LGV Test - 25

LGV Test - 25
You need 17 out of 20 to pass this test
Start test

LGV Test - 25

Question 1 of 20

Your vehicle has double rear wheels. Why should you check them before leaving a building site?

To make sure the diff-lock is engaged

To make sure the diff-lock is disengaged

To check that the load-sensing valve is operating correctly

To make sure bricks or debris aren't wedged between the wheels

LGV Test - 25

Question 2 of 20

What do the codes shown on the side walls of bus and lorry tyres refer to?

Tread pattern

Minimum temperature

Maximum load

Running pressure

LGV Test - 25

Question 3 of 20

Where does a high-pressure fuel injector deliver fuel?

Into the carburettors

Into the combustion chamber

Into the manifold

Into the crankcase

LGV Test - 25

Question 4 of 20

What's it advisable to do when you replace a tubeless tyre?

Fit the same valve

Replace the valve

GHve the valve checked

Clean the valve

LGV Test - 25

Question 5 of 20

What does this warning light on the instrument panel mean?

Low fuel pressure

Low oil pressure

Low water pressure

Low air pressure

LGV Test - 25

Question 6 of 20

You're driving a lorry along a motorway. You notice that you're losing tread from one of your tyres. What should you do?

Stop on the hard shoulder and phone for assistance

Stop on the hard shoulder and change the wheel

Continue driving to the next service station

Continue driving and leave by the next exit

LGV Test - 25

Question 7 of 20

You've stopped on a firm, level surface. What's the first thing you must do before you uncouple the trailer?

Lower the trailer legs to the ground

Apply the parking brake

Release the brake air lines

Uncouple the electrical lines

LGV Test - 25

Question 8 of 20

Why should your engine oil be changed at the recommended intervals?

To reduce friction and wear

For better steering control

To prevent oil leaks

To improve clutch wear

LGV Test - 25

Question 9 of 20

How can vehicle breakdowns be reduced?

By driving slowly

By regular servicing

By regular cleaning

By avoiding bad weather

LGV Test - 25

Question 10 of 20

What should you check for wear or damage on a drawbar unit?


Fifth wheel

Kingpin release handle

Eyelet coupling

LGV Test - 25

Question 11 of 20

How frequently should the components of a fifth-wheel coupling be inspected?





LGV Test - 25

Question 12 of 20

What must vehicle operators provide for their drivers?

A system for reporting vehicle defects

A daily update on all motorway hold-ups

A hands-free mobile communications system

A fuel-saving incentive scheme

LGV Test - 25

Question 13 of 20

When fitting a road wheel which tool is essential?

Torque wrench

Ring spanner

Open-end spanner

Adjustable wrench

LGV Test - 25

Question 14 of 20

When should you check the wheel nuts on your vehicle?

Before any journey

Only before long trips

Only every 1000 miles (1600 km)


LGV Test - 25

Question 15 of 20

Why should you use an approved coolant solution in your engine's cooling system?

To protect the coolant from freezing

For easier starting from cold

To prevent the air tank from freezing

For effective cab heating

LGV Test - 25

Question 16 of 20

What's the purpose of the oil filter?

To prevent the engine over-heating

To give better fuel consumption

To prevent the engine over-revving

To collect sediment from the oil

LGV Test - 25

Question 17 of 20

What's the most likely cause if your steering starts to feel heavy?

Faulty power steering

An icy road

A burst rear tyre

A wet road

LGV Test - 25

Question 18 of 20

You've had to change a wheel on your vehicle. When should the wheel nuts be checked again?

At the next service interval

When they are cold

When they are hot

Shortly afterwards

LGV Test - 25

Question 19 of 20

At a Driver and Vehicle Standards Agency (DVSA) roadside check, your vehicle is found to have serious defects and you may no longer use it. Who will DVSA share this information with?

The Driver and Vehicle Licencing Agency

The Traffic Commissioner

The Road Transport Industry Training Body

The Bus, Coach and Commercial Vehicle Council

LGV Test - 25

Question 20 of 20

What does this warning light on the instrument panel mean?

Low oil pressure

Battery discharge

Braking system fault

Door open