- Q1. What is the minimum legal height of a guardrail on a working platform?
Answer: 950 mm above the working platform (Work at Height Regulations 2005). Rationale: Top guardrail minimum height 950 mm; intermediate guardrail at 470 mm or toe-board at 150 mm minimum
- Q2. Who is responsible for health and safety on a UK construction site?
Answer: Everyone has a duty under the Health and Safety at Work Act 1974; the principal duty-holder is the principal contractor Rationale: HSWA 1974 imposes duties on employers, employees, and the self-employed
- Q3. The maximum manual-handling weight recommended for a single person is:
Answer: There is no absolute legal weight; the Manual Handling Operations Regulations 1992 require risk assessment; the INDG manual-handling guidance suggests 25 kg as the rough threshold for one person. Rationale: MHOR 1992
- Q4. What is the legal minimum PPE for working on a construction site?
Answer: Hard hat, hi-viz vest/jacket, safety boots with steel toe caps, and gloves. Rationale: Personal Protective Equipment at Work Regulations 1992
- Q5. What is the first thing to do if you discover a fire on site?
Answer: Raise the alarm and warn others; if safe, attack the fire; otherwise evacuate. Rationale: Site fire-procedure priority is to alert others
- Q6. The "RIDDOR" regulations require employers to report:
Answer: Reportable injuries, diseases, and dangerous occurrences (RIDDOR 2013). Rationale: Specified injuries, over-7-day incapacitation, occupational diseases, and dangerous occurrences must be reported
- Q7. A scaffold inspection is required:
Answer: Before first use, after any event likely to affect stability, and at least every 7 days until dismantled. Rationale: Work at Height Regulations 2005 inspection rules
- Q8. What is the legal limit for noise exposure averaged over an 8-hour day?
Answer: 85 dB(A) (Lower Exposure Action Value); 87 dB(A) is the Upper Exposure Action Value. Rationale: Control of Noise at Work Regulations 2005
- Q9. COSHH stands for:
Answer: Control of Substances Hazardous to Health Regulations 2002. Rationale: COSHH assessments are required for any substance hazardous to health
- Q10. If you see an unmarked white container on site, you should:
Answer: Do not touch or move it; report it to the site supervisor. Rationale: Unknown substances may be hazardous
- Q11. A "permit to work" is required for:
Answer: Hot work (welding, grinding), confined-space entry, electrical isolation, and work at height above certain thresholds. Rationale: Permit-to-work controls high-risk activities
- Q12. Asbestos was banned in the UK in:
Answer: 1999 (all forms of asbestos banned in November 1999). Rationale: Asbestos (Prohibitions) Regulations 1999, amended 2005
- Q13. What colour is the safety sign for "warning"?
Answer: Yellow (triangular with black symbol). Rationale: Yellow/black = warning signs under the Health & Safety (Safety Signs and Signals) Regulations 1996
- Q14. The colour code for a fire extinguisher suitable for electrical fires is:
Answer: Red (the entire extinguisher is red in the UK). Rationale: Black = CO2, Blue = dry powder, Cream = foam, Red = water; CO2 or dry powder extinguishers are used on electrical fires
- Q15. Working at heights above what height requires edge protection?
Answer: Any height where a fall would cause personal injury (Work at Height Regulations 2005). Rationale: WAHR 2005 requires edge protection where a person could fall 2 metres or more
- Q16. A "confined space" is defined as:
Answer: A space that is substantially enclosed, with a reasonably foreseeable risk of serious injury from hazardous substances or conditions (e.g., lack of oxygen). Rationale: Confined Spaces Regulations 1997
- Q17. The most common cause of fatal accidents on construction sites is:
Answer: Falls from height. Rationale: HSE statistics consistently cite falls from height as the leading fatal-injury category
- Q18. A typical ladder angle for safe access is:
Answer: 75° (1 unit out for every 4 units up). Rationale: HSE ladder-safety guidance
- Q19. Excavation support is required when the depth exceeds:
Answer: Any depth where there is a risk of collapse (typically 1.2 m in normal ground; all excavations require assessment). Rationale: Construction (Design and Management) Regulations 2015
- Q20. The maximum hand-arm vibration exposure (HAV) trigger level (8-hour average) is:
Answer: 2.5 m/s² A(8) (action value); 5.0 m/s² A(8) is the limit value. Rationale: Control of Vibration at Work Regulations 2005
- Q21. A "near miss" should be:
Answer: Reported to the site supervisor so it can be investigated and prevented. Rationale: RIDDOR and best-practice reporting
- Q22. If a worker is electrocuted and is in contact with a live source, the FIRST action is:
Answer: Do not touch the casualty; isolate the source by switching off the supply if safe. Rationale: Rescuer safety first
- Q23. The colour of the gas cylinder for oxygen is:
Answer: Black (with a white shoulder). Rationale: BOC and HSE cylinder-colour convention
- Q24. The "five steps to a risk assessment" are:
Answer: (1) Identify hazards, (2) Decide who might be harmed and how, (3) Evaluate the risks and decide on controls, (4) Record findings and implement controls, (5) Review and update. Rationale: Management of Health and Safety at Work Regulations 1999
- Q25. The minimum temperature of drinking water provided on site should be:
Answer: Cool but not ice cold (typically 10–15 °C). Rationale: Workplace (Health, Safety and Welfare) Regulations 1992.
Booking, fees, and 2026 changes
- Book via CITB. The official booking portal is cscs.uk.com or citb.co.uk/hse-test. The 2026 fee is £21 per Operative or Labourer test; £28 for other CSCS tests (CITB, 2026).
- What to bring. Photo ID (passport or UK driving licence) and your CSCS card-application confirmation.
- Retake. You can retake the HS&E test after 24 hours; no annual cap.
- Languages. The test is available in English; some centres offer Welsh and Polish translations for verbal content.
- What happens next. Pass certificate is valid 2 years; you then apply for the matching CSCS card at cscs.uk.com.
8-week prep plan
A proven cadence that scales to any starting level — adjust hours, not the sequence:
- Weeks 1–2 — Diagnostic + base content. Take a full-length timed diagnostic. Score it. Identify the bottom-three sections. Spend 6–8 hours/week on foundational topics (formulas/grammar/reading pacing). Free official practice tests are the best starting material.
- Weeks 3–4 — Skill building. Switch to a structured book or course. Daily practice questions with active review (re-visit every missed question the next day). Add a weekly timed section. Hours: 8–10/week.
- Weeks 5–6 — Full practice tests. One full timed test per weekend + a 60-minute review session analyzing every wrong answer. Mid-week: timed sections only on the weak sections. Hours: 10–12/week.
- Weeks 7–8 — Sim + taper. Two full timed tests per week under strict test-day conditions (same start time, same breaks, same allowed items). Light review the final 48 hours. Hours: drop to 6 hours the final week.
Free resources: Official test-body practice tests (highest fidelity). Khan Academy (for SAT digital). Test-maker mobile apps for on-the-go drills.
Paid resources: Use a single recent-edition prep book from a major publisher. Avoid courses older than 2 years; test format changes.
What to do next
- Bookmark the official test-body calendar page; dates + registration windows post 12+ months out.
- Pull together your testing-day ID and approved calculator (if applicable) the week before.
- Reach for the prep book that matches your weakest section; don't try to read every book.
- Book your seat at the first sitting that fits — early dates give you a retake cushion if needed.
Frequently asked questions — see top of page
The 7 FAQs cover the operative vs skilled-worker test, the 90% pass mark, retakes, booking fees, CSCS card application, validity, and the relationship between the CSCS test and NVQ qualifications.
Resources and next steps
For official study material, download the CITB HS&E test revision book (free PDF) and the CITB "Toolbox Talks" mobile app. Pair with this guide's 25 questions for a 2-week study plan. Once you pass, apply for the matching CSCS card at cscs.uk.com.
Photo: Brandon Torres, Public Domain (NASA), via NASA Image and Video Library (https://images.nasa.gov/details/ACD26-0007-006)
Fazlur Rahman
