DVSA Speed and Stopping Distances

Question 1

What is the overall stopping distance at 30 mph in dry conditions?

Accepted Answer

23 metres (75 feet)

Answer

12 metres (40 feet)

Answer

36 metres (120 feet)

Answer

53 metres (175 feet)

Question 2

What two components make up the overall stopping distance?

Accepted Answer

Thinking distance and braking distance

Answer

Braking distance and road distance

Answer

Reaction distance and deceleration distance

Answer

Speed distance and friction distance

Question 3

At 70 mph, what is the approximate overall stopping distance?

Accepted Answer

96 metres (315 feet)

Answer

53 metres (175 feet)

Answer

73 metres (240 feet)

Answer

120 metres (395 feet)

Question 4

How does doubling your speed affect your braking distance?

Accepted Answer

It roughly quadruples

Answer

It doubles

Answer

It triples

Answer

It stays the same if you brake harder

Question 5

What happens to your stopping distance in wet conditions?

Accepted Answer

It can at least double

Answer

It stays the same if you have good tyres

Answer

It increases by about 25%

Answer

It only increases on motorways

Question 6

What is the thinking distance at 60 mph?

Accepted Answer

18 metres (60 feet)

Answer

6 metres (20 feet)

Answer

12 metres (40 feet)

Answer

24 metres (80 feet)