SMSTS practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.
Q21You notice repeated minor breaches of site rules by a subcontractor. What approach best reflects the purpose of health and safety law?
✓ Correct answer: A. Address the behaviour promptly and reinforce standards before a serious incident occurs
Health and safety law promotes proactive risk management. Early intervention helps prevent escalation and demonstrates effective control of the workplace. Why the other options are incorrect: • Ignore minor breaches until a serious issue arises: Waiting allows unsafe behaviours to become normalised. • Immediately remove the subcontractor from site: Immediate removal may be disproportionate without investigation. • Issue written warnings only after an accident: Post-incident action defeats the preventative purpose of the law. • Leave enforcement solely to the subcontractor’s supervisor: The site manager retains overall control of standards.
Q22A crane lift is planned using a complex lifting arrangement. You discover that no temporary works design check has been completed. What action should you take?
✓ Correct answer: A. Prevent the lift until the temporary works are properly designed and checked
Temporary works must be designed, checked, and implemented in accordance with legal duties under CDM and general health and safety law. Proceeding without a design check exposes workers to unacceptable risk. Why the other options are incorrect: • Allow the lift if the crane operator is competent: Competence does not replace the need for a proper temporary works process. • Proceed with the lift but restrict access around the area: Exclusion zones do not address the risk of structural failure. • Ask the subcontractor to sign a risk acceptance form: Risk acceptance forms do not override statutory duties. • Carry out the lift at reduced load without redesign: Reducing load does not eliminate the need for proper design approval.
Q23A subcontractor questions why environmental controls are necessary for minor spills. How should you respond?
✓ Correct answer: A. Explain that environmental legislation requires prevention of pollution regardless of scale
Environmental legislation aims to prevent pollution at source. Even small spills can cause harm and must be controlled. Why the other options are incorrect: • Agree that small spills are not legally significant: Legal duties apply regardless of perceived scale. • Allow spills provided they are cleaned up later: Delayed action may still result in pollution. • Leave environmental matters to specialist contractors: Site management retains responsibility for controls. • Apply controls only near watercourses: Environmental risk is not limited to watercourses.
Q24A contractor asks whether they can start work before the construction phase plan has been finalised. What is the correct legal position?
✓ Correct answer: A. Work must not start until an adequate construction phase plan is in place
Under CDM Regulations, a construction phase plan must be in place before work starts. This is a fundamental legal requirement. Why the other options are incorrect: • Work can start if risks appear minimal: Perceived low risk does not remove the legal requirement. • Only high-risk activities need to wait: The requirement applies to all construction work. • Work may start with verbal agreement: Verbal agreement does not meet statutory duties. • The plan can be completed during the first week of work: The plan must be completed prior to commencement.
Q25You are planning works adjacent to a public footpath. What is your primary legal consideration?
✓ Correct answer: A. Ensuring risks to members of the public are eliminated or adequately controlled
Health and safety legislation places a duty on duty holders to protect non-employees affected by the work. Public protection must be planned and implemented. Why the other options are incorrect: • Completing the work as quickly as possible to minimise exposure: Speed of work does not guarantee risk control. • Relying on warning signage alone: Signage alone is rarely sufficient protection. • Assuming the local authority manages public safety: The contractor retains responsibility for site-related risks. • Only considering risks during working hours: Risks may exist outside normal working hours.
Q26You are reviewing subcontractor competence records and find expired training certificates. What is the correct course of action?
✓ Correct answer: A. Prevent the individuals from carrying out the task until competence is confirmed
Those in control of construction work must ensure workers are competent. Allowing work without current evidence of competence breaches legal duties. Why the other options are incorrect: • Allow work to continue if experience is evident: Experience alone does not demonstrate current competence. • Permit work under additional supervision: Supervision does not remove the requirement for competence. • Accept certificates if renewal is booked: Booked renewal does not guarantee present competence. • Leave competence checks to the subcontractor: Responsibility for competence cannot be fully delegated.
Q27You discover that a subcontractor has brought their own electrical equipment onto site without evidence of inspection or testing. What should you do to comply with legal duties?
✓ Correct answer: A. Prevent the equipment being used until it has been checked and deemed safe
Electricity at Work Regulations require electrical equipment to be maintained in a safe condition. The manager must prevent use until suitable inspection and controls are confirmed. Why the other options are incorrect: • Allow its use if no visible damage is present: Absence of visible damage does not confirm electrical safety. • Permit use for short-duration tasks only: Duration of use does not reduce electrical risk. • Ask operatives to visually inspect the equipment themselves: Operatives are not responsible for formal inspection regimes. • Record the issue and review it during the next audit: Delaying action leaves workers exposed to immediate risk.
Q28You are managing a project where licensed asbestos removal is required. The removal contractor arrives without evidence of notification to the enforcing authority. What is the correct managerial response?
✓ Correct answer: A. Stop the work until confirmation of notification and compliance is provided
The Control of Asbestos Regulations require licensed work to be notified to the enforcing authority. Allowing work to proceed without notification would be a breach of legislation and the manager must prevent this. Why the other options are incorrect: • Allow removal to proceed if the contractor is licensed: A licence alone does not remove the requirement for formal notification. • Proceed with removal outside normal working hours: Time of work does not affect legal notification requirements. • Supervise the work closely to reduce risk: Supervision cannot compensate for non-compliance with statutory requirements. • Allow removal of only small sections at a time: Phasing the work does not remove the need for notification.
Q29You observe operatives manually handling heavy materials without mechanical aids, despite these being available on site. What is the correct managerial response?
✓ Correct answer: A. Stop the activity and require suitable mechanical aids or revised controls to be used
The Manual Handling Operations Regulations require risks to be avoided or reduced so far as reasonably practicable. Where mechanical aids are available, they should be used. Why the other options are incorrect: • Allow the task to continue if operatives are comfortable: Comfort does not negate the risk of injury. • Reduce the load size and continue work: Reducing load size may still leave avoidable risk. • Permit the task provided frequent breaks are taken: Breaks do not remove the underlying hazard. • Leave the decision to the subcontractor: Overall responsibility for safe systems remains with site management.
Q30You are informed that noise levels on site may exceed safe limits during planned works. What is the most appropriate action?
✓ Correct answer: A. Assess the noise risk and implement suitable controls before work starts
The Control of Noise at Work Regulations require risks from noise exposure to be assessed and controlled in advance. Controls must be planned before exposure occurs. Why the other options are incorrect: • Proceed with work and issue ear protection only: PPE alone may not sufficiently control exposure. • Limit exposure by shortening working hours: Shorter hours do not remove the need for assessment. • Rely on operatives to report hearing issues: Reactive reporting does not meet proactive legal duties. • Monitor noise levels after the work is complete: Controls must be in place before harm occurs.
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