Safety and Your Vehicle

What is the legal minimum tread depth for car tyres in the UK?

• A0.8mm
• B1.6mm across the central 3/4 of the tread width✓
• C2.5mm
• D3mm

Answer: The legal minimum is 1.6mm across the central 3/4 of the tread width. Below this depth, tyres lose grip in wet conditions significantly, increasing braking distance and skidding risk.

How often should you check your tyre pressure?

• AOnce a year
• BOnly after a puncture
• CMonthly and before long journeys✓
• DNever—it doesn't matter

Answer: Monthly checks and pre-journey checks ensure optimal grip and handling. Incorrect pressure affects fuel economy, tyre wear, and safety, so regular monitoring is essential.

What does low tyre pressure cause?

• ABetter fuel economy
• BIncreased grip on the road
• CIncreased fuel consumption and poor handling✓
• DNo effect on driving safety

Answer: Low pressure increases tyre flexing, which generates heat, increases fuel consumption, and reduces handling precision. It also increases the risk of a blowout on long journeys.

When must your vehicle have a valid MOT?

• AFrom 1 year old
• BFrom 2 years old
• CFrom 3 years old✓
• DOnly when it fails

Answer: An MOT is required from the vehicle's 3rd birthday and annually thereafter. It checks roadworthiness including brakes, emissions, and safety equipment.

What should you do before each journey to ensure your vehicle is safe?

• ANothing—if the car starts, it's fine
• BCheck the POWDERS (petrol, oil, water, tyres, engine, lights, mirrors, seatbelts)✓
• CJust check the fuel gauge
• DCheck only the windscreen wipers

Answer: The POWDERS check (petrol, oil, water, tyres, mirrors, seatbelts, lights, engine) covers essential safety items. A working car is not necessarily a safe car—all these systems must function properly.

What is the effect of worn brake pads on your vehicle?

• AIncreased braking power
• BReduced braking distance
• CIncreased stopping distance and risk of brake failure✓
• DNo effect on braking

Answer: Worn pads reduce friction, requiring more time and distance to stop. They also increase the risk of brake fluid boiling and complete brake failure, making them a serious safety hazard.

How should you check your vehicle's lights are working?

• ADrive at night and see if you can see
• BSwitch them on and walk around to check or use a reflective surface✓
• CAsk another driver if they can see them
• DDon't check—they either work or don't

Answer: Walking around your vehicle or using a reflective surface to check lights is the proper method. This ensures all lights work before driving, preventing legal penalties and accidents.

What do brake fluid warning lights indicate?

• ALow fuel
• BLow brake fluid or a brake system fault✓
• CTime for an MOT
• DNothing serious

Answer: A brake warning light means low brake fluid or a system fault. You should stop safely and not continue driving as brakes may fail, which is extremely dangerous.

Why must you wear a seatbelt in a modern car?

• AThe law requires it
• BIt reduces injury in a crash by 40-50%
• CIt reduces fuel consumption
• DBoth A and B✓

Answer: Seatbelts are legally required and they're proven to significantly reduce injury and death in crashes. They prevent you hitting the windscreen or being thrown from the car.

What should you do if you notice your steering is unusually heavy or loose?

• AContinue driving and see if it improves
• BStop and check fluid levels and alignment immediately✓
• CDrive faster to stabilize it
• DIgnore it—it will fix itself

Answer: Heavy or loose steering indicates a serious fault (low fluid, damage, misalignment). You must stop safely and have it checked professionally before driving further.

What is the purpose of the anti-lock braking system (ABS)?

• ATo stop your car faster than normal brakes
• BTo prevent wheel lock and skidding during emergency braking✓
• CTo reduce fuel consumption
• DTo improve acceleration

Answer: ABS prevents wheels from locking during hard braking, maintaining steering control and reducing skidding. This allows you to steer around obstacles during emergency stops, which is impossible with locked wheels.

How should you drive if you notice your engine temperature gauge rising dangerously?

• AContinue to your destination
• BSpeed up to cool the engine
• CStop safely as soon as possible and let the engine cool✓
• DKeep driving but turn off the air conditioning

Answer: A rising temperature indicates overheating and risk of engine damage or failure. You must stop immediately to allow the engine to cool and investigate the problem.