TheoryNEBOSH Study Guide
Study for the NEBOSH with exam topics, practice questions, a free PDF, video walkthrough and timed mock exam links.
How to study for NEBOSH
- Read the topic list so you know what the exam is likely to cover.
- Answer the free practice questions and read every explanation.
- Download the PDF for offline review.
- Use timed mock exams when your untimed practice feels comfortable.
Topics to review
- Work health & safety law and duty of care
- Spotting site hazards and controlling risk
- Personal protective equipment (PPE)
- Emergency procedures and incident reporting
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Q1Which workplace outcome becomes more probable when employees misuse substances?
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✓ Correct answer: A rise in the number of accidents
Substance misuse impairs performance and awareness, making accidents significantly more likely to occur. Why the other options are incorrect: • Improved powers of concentration: Substance misuse diminishes concentration rather than enhancing it. • Greater levels of productivity: Productivity declines as a result of substance misuse, not improves. • More cautious and safer decision-making: Impaired judgement leads to riskier choices, not more careful or safer ones. • Better attendance and punctuality: Substance misuse is more commonly associated with higher absenteeism, not better attendance.
Q2Which measure best ensures that temporary electrical installations on site remain safe?
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✓ Correct answer: Carrying out regular inspections
Regular inspections of temporary electrical supplies confirm they are in safe condition and help prevent electric shock or fire. Why the other options are incorrect: • Adopting a casual clothing policy: Clothing policies address appearance, not the condition or safety of electrical installations. • Issuing holiday vouchers to staff: Holiday vouchers are a staff incentive and have no effect on electrical safety. • Organising team social events: Social events do not contribute to maintaining safe electrical supplies on site. • Installing decorative lighting: Decorative lighting is itself an electrical installation that requires inspection rather than being a safety control.
Q3Which condition is a recognised long-term health consequence of alcohol misuse?
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✓ Correct answer: Liver disease
Prolonged misuse of alcohol is strongly associated with liver disease, which can have serious consequences for a worker's long-term health. Why the other options are incorrect: • Noise-induced hearing loss: Hearing loss is associated with prolonged exposure to loud noise, not with alcohol misuse. • A sprained ankle: A sprained ankle is an acute musculoskeletal injury with no direct link to alcohol misuse. • Repetitive strain injury: Repetitive strain injury develops from repeated physical movements and is unrelated to alcohol consumption. • A skin rash: Skin rashes are generally caused by allergens or irritants, not by alcohol misuse.
Q4What risk is created when a worker steps onto a fragile roof?
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✓ Correct answer: Breaking through the roof surface and falling
Roofs made of fragile materials cannot bear a person's weight, creating a serious risk of the worker breaking through and falling. Why the other options are incorrect: • Enhanced air circulation: Air circulation is not a concern associated with walking on fragile roofs. • Increased light levels: Light levels play no role in the risk of falling through a fragile roof. • Elevated staff morale: Staff morale is unrelated to the structural hazards of fragile roofing. • Decreased noise levels: Noise levels are not connected to how strong or fragile a roof is.
Q5What precaution helps minimise the danger of lifting loads while working at height?
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✓ Correct answer: Power-assisted hoisting equipment
Power-assisted hoisting equipment reduces physical strain and lowers the chance of loads being dropped when working at elevation. Why the other options are incorrect: • Staff leisure vouchers: Leisure vouchers serve as staff rewards and have no bearing on load-lifting safety. • Workplace notice boards: Notice boards can inform workers but cannot physically stop loads from falling. • Clothing and uniform policies: Uniform policies relate to appearance and offer no protection against lifting risks. • Informal team gatherings: Informal gatherings aid communication but do nothing to control how loads are handled.
Q6Which aspect of an employee's cognitive performance is most directly harmed by drug misuse?
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✓ Correct answer: Ability to focus and sustain attention
Drug misuse directly impairs an employee's ability to concentrate, increasing the probability of mistakes and accidents occurring in the workplace. Why the other options are incorrect: • Muscular strength and physical endurance: Physical strength may be affected by drug misuse, but concentration is the cognitive function most directly undermined. • Annual leave entitlement: Annual leave entitlement is an employment right and is entirely unrelated to the cognitive effects of drug misuse. • Adherence to workplace dress code: Dress code compliance relates to workplace appearance standards and is not a measure of cognitive performance. • Accuracy of payroll and wage calculations: Payroll accuracy is an administrative and financial matter, not a function affected by drug misuse.
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