision with structures, cables, or other obstructions.
Question 50: What must a PUWER-compliant handover include when a different operator takes over a plant?
- Only the fuel level and hours clocked
- The site manager's verbal permission
- Communication of any defects, hazards or issues discovered during the previous shift (Correct answer)
- A complete restart of all pre-use checks from scratch without reference to previous notes
Correct answer: Communication of any defects, hazards or issues discovered during the previous shift
A safe handover must include communication of any defects, issues, or hazards noted during the previous shift so the incoming operator is fully informed before taking control.
Question 51: What must be done if a significant fuel spill from plant reaches a drain or watercourse?
- Clean up and dispose of waste in a nearby skip
- Stop the spill at source if safe, contain it, and report immediately to the Environment Agency and site supervisor (Correct answer)
- Dilute the fuel with water to reduce concentration
- Report it only if the watercourse is used for drinking water
Correct answer: Stop the spill at source if safe, contain it, and report immediately to the Environment Agency and site supervisor
A significant spill reaching a drain or watercourse is a serious environmental incident. Work to stop the spill at source, contain spread, and immediately report to the Environment Agency and site supervisor. Failure to report is an offence.
Question 52: What is the function of an anti-two-block device on a crane?
- It measures the load weight and displays it to the operator
- It locks the boom at a safe angle during transport
- It stops the hoist automatically before two-blocking occurs, preventing rope failure (Correct answer)
- It prevents the crane from travelling with a suspended load
Correct answer: It stops the hoist automatically before two-blocking occurs, preventing rope failure
An anti-two-block device detects when the blocks are approaching contact and automatically cuts the hoist function, preventing the catastrophic failure caused by two-blocking.
Question 53: What is the purpose of a test certificate for a new piece of lifting equipment?
- It confirms the equipment has been tested by the manufacturer and is safe for the specified SWL (Correct answer)
- It confirms the equipment is compliant with noise regulations
- It certifies the equipment for use in specific countries only
- It is a maintenance record from the manufacturer
Correct answer: It confirms the equipment has been tested by the manufacturer and is safe for the specified SWL
A test certificate from the manufacturer confirms that the equipment has been load-tested and is safe for use at the specified SWL. It is required before first use and must be kept with the equipment records.
Question 54: What risk does a pre-use check help prevent when plant has been left unattended overnight?
- Only fuel theft
- Only mechanical deterioration over time
- Vandalism, interference, damage from weather or animals, and unauthorised use (Correct answer)
- Pre-use checks have no specific overnight benefit
Correct answer: Vandalism, interference, damage from weather or animals, and unauthorised use
Overnight, plant can be vandalised, tampered with, or damaged by weather. Pre-use checks identify any such changes before the operator puts themselves and others at risk by operating a compromised machine.
Question 55: During a pre-use check, what should be inspected on all hoses and pipes?
- Only hoses in the engine compartment
- Only the main fuel pipe
- Condition, security of fittings, signs of leaks, chafing, or damage (Correct answer)
- Hoses are not part of a pre-use check
Correct answer: Condition, security of fittings, signs of leaks, chafing, or damage
All hoses and pipes — hydraulic, fuel, coolant, and air — must be inspected for leaks, damaged fittings, chafing, and kinking. Failed hoses cause sudden loss of hydraulic or engine function, both dangerous during operation.
Question 56: During a pre-use check, you find excessive play in the steering system. What action do you take?
- Drive slowly and use wide turns to compensate
- Take the plant out of service immediately — excessive steering play is a serious control defect (Correct answer)
- Report it at the end of the shift
- Adjust the steering yourself using the manufacturer's instructions
Correct answer: Take the plant out of service immediately — excessive steering play is a serious control defect
Excessive play in steering means the operator cannot accurately control direction, creating serious risk of collision or running over persons. The plant must be taken out of service immediately.
Question 57: What does PUWER stand for in the context of construction plant?
- Plant Under Work Equipment Regulations
- Plant Use and Work Environment Regulations
- Provision and Use of Work Equipment Regulations (Correct answer)
- Provision of Uniform Work Equipment Rules
Correct answer: Provision and Use of Work Equipment Regulations
PUWER stands for Provision and Use of Work Equipment Regulations 1998, which governs the safe use of machinery and plant on construction sites.
Question 58: Why is it dangerous to leave a suspended load unattended?
- Suspended loads are only a risk during active movement
- Unattended loads are only an issue in poor weather
- The crane cannot detect a problem without an operator present
- The load could fall if equipment fails, creating risk to anyone in the area without warning (Correct answer)
Correct answer: The load could fall if equipment fails, creating risk to anyone in the area without warning
A suspended load must never be left unattended. Equipment can fail suddenly, and without an operator present there is no one to respond. The load can fall without warning, striking anyone in the area.
Question 59: What information should be recorded when completing a pre-use check sheet?
- Date, plant identification, operator name, findings, and any defects noted (Correct answer)
- Only defects that prevent the plant from operating
- Only defects found — clear checks do not need recording
- Only the date and operator name
Correct answer: Date, plant identification, operator name, findings, and any defects noted
A complete pre-use check record includes the date, plant identification number, operator's name, findings for each check item, any defects identified, and the action taken in response.
Question 60: What is the purpose of a CPCS card in the context of PUWER compliance?
- It is a replacement for a risk assessment
- It demonstrates the holder's competence to operate specific plant categories (Correct answer)
- It is only required for supervisory roles
- It exempts the holder from pre-use checks
Correct answer: It demonstrates the holder's competence to operate specific plant categories
A CPCS card provides evidence that the cardholder has been assessed as competent in operating specific categories of plant, supporting PUWER's requirement for trained and competent operators.
Question 61: What should a slinger/signaller do immediately if they lose communication with the crane operator mid-lift?
- Use a mobile phone while directing the lift simultaneously
- Lower the load as quickly as possible without any signal
- Signal the operator to stop and do not resume until communication is fully restored (Correct answer)
- Continue the lift using hand signals only and hope the operator sees them
Correct answer: Signal the operator to stop and do not resume until communication is fully restored
If communication is lost, the slinger must signal stop immediately; the lift must not continue until effective communication is re-established to maintain safe control of the operation.
Question 62: Before attaching any sling to a load, what must the slinger/signaller check first?
- The sling's SWL, condition and current thorough examination certificate (Correct answer)
- That the site manager has given verbal approval
- The weather forecast for the day
- That the crane operator is ready
Correct answer: The sling's SWL, condition and current thorough examination certificate
The slinger must verify the sling's Safe Working Load (SWL), inspect it for defects, and confirm it has a valid thorough examination record before it is used.
Question 63: What does LOLER say about using construction plant (e.g. a telehandler) for lifting operations?
- It must be suitable for lifting, properly examined, and lifting operations planned by a competent person (Correct answer)
- Any plant can perform lifting operations without restriction
- Lifting with plant is only permitted for loads under 1 tonne
- Plant-based lifting requires daily hire company approval
Correct answer: It must be suitable for lifting, properly examined, and lifting operations planned by a competent person
LOLER applies fully when construction plant is used for lifting. The equipment must be suitable and thoroughly examined, and the lifting operation must be planned by a competent person.
Question 64: What does SWL stand for in the context of lifting accessories?
- Site Working Limit
- Structural Weight Limit
- Standard Weight Legislation
- Safe Working Load (Correct answer)
Correct answer: Safe Working Load
SWL stands for Safe Working Load, which is the maximum load a piece of lifting equipment is rated to handle under normal working conditions.
Question 65: What does it mean if a pre-use check sheet has a 'red tag' attached to the plant?
- The plant requires a full annual inspection soon
- The plant is reserved for a specific operator
- The plant is out of service and must not be used (Correct answer)
- The plant has been recently serviced
Correct answer: The plant is out of service and must not be used
A red tag (or out-of-service tag) indicates the plant has been identified as having a defect and is taken out of service. No one should operate the plant until the tag is removed by an authorised person after repair.
Question 66: Which of the following would you check as part of a plant pre-use inspection?
- The plant's registration documents and insurance
- Fluid levels, tyres or tracks, lights, controls, and safety devices (Correct answer)
- The site manager's signature on the work order
- Only the fuel level and engine oil
Correct answer: Fluid levels, tyres or tracks, lights, controls, and safety devices
A thorough pre-use check covers fluid levels (fuel, oil, coolant, hydraulic), tyres or tracks, lights, mirrors, controls, alarms, safety devices, and any visible structural damage.
Question 67: What should an operator do if a pre-use check reveals the travel alarm is not working?
- Rely on a banksman instead and continue working
- Operate slowly and sound the horn when reversing
- Take the plant out of service and report the defect (Correct answer)
- Continue working as the alarm is not always needed
Correct answer: Take the plant out of service and report the defect
A travel alarm warns nearby workers of plant movement. Its absence is a significant safety hazard requiring the plant to be taken out of service until the alarm is repaired.
Question 68: What is the maximum number of appointed signallers who should communicate with a crane operator at any one time?
- As many as needed
- Three
- One (Correct answer)
- Two
Correct answer: One
Only one appointed signaller should communicate with the crane operator at any one time to prevent confusion. If the crane needs to be directed by a different person, a formal handover of signalling duties must take place.
Question 69: Before starting a plant engine, what check should be carried out regarding persons in the area?
- Ensure all persons are clear of the machine and any potential movement area (Correct answer)
- Check that the site manager is present to authorise start-up
- Ensure all workers have their PPE visible
- Only check that the operator is in the cab
Correct answer: Ensure all persons are clear of the machine and any potential movement area
Before starting, the operator must ensure all persons are clear of the machine and any area where the plant may move. Starting an engine without this check risks crushing or striking someone unexpectedly.
Question 70: A pre-use check reveals the reversing camera on the plant is not working. How serious is this?
- Minor — report it but continue operating
- Serious — the reversing camera is a safety aid that reduces risk of striking persons behind the plant (Correct answer)
- Not serious — operators can reverse safely without cameras
- Only an issue if the plant operates in busy areas
Correct answer: Serious — the reversing camera is a safety aid that reduces risk of striking persons behind the plant
The reversing camera is a key safety aid that reduces the risk of striking persons in the blind spot behind the plant. Its failure must be reported and assessed, and additional precautions — such as a banksman — implemented.
CPCS Theory Test – Construction Plant Competence Scheme
The CPCS Theory Test assesses construction plant operators' knowledge of health and safety legislation, equipment pre-use checks, lifting operations (LOLER), equipment regulations (PUWER), and crane operations and signals required to hold a CPCS competence card.
Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds