SSSTS Practice Test – Free Mock Test Questions 2026

If you're preparing for the SSSTS course, you already know the stakes. The Site Supervisors Safety Training Scheme is a two-day programme recognised across the UK construction industry — and the end-of-course test isn't something you want to wing. Getting familiar with the question style and topic areas beforehand makes a real difference to your confidence and your result.

This page gives you a breakdown of what the SSSTS course covers, what to expect in the assessment, and how to use our free mock test questions to practise before the big day.

What Is the SSSTS Course?

The SSSTS — Site Supervisors Safety Training Scheme — is a CITB-accredited two-day course aimed at site supervisors and those moving into supervisory roles in construction. It's designed to give you the knowledge you need to manage health, safety, welfare, and environmental responsibilities on a live construction site.

You don't need to hold a CSCS card to attend, but completing the SSSTS is a recognised stepping stone toward the CSCS Supervisory card. Many principal contractors and site managers expect supervisors to have SSSTS certification before taking on a team.

The course is delivered by approved training providers across the UK. After two days of instruction, there's a written test. Pass it, and you receive a CITB SSSTS certificate that's valid for five years — after which you'll need to renew through the SSSTS Renewal course.

What Topics Does the SSSTS Cover?

The course covers a wide range of health and safety legislation and practical site management topics. You'll work through material on:

• CDM 2015 regulations — your supervisory duties under the Construction (Design and Management) Regulations
• Site inductions — how to run them, what they must include, and why they matter
• Toolbox talks — planning and delivering short safety briefings to your workforce
• Risk assessment and method statements — understanding RAMS and ensuring your team works to them
• Welfare facilities — legal requirements for toilets, washing facilities, rest areas, and drinking water
• Accident reporting — RIDDOR, near misses, and investigation procedures
• Environmental responsibilities — waste management, noise, dust, and pollution prevention
• Working at height — scaffolding, ladders, and the Work at Height Regulations
• Occupational health — vibration, noise-induced hearing loss, silica dust, and HAVS
• Emergency procedures — fire, first aid, and site evacuation

That's a lot of ground to cover in two days. Most delegates find the CDM 2015 section the most demanding — especially the specific duties placed on principal designers, principal contractors, and contractors. Don't leave that topic until the night before.

What's in the SSSTS Assessment?

At the end of day two, you'll sit a written test. The assessment is closed-book — no notes or course materials allowed. Questions are multiple-choice, and you need to pass to receive your certificate.

The test doesn't have a published pass mark in the traditional sense, but you need to demonstrate sufficient knowledge across the core topic areas. Trainers will tell you how many questions are on the test and what's required to pass during the course itself.

Most delegates pass on the first attempt, particularly those who've paid attention during both days and done some reading beforehand. That's where a good SSSTS course mock test comes in — it lets you identify the topics you're shakiest on before you walk into the room.

How to Use These SSSTS Mock Test Questions

Our practice questions mirror the style and difficulty level of the real SSSTS assessment. Work through them in exam conditions — no notes, no looking things up mid-question. That's the only way to get an honest read on where you stand.

When you finish, review every question you got wrong. Don't just note the correct answer — understand why it's correct. The SSSTS test is knowledge-based, not trick-based. If you understand the underlying legislation or principle, the question becomes straightforward.

A few areas where candidates most often slip up:

• CDM duty holders — confusing the responsibilities of the principal contractor vs. the principal designer is a common error
• RIDDOR categories — knowing exactly which incidents must be reported, to whom, and within what timeframe
• Welfare requirements — the specific legal minimums for facilities on different site sizes catch people out
• Working at height hierarchy — the regulations specify a clear order of controls; you need to know it

Run through the mock test at least twice before your course date. The second attempt gives you a clearer picture of what's actually stuck and what needs more work.

CDM 2015 — The Section Everyone Needs to Study

The Construction (Design and Management) Regulations 2015 underpin much of the SSSTS content. As a site supervisor, you're operating within a legal framework — and the CDM 2015 defines that framework precisely.

Key things to understand before your course:

• The three types of CDM projects: notifiable, non-notifiable, and domestic
• The duty holder roles: client, principal designer, principal contractor, designer, contractor, and worker
• What a construction phase plan is and who is responsible for producing it
• What the health and safety file contains and who it passes to at project completion
• When the HSE must be notified of a project (F10 notification)

The F10 notification threshold — projects lasting more than 30 working days with more than 20 workers simultaneously, or involving more than 500 person-days — is a detail that appears regularly in SSSTS assessments. Get that number fixed in your head.

Toolbox Talks and Site Inductions

These two topics feel straightforward, but the test questions often dig into the specifics. For toolbox talks, you should know:

• They're short, focused safety briefings — typically 5 to 15 minutes
• They must be relevant to the work being done at that time
• Attendance records should be kept
• They're not a substitute for formal training

For site inductions, the legal requirement is that every person entering a construction site for the first time must receive an induction before they start work. The induction must cover: site rules, emergency procedures, welfare facilities, and hazards specific to that site. Visitors — including delivery drivers — must also receive a suitable induction or be escorted.

One thing candidates miss: the person responsible for ensuring workers receive an induction on a CDM-notifiable project is the principal contractor, not the individual site supervisor. You deliver it; they're accountable for it happening.

Occupational Health Topics

Occupational health is increasingly prominent in SSSTS content. The course covers:

• HAVS (Hand-Arm Vibration Syndrome) — caused by prolonged use of vibrating tools. Daily exposure limit values (ELV) and action values (EAV) under the Control of Vibration at Work Regulations 2005
• Noise-induced hearing loss — irreversible damage from excessive noise exposure. Similar ELV/EAV structure under the Control of Noise at Work Regulations 2005
• Silica dust (RCS) — respirable crystalline silica from cutting, grinding, or drilling concrete and stone. A serious long-term health risk causing silicosis
• Manual handling — safe techniques and the hierarchy of controls
• Skin conditions — dermatitis from cement, solvents, and wet work

Don't overlook these. Occupational health awareness is a growing part of the SSSTS, reflecting the industry's recognition that long-term health harms kill more workers than acute accidents.

Environmental Responsibilities on Site

As a supervisor, you're responsible for making sure your team doesn't cause environmental damage. The SSSTS covers:

• Prevention of water pollution — never allow concrete washout, fuel, or cement slurry to enter drains or watercourses
• Dust management — damping down, barriers, and timing work to avoid high-wind conditions
• Noise and vibration — respecting working hours conditions imposed by the local authority
• Waste segregation — the Site Waste Management Plan and skip management
• Protection of trees, wildlife, and ecology features during groundworks

Environmental enforcement has teeth — the Environment Agency can issue stop notices and substantial fines. Treating site environmental compliance as an afterthought is a mistake that can shut down a project.

Working at Height

The Work at Height Regulations 2005 introduce a clear hierarchy of controls that you must know:

1. Avoid working at height altogether if possible
2. Use existing work equipment or other measures to prevent falls
3. Where falls can't be prevented, use measures to minimise the distance and consequences

Scaffolding, edge protection, and safety nets fall under different categories of that hierarchy. Ladder use is tightly regulated — they should only be used for access or for light, short-duration tasks where other equipment isn't practical.

A detail that trips people up: scaffold inspections must be carried out by a competent person every seven days, or following bad weather. The inspection record must be kept on site.

Sample SSSTS Practice Questions

Try these questions from our free SSSTS practice tests. The correct answer and an explanation follow each question.

1. What visual aids are most effective in a toolbox talk?

   • A. Photographs of the actual work area or similar accidents, physical examples of defective PPE or equipment, and simple diagrams
   • B. Dense text-heavy slides projected onto a screen
   • C. Complex engineering drawings
   • D. The full text of the relevant legislation

Answer: A. Photographs of the actual work area or similar accidents, physical examples of defective PPE or equipment, and simple diagrams

Visual aids such as photographs of actual site conditions, examples of the consequences of poor practice (accident photos from similar incidents), physical PPE examples and simple diagrams are far more engaging and memorable than text-heavy presentations.

Answer: A. Workers need to be able to take proper rest breaks, eat food in a clean environment and dry wet clothing — this supports wellbeing, alertness and ultimately productivity and safety

Rest facilities allow workers to take breaks away from the work environment, eat food in hygienic conditions and dry wet clothing. Adequate rest reduces fatigue, improves concentration and alertness, and contributes to safer working throughout the shift.

Answer: B. Provide the induction in a language the worker understands, using translated materials, an interpreter, or visual aids, and verify their understanding before allowing them to work

The supervisor must ensure the worker genuinely understands the safety information. This may require translated induction materials, the use of an interpreter, visual aids and diagrams, demonstration of procedures, and verification of understanding through questions — not just a signature on the register.

Answer: A. Something with the potential to cause harm

A hazard is anything with the potential to cause harm — for example, a hole in the ground, a chemical, electricity, a vehicle or a heavy load. Identifying hazards is the first step in risk assessment.

Take the full SSSTS practice test

Tips for Passing Your SSSTS Test First Time

Plenty of supervisors sail through the SSSTS assessment — and just as many are surprised by how specific the questions can get. Here's what actually helps:

Do the reading beforehand. Your training provider may send pre-course materials. Read them. If you walk in on day one already familiar with CDM 2015 duty holders and basic RIDDOR categories, the instruction sinks in much faster.

Ask questions during the course. The trainer is there to help, and the two days go quickly. If a concept isn't clicking — especially around CDM notification thresholds or welfare requirements — ask. It's far better to clarify in the room than to guess in the test.

Use our SSSTS mock test questions. Going through practice questions in exam conditions tells you exactly where your weak spots are. Focus your revision on those areas rather than re-reading content you already know well.

Pay attention to numbers. The SSSTS test includes specific figures — notification thresholds, scaffold inspection intervals, welfare ratios. These are the details people most often get wrong. Write them down. Repeat them until they stick.

Sleep before the test. This sounds obvious, but plenty of people underestimate day two fatigue. The course is intensive and the test follows immediately. Being alert and rested genuinely affects performance on straightforward recall questions.

The SSSTS is achievable. With two solid days of attention and some preparation using a good SSSTS course mock test, the vast majority of candidates pass. Good luck with yours.