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NEBOSH Construction practice questions

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Question 1Construction health and safety management

Under the CDM Regulations 2015, which duty holder has the primary role of coordinating health and safety during the construction phase of a project involving more than one contractor?

  1. The CDM adviser
  2. The client
  3. The principal contractor Correct answer.
  4. The principal designer

Explanation

Where a project involves more than one contractor, the client must appoint a principal contractor in writing. The principal contractor plans, manages, monitors and coordinates the construction phase, including the construction phase plan and site induction arrangements.

Question 2Construction health and safety management

A client commissioning a project with two separate contractors asks when a construction phase plan must be in place. What is the correct requirement?

  1. Before the principal contractor takes possession of the site and before construction begins Correct answer.
  2. Within 14 days of the first contractor starting work on site
  3. Only when the project is notifiable to the enforcing authority
  4. At practical completion, as part of the handover pack

Explanation

The construction phase plan must be drawn up before the construction phase begins and before the principal contractor takes possession of the site. It is a live document that is reviewed and updated as the project evolves, not something produced retrospectively.

Question 3Construction health and safety management

Which document must a client ensure is prepared for a notifiable project so that future users can manage the structure safely?

  1. The health and safety file Correct answer.
  2. The site induction record
  3. The construction phase plan
  4. The pre-construction information pack

Explanation

The health and safety file is the record of information needed to manage risks during subsequent use, maintenance, refurbishment or demolition. The principal designer normally prepares it, and the client must ensure it is kept available.

Question 4Construction health and safety management

During excavation for foundations, a competent person inspects the supported sides at the start of each shift. Which legal basis most directly requires this inspection regime?

  1. The Control of Substances Hazardous to Health Regulations 2002
  2. The Provision and Use of Work Equipment Regulations 1998
  3. The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013
  4. The Construction (Design and Management) Regulations 2015, which require inspections of excavations Correct answer.

Explanation

CDM 2015 requires that excavations be inspected by a competent person at the start of each shift and after any event likely to have affected stability. Reports of these inspections must be recorded and retained.

Question 5Construction health and safety management

A site manager is planning demolition of a two-storey building next to a live road. Which control measure should be established first in the hierarchy of risk reduction?

  1. Brief operatives on exclusion zones before work starts
  2. Use remote-controlled plant so workers are removed from the collapse zone Correct answer.
  3. Provide hearing protection for operatives using breakers
  4. Erect full-height debris netting and fans

Explanation

The hierarchy of control starts with eliminating or reducing exposure at source. Using remote-controlled demolition plant removes people from the danger area, which is a more reliable control than PPE or administrative measures.

Question 6Construction health and safety management

A principal contractor is reviewing a scaffold that has been altered by a subcontractor. What is the minimum competence requirement for the person who inspects and certifies the scaffold before it is returned to use?

  1. A competent person with the knowledge and experience to identify defects relevant to the scaffold type Correct answer.
  2. The subcontractor's own operatives who made the alteration
  3. Any site supervisor who holds a current CSCS card
  4. The principal designer who specified the scaffold

Explanation

Scaffolds must be inspected by a competent person before first use, after alteration, and at intervals not exceeding seven days. Competence means the person has the training, knowledge and experience to recognise defects in that type of scaffold.

Question 7Construction health and safety management

A worker is asked to enter a confined drainage chamber to clear silt. Which combination of controls best reflects the required hierarchy before entry?

  1. Test the atmosphere once at the top of the chamber and enter if readings are normal
  2. Supply breathing apparatus and a harness, then enter with a standby person
  3. Avoid entry by using remote jetting equipment from outside the chamber Correct answer.
  4. Issue a permit to work and rely on the operative to withdraw if they feel unwell

Explanation

Confined space work should first avoid entry where reasonably practicable, for example by using remote or long-handled equipment. Only where entry is unavoidable should atmosphere testing, permit systems, rescue arrangements and breathing apparatus be relied upon.

Question 8Construction health and safety management

Which statement best describes the purpose of pre-construction information under CDM 2015?

  1. It is the client's written confirmation that the project is notifiable
  2. It replaces the need for a construction phase plan on small projects
  3. It provides designers and contractors with existing health and safety information about the site and project Correct answer.
  4. It records the accidents that occurred during the previous phase of the project

Explanation

Pre-construction information is the existing health and safety information about the site and the project that the client must provide to designers and contractors. It allows them to identify and manage risks during design and planning.

Question 9Construction health and safety management

A designer specifies a roof-light that must be cleaned regularly. To comply with the design duty to eliminate foreseeable risks to maintainers, what is the most effective design decision?

  1. Add a method statement requirement for harness use during cleaning
  2. Include a note in the health and safety file that cleaning is hazardous
  3. Locate the roof-light where it can be cleaned safely from a permanent walkway with edge protection Correct answer.
  4. Specify a fragile roof-light and add warning signage on the roof

Explanation

Designers must eliminate foreseeable risks so far as is reasonably practicable, and design is most effective when it removes the need for hazardous access altogether. Providing safe permanent access with edge protection reduces reliance on PPE and procedures.

Question 10Construction health and safety management

What is the key difference between a hazard and a risk in the context of construction site management?

  1. A hazard applies only to plant; a risk applies only to people
  2. A hazard is assessed by the client; a risk is assessed by the contractor
  3. A hazard is the likelihood of harm; a risk is the source of potential harm
  4. A hazard is the source of potential harm; a risk is the likelihood and severity of harm arising from it Correct answer.

Explanation

A hazard is something with the potential to cause harm, such as an open excavation or a rotating blade. Risk combines the likelihood of that harm occurring with its severity, which is what risk assessment evaluates.

Question 11Construction health and safety management

A subcontractor's method statement for a steel erection job does not mention how members will be stabilised before bolting. What should the principal contractor do?

  1. Reject the method statement and require a revised version addressing temporary stability Correct answer.
  2. Accept the method statement and address the issue during the site induction
  3. Allow work to start while a revised document is drafted in parallel
  4. Forward it to the client for approval before work starts

Explanation

The principal contractor must satisfy itself that the method statement adequately controls the risks before work begins. Temporary stability of steelwork is a significant structural risk, so the document must be corrected and reviewed before work starts.

Question 12Construction health and safety management

Which arrangement best demonstrates that a principal contractor is meeting the duty to consult and engage the workforce on health and safety matters?

  1. Displaying the company health and safety policy in the site office
  2. Distributing a monthly safety newsletter to all site personnel
  3. Holding regular tool-box talks where operatives raise and discuss site hazards and controls Correct answer.
  4. Requiring operatives to sign an acknowledgement of the site rules

Explanation

Consultation requires a genuine two-way exchange in which workers can raise concerns and influence decisions. Tool-box talks with active discussion provide that engagement, whereas one-way communication does not.

Question 13Construction health and safety management

A near-miss occurs when a load slips from a crane hook but no one is injured. Which statement about recording and investigation is most appropriate?

  1. It should be recorded and investigated because it reveals a failure in lifting controls Correct answer.
  2. It only needs reporting to the enforcing authority under RIDDOR
  3. It should be logged by the crane operator alone and filed with maintenance records
  4. No action is needed because no injury or damage resulted

Explanation

Near-misses are free lessons: they show that a control has failed before harm occurs. Recording and investigating them allows the underlying cause, such as a faulty sling or poor slinging practice, to be corrected.

Question 14Construction health and safety management

A site has a high turnover of groundworks labour. Which control is most directly aimed at ensuring new workers understand site-specific hazards before starting work?

  1. A copy of the company health and safety policy issued with the starter pack
  2. A toolbox talk scheduled for the end of the first week
  3. A requirement to read the construction phase plan in their own time
  4. A recorded site induction covering site layout, emergency arrangements and local hazards Correct answer.

Explanation

Site induction is the mechanism for briefing new arrivals on site-specific matters such as traffic routes, emergency procedures, welfare and local hazards. It should be recorded so the principal contractor can demonstrate it took place.

Question 15Construction health and safety management

Which of the following best describes the purpose of a permit-to-work system for hot works on a construction site?

  1. To formally authorise specific high-risk work under defined conditions and record that controls are in place Correct answer.
  2. To replace the need for a fire risk assessment in the work area
  3. To transfer legal responsibility for fire safety from the principal contractor to the operative
  4. To provide a general record of all maintenance activity on site

Explanation

A permit-to-work is an administrative control that authorises a defined task under specified precautions, such as removing combustibles and providing fire watch. It documents that the controls have been considered and applied before work starts.

Question 16Construction health and safety management

During a site walk, a manager notes operatives working at height from a scaffold without guardrails on one elevation. Applying the work at height hierarchy, which action is most appropriate?

  1. Record the observation and raise it at the next safety meeting
  2. Instruct the operatives to keep away from the open edge while working
  3. Stop the work and have guardrails installed before work resumes Correct answer.
  4. Issue harnesses and lanyards to the operatives so they can continue

Explanation

The work at height hierarchy requires collective protection such as guardrails before personal fall-arrest measures. Where collective protection is missing, the work should stop until it is provided.

Question 17Construction health and safety management

What is the primary purpose of the F10 notification to the enforcing authority?

  1. To register the principal contractor for VAT on construction services
  2. To inform the enforcing authority that a notifiable construction project is about to start Correct answer.
  3. To obtain building regulations approval before work starts
  4. To record the accident history of the principal contractor

Explanation

The F10 notification tells the enforcing authority about a project that meets the notifiability threshold, allowing them to target inspections. It is submitted by the client, usually via the principal contractor or principal designer.

Question 18Construction health and safety management

A principal contractor is assessing a subcontractor for a high-risk package. Which evidence most reliably demonstrates the subcontractor's health and safety competence?

  1. Membership of a trade association
  2. A low accident frequency rate quoted in marketing material
  3. Evidence of relevant experience, competent supervision and arrangements for managing the specific risks Correct answer.
  4. A written statement in the tender confirming commitment to safety

Explanation

Competence is judged on the combination of knowledge, experience, training and the organisational arrangements to manage the actual risks of the work. Evidence specific to the package is far stronger than general claims.

Question 19Construction health and safety management

Which of the following is the most effective control for reducing the risk of vehicle-pedestrian collisions in a busy site compound?

  1. Physically separating pedestrian routes from vehicle routes with barriers and gates Correct answer.
  2. Displaying a 5 mph speed limit sign at the compound entrance
  3. Requiring operatives to wear high-visibility clothing at all times
  4. Briefing drivers on the need to watch for pedestrians

Explanation

Physical separation removes the interaction between people and vehicles and is a higher-order control. Signs, briefings and high-visibility clothing all rely on behaviour and awareness, which can fail.

Question 20Construction health and safety management

What does the term 'reasonably practicable' require a duty holder to consider?

  1. The views of the workforce alone
  2. The balance between the risk and the cost, time and effort of controlling it, with gross disproportion required to justify inaction Correct answer.
  3. Whether the control measure has been used previously on similar projects
  4. Only whether a control measure is technically possible

Explanation

Reasonably practicable requires weighing the risk against the sacrifice needed to control it. Unless the sacrifice is grossly disproportionate to the benefit, the control should be implemented.

Question 21Construction health and safety management

A principal designer is reviewing a design that requires deep basement excavation close to a public footpath. Which action best reflects the principal designer's duty?

  1. Identify the risk and coordinate design decisions that reduce the impact on the public and workers Correct answer.
  2. Record the risk in the health and safety file after completion
  3. Specify a method statement for the excavation and supervise it on site
  4. Leave the temporary works design entirely to the contractor without comment

Explanation

The principal designer must coordinate design work to ensure risks are managed and must consider hazards such as proximity to the public. They should work with the contractor on temporary works interfaces rather than ignore them.

Question 22Construction health and safety management

Which record must be kept for statutory inspections of excavations and how long should it be retained?

  1. A report kept for five years after the project finishes
  2. A report kept for three months after the work is complete Correct answer.
  3. A verbal handover recorded in the site diary
  4. A report kept until the excavation is completed and backfilled

Explanation

Reports of statutory inspections of excavations must be kept for three months after the work is finished. This allows the enforcing authority to review compliance if an incident is investigated.

Question 23Construction health and safety management

A worker reports a damaged electrical cable supplying a site tower crane. What is the correct immediate action?

  1. Tape the damaged section and continue operating the crane
  2. Log the defect and continue until the end of the shift
  3. Isolate the supply, secure the area and arrange repair by a competent electrician before use Correct answer.
  4. Ask the crane operator to monitor the cable during lifts

Explanation

Damaged electrical equipment must be taken out of service, isolated and repaired by a competent person before further use. Continuing to operate risks electric shock and fire.

Question 24Construction health and safety management

Which statement correctly describes the requirement for welfare facilities on a construction site?

  1. Welfare can be provided at a nearby public facility instead of on site
  2. Suitable welfare, including toilets, washing and drinking water, must be provided from the start of the project Correct answer.
  3. Welfare is required only for directly employed workers, not subcontractors
  4. Welfare must be provided only where the project lasts more than 30 days

Explanation

Suitable and sufficient welfare facilities, including sanitary conveniences, washing facilities and drinking water, must be provided from the commencement of the project. They must be available to everyone working on site.

Question 25Construction health and safety management

A site manager is investigating why operatives repeatedly bypass a guard on a bench saw. Which approach best reflects a positive safety culture?

  1. Increase supervision to catch operatives who bypass the guard
  2. Add a warning sign next to the guard
  3. Examine the task design and guard usability to understand and remove the reason for bypassing Correct answer.
  4. Discipline the operatives for breaching site rules without further enquiry

Explanation

A positive safety culture looks for the underlying cause of unsafe behaviour rather than blaming individuals. If a guard is routinely bypassed, the task or equipment design is likely making safe working difficult.

Question 26Construction health and safety management

Under CDM 2015, which party has the primary duty to ensure that a construction phase plan is prepared before construction work begins?

  1. The client
  2. The CDM co-ordinator
  3. The principal designer
  4. The principal contractor Correct answer.

Explanation

Regulation 12 of CDM 2015 places the duty on the principal contractor to draw up a construction phase plan before the construction phase begins, and to revise it as work progresses. The plan must record the arrangements for managing health and safety on site and the site-specific significant risks.

Question 27Construction health and safety management

A client appoints a principal contractor for a project involving more than 30 workers on site at peak and lasting eight months. Which action must the client take to comply with CDM 2015 notification requirements?

  1. Ask the principal designer to submit the notification with the building control application
  2. Notify the enforcing authority using the F10 process before construction begins Correct answer.
  3. Wait until the construction phase plan is complete and then notify
  4. Notify only if a notifiable accident later occurs on the project

Explanation

A project is notifiable when construction work lasts longer than 30 working days with more than 20 workers simultaneously, or exceeds 500 person-days. The client must ensure the project is notified to the enforcing authority before construction begins, using the F10 notification.

Question 28Construction health and safety management

Which document must a principal contractor provide to contractors tendering for work so they can understand the significant site risks before pricing the job?

  1. The pre-construction information Correct answer.
  2. The health and safety file
  3. The construction phase plan
  4. The site induction record

Explanation

Pre-construction information is the client's and principal designer's collection of existing information about the site and its hazards, passed to those tendering so they can plan and price work realistically. It must be relevant, project-specific and proportionate.

Question 29Construction health and safety management

A principal contractor is deciding how to allocate resources to control risks on a large refurbishment. Which principle best reflects the general hierarchy of control required by the Management of Health and Safety at Work Regulations 1999?

  1. Provide personal protective equipment first because it is quick to issue and easy to enforce
  2. Eliminate the hazard, then reduce risk at source, then apply collective protective measures before relying on personal protective equipment Correct answer.
  3. Apply controls in whatever order is cheapest to implement across the project
  4. Rely on training and worker awareness as the primary means of controlling risk

Explanation

The hierarchy requires risks to be avoided or eliminated where possible, then combated at source, then reduced by collective measures, with personal protective equipment as a last resort. Cost or convenience cannot reverse that order, though cost may be weighed against risk in deciding what is reasonably practicable.

Question 30Construction health and safety management

A worker is using a petrol-driven cut-off saw to cut paving slabs in a partially enclosed yard. Which control combination best addresses the principal health hazard from this task?

  1. Ear defenders and safety goggles only
  2. A longer blade and a higher engine speed
  3. Wet suppression of dust combined with suitable respiratory protective equipment and exclusion of others from the area Correct answer.
  4. A face shield and gauntlets only

Explanation

Cutting silica-containing paving produces respirable crystalline silica, which can cause silicosis and lung cancer, so water suppression at the cutting point plus suitable RPE and segregation are the key controls. Hearing and eye protection are also needed but do not address the dust hazard.

Question 31Construction health and safety management

Which statement correctly describes the legal status of a method statement on a construction site?

  1. It is a legally prescribed form that must be submitted to the enforcing authority before work starts
  2. It is only required for work carried out by the principal contractor's own employees
  3. It replaces the need for a risk assessment because it describes the controls
  4. It is a site-specific document describing the sequence and controls for a task, and deviations require review before work continues Correct answer.

Explanation

A method statement sets out how a specific task will be carried out safely, including sequence, controls and responsibilities, and must be reviewed if conditions change. It supports and implements the risk assessment rather than replacing it, and applies to all contractors on site.

Question 32Construction health and safety management

A subcontractor proposes to use a mobile elevating work platform on a site with overhead power lines nearby. Which control measure should take priority in the hierarchy of control?

  1. Fit proximity alarms to the MEWP and instruct operators to keep clear
  2. Use a banksman to watch the MEWP whenever it is elevated
  3. Arrange with the electricity provider to divert or isolate the overhead lines before work starts Correct answer.
  4. Erect warning signs under the lines and brief operators on the danger

Explanation

Eliminating the hazard by diverting or isolating the overhead lines removes the risk of electrocution entirely and is the highest-order control. Signs, alarms and banksmen are useful supplementary measures but leave the hazard in place.

Question 33Construction health and safety management

During a site inspection, a manager finds that a subcontractor has removed a section of edge protection to move materials. What is the most appropriate immediate response?

  1. Issue replacement harnesses to the operatives so they can continue
  2. Stop the work in that area and have the edge protection reinstated before anyone resumes work at height Correct answer.
  3. Note the finding in the inspection report and raise it at the next progress meeting
  4. Ask the subcontractor to sign a disclaimer accepting the risk

Explanation

Removing edge protection creates an imminent risk of falling from height, so work in the affected area should stop until collective protection is restored. Recording the finding for later discussion leaves workers exposed in the meantime.

Question 34Construction health and safety management

A principal contractor wants to demonstrate that it is managing health risks, not only safety, on a project involving demolition of a building containing asbestos-containing materials. Which arrangement best demonstrates this?

  1. Relying on the original building drawings to identify where asbestos is likely to be present
  2. Commissioning a refurbishment and demolition asbestos survey, appointing a licensed contractor and verifying controls before work starts Correct answer.
  3. Asking the demolition contractor to confirm in writing that the building is asbestos-free
  4. Instructing operatives to wear disposable masks and damp down dust during demolition

Explanation

A refurbishment and demolition survey is required before intrusive work to locate asbestos that may be disturbed, and licensed work must be carried out under controlled conditions with verification of controls. Management of health risks depends on identifying the hazard and checking that controls are actually in place.

Question 35Construction health and safety management

Which record-keeping practice best supports the statutory inspection regime for a scaffold used by multiple trades over several months?

  1. Retain records only if an accident occurs involving the scaffold
  2. Record only that an inspection took place, with no details of defects
  3. Record the inspection findings, including defects and actions, and retain the records for at least three months after the scaffold is removed Correct answer.
  4. Keep inspection records until the end of the week in which they were made

Explanation

Scaffolds from which a person could fall two metres or more must be inspected at intervals not exceeding seven days and after events such as alteration or adverse weather. The written report must record defects and the action taken, and records should be retained for at least three months after the structure is removed.

Question 36Construction health and safety management

A site has a mixed workforce including several workers whose first language is not English. Which approach best ensures they understand the site's emergency arrangements?

  1. Provide induction and emergency information in a form and language each worker understands, then check understanding Correct answer.
  2. Ask their supervisor to translate the key points informally at the start of each shift
  3. Give each worker a written English leaflet and ask them to sign to confirm receipt
  4. Rely on English-language signage throughout the site as the sole means of communication

Explanation

Health and safety information must be provided in a form and language that workers can understand, and understanding should be verified rather than assumed. This applies to induction, emergency procedures and task-specific instructions.

Question 37Construction health and safety management

Which statement best explains the purpose of a health and safety file under CDM 2015?

  1. To list the names and qualifications of everyone who worked on the project
  2. To provide information needed for future construction work on the structure, such as its construction, maintenance and demolition Correct answer.
  3. To record the accidents and near-misses that occurred during the construction phase
  4. To evidence that the construction phase plan was followed

Explanation

The health and safety file is a record of information relevant to the future use, maintenance, alteration and demolition of the structure. It is prepared during the project and handed over to the client at completion so that later work can be planned safely.

Question 38Construction health and safety management

A principal contractor is reviewing a risk assessment for a task involving manual handling of heavy kerb stones. Which control should be considered first?

  1. Reduce the weight of each stone by ordering smaller units
  2. Provide manual handling training to the operatives
  3. Eliminate the manual handling by using mechanical lifting equipment Correct answer.
  4. Issue back supports and instruct workers to bend their knees

Explanation

The first step in controlling manual handling risk is to avoid the handling altogether, for example by using mechanical aids. Training, technique and PPE are lower-order measures that do not remove the load from the worker.

Question 39Construction health and safety management

Which statement best describes the purpose of consulting workers on health and safety matters under the Safety Representatives and Safety Committees Regulations 1977 and the Health and Safety (Consultation with Employees) Regulations 1996?

  1. To transfer responsibility for health and safety from the employer to the workforce
  2. To allow workers to vote on which control measures will be funded
  3. To satisfy an administrative requirement before site audits
  4. To give workers a meaningful opportunity to influence decisions about the risks and controls affecting their work Correct answer.

Explanation

Consultation requires employers to provide information and listen to workers' views before decisions are made about risks and the measures to control them. It does not transfer the employer's legal duties, which remain with the duty holder.

Question 40Construction health and safety management

An excavator is working near a public footpath that runs alongside a construction site. Which control best reflects the duty to protect members of the public?

  1. Restrict public access only during the hours when the excavator is operating
  2. Physically segregate the footpath from the work area with robust fencing and controlled crossing points Correct answer.
  3. Display warning signs telling pedestrians to stay alert
  4. Rely on the excavator operator to watch for pedestrians

Explanation

The site boundary must protect the public from site hazards, and physical segregation with controlled crossing points prevents pedestrians from entering the work area. Signs and operator vigilance are supplementary and cannot substitute for physical separation.

Question 41Construction health and safety management

A site manager is reviewing the arrangements for lifting operations involving a tower crane. Which arrangement best demonstrates compliance with the requirement for a safe system of work for lifting?

  1. A general instruction that all lifts are to be carried out slowly
  2. An inspection of the crane at the start of the project only
  3. A written lift plan prepared by a competent person, with a planned and supervised lifting operation and exclusion of personnel from the load path Correct answer.
  4. A verbal briefing to the slinger before each lift

Explanation

Lifting operations must be planned by a competent person, appropriately supervised and carried out by competent people, with the lift plan and exclusion zones controlling the risks. The plan should be proportionate to the complexity of the lift.

Question 42Construction health and safety management

Which statement best describes the role of a competent person when assessing the safety of an excavation?

  1. They confirm the excavation is safe once only, before work begins
  2. They inspect the excavation at the start of each shift and after events such as a fall of material or an explosion, and record the findings Correct answer.
  3. They sign off the project's final accounts
  4. They design the permanent foundations for the structure

Explanation

Excavations that people work in must be inspected by a competent person at the start of each shift and after any event likely to have affected their stability, with findings recorded. The inspection addresses supports, edges, access and the presence of services or water.

Question 43Construction health and safety management

A worker suffers a serious leg fracture after falling from a ladder on a construction site. Which action must the employer take first under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013?

  1. Record the incident in the accident book and take no further action
  2. Notify the enforcing authority of the specified injury without delay Correct answer.
  3. Wait until the worker returns to work before deciding whether to report
  4. Report the incident only in the annual accident statistics

Explanation

A fracture other than to fingers, thumbs or toes is a specified injury under RIDDOR 2013, and the responsible person must notify the enforcing authority without delay, followed by a written report within ten days. The accident book entry is a separate internal record.

Question 44Construction health and safety management

Which statement best describes the purpose of a site induction for new workers?

  1. To replace the need for task-specific training and supervision
  2. To assess whether the worker is competent to carry out their trade
  3. To provide site-specific information on hazards, rules and emergency arrangements and confirm the worker understands them Correct answer.
  4. To satisfy the client's insurance conditions

Explanation

Induction covers the particular site: its layout, hazards, site rules, welfare arrangements, emergency procedures and reporting systems, and understanding should be checked. It supplements rather than replaces trade competence and task-specific training.

Question 45Construction health and safety management

A principal contractor is planning site traffic routes for a project with deliveries, plant movement and pedestrian workers. Which measure is the most effective primary control for vehicle-pedestrian segregation?

  1. Limit vehicle speeds to 5 mph across the whole site
  2. Provide separate, clearly marked pedestrian routes and vehicle routes with controlled crossing points Correct answer.
  3. Require drivers to sound their horns when reversing
  4. Instruct pedestrians to wear high-visibility clothing at all times

Explanation

Physical segregation of people and vehicles, with designated crossing points, removes the opportunity for collision and is the highest-order control. Speed limits, alarms and high-visibility clothing reduce the consequences or likelihood but do not separate the two.

Question 46Construction health and safety management

A subcontractor's operatives are observed working on a roof without any fall protection while the principal contractor's supervisor is on another part of the site. Which control failure does this most directly indicate?

  1. Inadequate supervision and monitoring of the subcontractor's work Correct answer.
  2. A defect in the F10 notification
  3. An error in the pre-construction information
  4. A failure of the health and safety file

Explanation

The principal contractor must monitor and supervise the construction phase so that agreed controls are actually applied. Unprotected roof work continuing without challenge indicates a failure of supervision and monitoring, not a documentation error.

Question 47Construction health and safety management

Which statement best describes the duty of a designer under CDM 2015 in relation to foreseeable risks during construction?

  1. Approve the principal contractor's method statements
  2. Design only for the finished structure and leave construction risk to the contractor
  3. Specify controls in the construction phase plan
  4. Eliminate foreseeable risks so far as is reasonably practicable and provide information about remaining significant risks Correct answer.

Explanation

Designers must eliminate foreseeable risks to anyone constructing, maintaining or using the structure so far as is reasonably practicable, and must provide information about significant residual risks. They do not manage the construction phase or approve method statements.

Question 48Construction health and safety management

A worker reports that a cable supplying a 110 V site transformer is showing exposed conductors. Which immediate action best reflects the correct response?

  1. Take the equipment out of service, isolate it and report it for repair by a competent person Correct answer.
  2. Tape over the exposed conductors and continue using the equipment
  3. Record the defect and continue until the end of the shift
  4. Move the transformer to a different location and continue working

Explanation

Damaged electrical equipment must be taken out of service immediately, isolated from the supply and not returned to use until repaired and tested by a competent person. Continuing to use it risks electric shock, burns or fire.

Question 49Construction health and safety management

A principal contractor is investigating why operatives repeatedly bypass a machine guard. Which approach best reflects an effective health and safety culture?

  1. Discipline the individuals involved and take no further action
  2. Issue a revised safety instruction and monitor for further breaches
  3. Remove the guard so that the practice is no longer a breach
  4. Investigate the underlying reasons, such as poor guard design or production pressure, and involve the operators in finding a solution Correct answer.

Explanation

Repeated bypassing of a guard often signals a design or work-system problem rather than simple disobedience, so investigating root causes and involving operators is more likely to produce a lasting fix. A positive culture encourages reporting and learning rather than blame.

Question 50Construction health and safety management

A site uses a permit-to-work system for entry into a deep pump chamber. Which feature is essential for the system to be effective?

  1. The permit is issued by an authorised person after the specified precautions are verified, and is formally closed out when the work ends Correct answer.
  2. The permit remains valid indefinitely once issued
  3. The permit is issued by the worker who will carry out the task
  4. The permit is kept in the site office and not shown to the workers entering

Explanation

An effective permit-to-work is issued by an authorised person only after the required precautions, such as isolation and atmosphere testing, have been verified. It is time-limited, displayed at the point of work and formally cancelled when the task is complete.