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COSHH Awareness Prep

Control of hazardous substances assessment questions.

Written against the published specification.

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Pass mark 18/25 30 minutes HSE-aligned How many can I get wrong?
About this practice. Revision Robin is built and maintained by Bloor Engineering Ltd, a UK-registered company. Our COSHH Awareness Prep questions are written and reviewed in-house to match the current syllabus, each with a plain-English worked explanation. They are original practice material, not the official exam questions and not affiliated with or endorsed by HSE-aligned. Always confirm current test rules, fees and content with the official provider. See our Terms and Privacy.
Sit a full mock under the clock at least once. Nerves are half the battle.
Free practice questions
Try 3 real COSHH Awareness Prep questions
Have a go, then reveal the worked explanation. A taster from a bank of 223 original questions. Unlock for unlimited drills and full timed mocks.
Q1. What does COSHH stand for?
  • A.  Control of Substances Hazardous to Health
  • B.  Code of Safety for Hazardous Handling
  • C.  Control of Site Hazards and Health
  • D.  Classification of Substances Harmful to Humans
Show answer & explanation
✓ Answer: A. Control of Substances Hazardous to Health
COSHH is the Control of Substances Hazardous to Health Regulations 2002 (as amended). It is the main UK law regulating exposure to hazardous substances at work. The other options are invented phrases that do not correspond to any real regulation.
Q2. Why is skin absorption a particularly deceptive route of entry?
  • A.  It only affects the skin surface and never causes internal harm
  • B.  Some substances can pass through intact, undamaged skin into the bloodstream without any visible warning signs at the point of contact
  • C.  It always causes an immediate visible burn, so it is easy to detect
  • D.  Skin absorption cannot occur unless the skin already has a cut or abrasion
Show answer & explanation
✓ Answer: B. Some substances can pass through intact, undamaged skin into the bloodstream without any visible warning signs at the point of contact
Certain chemicals, such as some organic solvents, pesticides and phenols, can penetrate intact skin and enter the bloodstream with little or no immediate local sign of contact, meaning exposure can go unnoticed until systemic symptoms appear. This is why it is deceptive compared with routes that cause immediate visible reactions.
Q3. Which of these is NOT one of the nine standard GHS hazard pictograms used on UK COSHH labels?
  • A.  Gas cylinder
  • B.  Corrosive
  • C.  Yellow radiation trefoil
  • D.  Environmental hazard (fish and tree)
Show answer & explanation
✓ Answer: C. Yellow radiation trefoil
The radiation trefoil (yellow/black) is a separate ionising radiation warning symbol used under different regulations, not one of the nine GHS pictograms. The GHS set covers physical, health and environmental chemical hazards only.
Exam mode
Full mock exam
25 random questions, real timing, marked against the official pass mark. Different every time.
The first 8 of 25 questions are free, with your score on them. Finishing the paper, your result against the pass mark and every answer explained come with the paid version.
Practice material only. This is revision practice, not official training, assessment or certification, and not a substitute for the required course or supervised experience. Always confirm the current requirements with the official awarding body or test provider before relying on it.
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Topic drills
Ten quick questions on one topic, marked instantly with explanations.
1 free drill left.
What COSHH covers · 36
Hazardous substances & routes of entry · 38
Hazard symbols & safety data sheets · 36
Risk assessment & control hierarchy · 38
PPE, RPE & exposure limits · 37
Storage, spills & emergencies · 38

Who has to sit the COSHH Awareness Prep

Who needs a COSHH Awareness Prep?

Employees exposed to hazardous substances, supervisors and managers responsible for safety.

The real COSHH Awareness Prep: format

How long is the COSHH Awareness Prep?

The real COSHH Awareness Prep lasts 90 minutes. Our mock uses 25 questions in 30 minutes.

What is the COSHH Awareness Prep pass mark?

Real exam pass mark: 80%. Our mock marks you at 18 out of 25, the threshold we mark against.

What it costs, and what a resit costs

How much does the COSHH Awareness Prep cost?

Real exam fee: £10+VAT (online). Resit fee: 0.

How hard is it

How hard is the COSHH Awareness Prep?

Difficulty: Low.

Why people fail it

Why do people fail the COSHH Awareness Prep?

Figures for the real exam from vertexaisearch.cloud.google.com, checked October 2026. Fees and rules change, so confirm with the test provider before you book.
COSHH Awareness Prep: common questions
Frequently asked
How many questions are in the COSHH Awareness Prep?
The exam has 25 questions. Every Revision Robin mock uses the same 25-question format so your practice matches the real thing.
Are these the real exam questions?
No. Our questions are original and written to match the current syllabus, so they give realistic practice without copying the official paper. Every answer comes with a plain-English explanation. Always confirm current rules and content with HSE-aligned.