CPC Road Safety

Question 1

What is the maximum speed limit for a goods vehicle exceeding 7.5 tonnes on a UK motorway?

Accepted Answer

60 mph

Answer

UK law restricts goods vehicles over 7.5 tonnes to a maximum of 60 mph on motorways.

Question 2

Under the Highway Code, when should rear fog lights be used?

Accepted Answer

When visibility falls below 100 metres

Answer

Rear fog lights must only be used when visibility drops below 100 metres, as using them unnecessarily can dazzle following drivers.

Question 3

What is the maximum speed limit for an HGV over 7.5 tonnes on a single carriageway road in the UK?

Accepted Answer

50 mph

Answer

Goods vehicles over 7.5 tonnes are legally limited to 50 mph on single carriageway roads.

Question 4

What significant danger does a strong crosswind pose to a high-sided vehicle?

Accepted Answer

It can push the vehicle sideways causing instability or rollover

Answer

High-sided vehicles present a large surface area to the wind, making them vulnerable to sudden lateral forces that can cause instability or rollover.

Question 5

What is the minimum legal tyre tread depth for commercial vehicle tyres in the UK?

Accepted Answer

1.6 mm

Answer

UK law requires a minimum tread depth of 1.6 mm across the central three-quarters of the tread width for commercial vehicle tyres.

UK Driver CPC Practice Test