LGV Test - 9

LGV Test - 9
You need 17 out of 20 to pass this test
Start test

LGV Test - 9

Question 1 of 20

What should you do after driving through a flood?

Carry out an emergency stop

Drive in low gear with the footbrake lightly applied

Avoid braking until the brakes are dried out

Pump the footbrake when approaching hazards

LGV Test - 9

Question 2 of 20

Your vehicle is fully loaded. Where should you be braking when dealing with bends?

As close to the bend as possible

As you start to turn the wheel

When halfway around the bend

When driving in a straight line

LGV Test - 9

Question 3 of 20

You have to drive onto a muddy building site. Why should you switch on your diff-lock?

To make your steering lighter

To improve your fuel consumption

To increase your engine power

To make the wheels less likely to spin

LGV Test - 9

Question 4 of 20

You're about to drive an unfamiliar vehicle. What should you do if you think there may be moisture in the air-brake reservoir?

Assume the system has automatic drain valves

Find out whether you need to drain the system manually

Nothing, it is the vehicle owner's responsibility

Leave the engine running for a while before driving

LGV Test - 9

Question 5 of 20

What should you avoid when using an independent endurance brake (retarder) on slippery roads?

the front wheels spinning

the drive-wheels locking

brake pad wear

anti-skid road surfaces

LGV Test - 9

Question 6 of 20

You're about to drive a vehicle fitted with hydraulic brakes. What should you check before driving the vehicle?

The hydraulic brake fluid level

The power steering fluid level

The cooling system fluid level

The windscreen washer fluid level

LGV Test - 9

Question 7 of 20

Your vehicle is fitted with air brakes. What does it mean if a brake warning light shows when you've just started the engine?

Low air pressure

Increased air pressure

The parking brake is not working

The air reservoirs are fully charged

LGV Test - 9

Question 8 of 20

You're about to drive a vehicle fitted with air-assisted hydraulic brakes. Why might the brake pedal feel hard when you press it?

The vacuum pump isn't working

The pedal movement needs adjusting

The brakes are locked on fully

The brake fluid reservoir is empty

LGV Test - 9

Question 9 of 20

What should anti-lock brakes let you do when you have to stop in an emergency?

brake more gently

brake much later

maintain steering control

stop over a long distance

LGV Test - 9

Question 10 of 20

What colour is the auxiliary line on a three-line braking system?

Red

Blue

Green

Yellow

LGV Test - 9

Question 11 of 20

How can a lorry driver avoid brake fade?

Ensure that the air tanks are drained before journeys

Check that the air pressure is correct

Make sure that the parking brake is applied before stopping

Select an appropriate gear before downhill gradients

LGV Test - 9

Question 12 of 20

What will 'pumping' the brake pedal in a vehicle fitted with anti-lock brakes cause?

increased effectiveness

reduced effectiveness

reduced brake wear

increased brake wear

LGV Test - 9

Question 13 of 20

What should you do when an air-pressure warning device activates?

Continue to drive the vehicle

Drain the air tanks

Stop and get the fault put right

Pump the brake pedal repeatedly

LGV Test - 9

Question 14 of 20

What is 'brake fade'?

Reduction of air pressure

Smooth progressive braking

Reduction of braking effectiveness

Low hydraulic brake fluid level

LGV Test - 9

Question 15 of 20

Which component will last longer when you use a retarder?

The brake linings

The catalytic converter

The exhaust system

The transmission

LGV Test - 9

Question 16 of 20

Your vehicle is fitted with an air-assisted hydraulic braking system. What would warn you that the vacuum pump isn't working?

The brake pedal feels spongy when pressed

The brake pedal has little resistance

The brake pedal feels hard when pressed

The brake pedal travels a long way

LGV Test - 9

Question 17 of 20

In frosty weather, what precaution could a lorry driver take to prevent moisture from freezing in the air-brake system?

Drain the tanks daily

Cover the tanks with a blanket

Keep the engine at high revs when starting

Pump the brakes

LGV Test - 9

Question 18 of 20

Your vehicle is fitted with air-assisted hydraulic brakes. What would warn you that there isn't enough air in the system?

An increase of pressure in the air gauge

A buzzer or light

The exhaust brake will not work

Brake fade

LGV Test - 9

Question 19 of 20

The emergency line is common to both two-line and three-line brake systems. What colour is it?

Red

Blue

Black

Yellow

LGV Test - 9

Question 20 of 20

You're driving a tractor unit fitted with two air lines. You want to couple to a trailer that has three air-line couplings. How should the air lines be connected?

The trailer auxiliary line should be left unconnected

The trailer service line should be left unconnected

Only the service line should be connected

Only the auxiliary line should be connected

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