Free NEBOSH Certificate in Hazardous Substances (COSHH) Exam Questions and Answers
NEBOSH Certificate in Hazardous Substances (COSHH) is part of NEBOSH qualifications from NEBOSH, the National Examination Board in Occupational Safety and Health. NEBOSH qualifications are taught by accredited Learning Partners and marked by NEBOSH's own external examiners, with the General Certificate the standard entry qualification for health and safety roles.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 10, 2026
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Question #1
What does COSHH stand for?
Please select an optionIncorrectCorrect answer: C
COSHH stands for Control of Substances Hazardous to Health.
Was this answer correct?Question #2
Which of these is a primary aim of COSHH regulations?
Please select an optionIncorrectCorrect answer: D
The primary aim is to reduce exposure to hazardous substances.
Was this answer correct?Question #3
In a risk assessment, what is the first step?
Please select an optionIncorrectCorrect answer: D
The first step in a risk assessment is to identify hazards.
Was this answer correct?Question #4
What should be done if a hazardous substance is identified?
Please select an optionIncorrectCorrect answer: B
If a hazardous substance is identified, it should be assessed for risk.
Was this answer correct?Question #5
Which of the following is NOT a requirement under COSHH?
Please select an optionIncorrectCorrect answer: C
Reporting incidents is not explicitly required under COSHH regulations.
Was this answer correct?Question #6
What is the primary purpose of COSHH?
Please select an optionIncorrectCorrect answer: A
The primary purpose of COSHH is to control health risks associated with hazardous substances.
Was this answer correct?Question #7
Which of the following is considered a hazardous substance?
Please select an optionIncorrectCorrect answer: A
Acetone is considered a hazardous substance due to its flammability and health effects.
Was this answer correct?Question #8
When should employers assess the risks of hazardous substances?
Please select an optionIncorrectCorrect answer: D
Employers should assess the risks before hazardous substances are used to implement controls.
Was this answer correct?Question #9
What is an example of a control measure under COSHH?
Please select an optionIncorrectCorrect answer: C
Personal protective equipment is a control measure to protect workers from hazardous substances.
Was this answer correct?Question #10
Which regulation complements COSHH by addressing workplace safety?
Please select an optionIncorrectCorrect answer: C
RIDDOR (Reporting of Injuries, Diseases, and Dangerous Occurrences Regulations) complements COSHH.
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Other NEBOSH certifications
- NEBOSH Certificate in Workplace Health and Wellbeing (opens in a new tab)
- NEBOSH International General Certificate in Occupational Health and Safety (opens in a new tab)
- NEBOSH Certificate in Occupational Hygiene and Risk Control (opens in a new tab)
- NEBOSH National Certificate in Oil and Gas Operational Safety (opens in a new tab)
- NEBOSH HSE Certificate in Ergonomics (opens in a new tab)
- NEBOSH National Diploma for Occupational Health and Safety Management Professionals (opens in a new tab)
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FAQ
Learn More: https://www.nebosh.org.uk/
- Q1: What is the NEBOSH Certificate in Hazardous Substances (COSHH) exam?
- A: NEBOSH Certificate in Hazardous Substances (COSHH) is a NEBOSH certification exam. Judging by the questions in our bank, it concentrates on coshh, hazardous, substances, exposure and substance.
- Q2: What topics does the NEBOSH Certificate in Hazardous Substances (COSHH) exam cover?
- A: Questions in our NEBOSH Certificate in Hazardous Substances (COSHH) bank cluster around coshh, hazardous, substances, exposure, substance, employers, hazard and safety. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for NEBOSH Certificate in Hazardous Substances (COSHH)?
- A: Work through the NEBOSH Certificate in Hazardous Substances (COSHH) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real NEBOSH Certificate in Hazardous Substances (COSHH) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat NEBOSH Certificate in Hazardous Substances (COSHH). Answers are verified and updated weekly.
- Q5: Where do I register for the NEBOSH Certificate in Hazardous Substances (COSHH) exam?
- A: Register through NEBOSH directly at https://www.nebosh.org.uk/. Exampractice is not affiliated with NEBOSH and does not administer the exam.
- Q6: Is there a free NEBOSH Certificate in Hazardous Substances (COSHH) sample?
- A: Yes. Every NEBOSH Certificate in Hazardous Substances (COSHH) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.