Safety margins Flashcards
How should you use anti-lock brakes when you need to stop in an emergency?
Brake promptly and firmly until you’ve stopped
You’re driving on an open road in dry weather. What distance should you keep from the vehicle in front?
a two-second time gap
What’s the main benefit of driving a four-wheel-drive vehicle?
improve grip on the road
Travelling for long distances in neutral (known as coasting) (with the clutch pedal pressed down)
reduction in control
How can you tell when you are driving over black ice? (ice, black ice and
- tyres make little noise
- the steering becomes light.
You are on a wet motorway with surface spray. You should use
use dipped headlights
You have driven though a flood. What is the first thing you should do?
Test your brakes
go slowly while gently applying the brakes, as this will help to dry them.
driving in fog circumstances
use dipped headlights
Your overall stopping distance will be much longer when driving
in the rain
You are driving in heavy rain. Your steering suddenly becomes very light. You should
ease off the accelerator
Anti-lock brakes may not work as effectively if the road surface is
loose or wet.
You are on a long, downhill slope. What should you do to help control the speed of your vehicle?
select a low gear,
as this makes use of the engine brake, and use the brakes carefully.
The main benefit of having four-wheel drive is to improve
road holding
You are trying to move off on snow. You should use
the highest gear you can
as this helps avoid wheel spin.
You are following a vehicle at a safe distance on a wet road. Another driver overtakes you and pulls into the gap you have left. What should you do?
Drop back to regain a safe distance
What is the most common cause of skidding?
driver error,
driving too fast for the road conditions.
You are travelling at 50mph on a good, dry road. What is your typical overall stopping distance?
53m
on a good, dry road
(thinking distance - stopping distance = overall stopping distance)
20mph = 6m - 6m = 12m
30mph = 9m - 14m = 23m
40mph = 12m - 24m = 36m
50mph = 15m - 38m = 53m
60mph = 18m - 55m = 73m
70mph = 21m - 75m = 96m
You are overtaking a motorcyclist in strong winds. What should you do?
Allow extra room
You have just gone through deep water. To dry off the brakes you should
go slowly while gently applying the brakes
In windy conditions you need to take extra care when
passing pedal cyclists
cyclists and motorcyclists. Always allow them extra room.
When approaching a right-hand bend you should keep well to the left. Why is this?
To improve your view of the road
In heavy motorway traffic the vehicle behind you is following too closely. How can you lower the risk of collision?
Increase your distance from the vehicle in front
Overall stopping distance is made up of thinking and braking distance. You are on a good, dry road surface with good brakes and tyres. What is the typical braking distance from 50 mph?
38m
