New Brunswick Driving Practice Tests | Permit Test Practice Test

Truck Test 5

1.Which of these systems combines governor, dryer, safety valve and supply tank together?

AD-IS

BC-FR

SV-ST

ZX-AD

Correct! Wrong!

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Truck Test 5

2.The air pressure gauge for the service tanks will be found where?

By the air hoses

On the dashboard

On the sides of the tanks

At the back of the trailer

Correct! Wrong!

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Truck Test 5

3.Which of these is not part of the supply circuit?

Brake pad

Supply tank

Governor

Air dryer

Correct! Wrong!

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Truck Test 5

4.The low-pressure warning device will be set to alert the driver if the pressure in either of the service tanks falls below…?

50 psi

40 psi

60 psi

70 psi

Correct! Wrong!

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Truck Test 5

5.For provincial carriers, a commercial vehicle is one with a registered weight of…?

14,811 kg plus

11,794 kg plus

12,473 kg plus

9,832 kg plus

Correct! Wrong!

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Truck Test 5

6.What does the trailer air supply valve do?

Fills the trailer tanks

Releases the trailer spring park brakes.

Maintains air pressure in the tractor

All of these things

Correct! Wrong!

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Truck Test 5

7.To which of these does the double foot valve directly apply pressure?

The trailer axle brakes

The drive axle brakes

The steering axle brakes

All of these

Correct! Wrong!

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Truck Test 5

8.In most spring park brake chambers, the coil spring can exert a force of up to…?

500 pounds

1000 pounds

2000 pounds

4000 pounds

Correct! Wrong!

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Truck Test 5

9.What are "glad hands"?

Coupling devices

Steering devices

Brake releases

Chocks

Correct! Wrong!

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Truck Test 5

10.Trailers receive instructions as to when to apply and release the brakes from…?

The rear trailer

The middle trailer

The tractor

Road sensors

Correct! Wrong!

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Truck Test 5

11.A driver can use the trailer control valve (hand valve) in order to do what?

Apply the tractor brakes harder than the trailer service brakes

Apply both brakes equally

Apply the trailer service brakes harder than the tractor brakes

All of the above

Correct! Wrong!

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Truck Test 5

12.In order to play its part with the spring park brakes, air pressure must be around…?

30 psi

50 psi

80 psi

120 psi

Correct! Wrong!

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Truck Test 5

13.If the supply circuit fails, what should the driver do to conserve air pressure?

Keep a steady pressure on the brake

Release the brake

Floor the brake

Pump the brake

Correct! Wrong!

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Truck Test 5

14.If colour coding is used, the supply circuit will be…?

Blue

Orange

White

Red

Correct! Wrong!

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Truck Test 5

15.The service line sends messages to the trailer's service brake circuits using what?

Air pressure

Hydraulic pressure

Mechanical signals

Electronic signals

Correct! Wrong!

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Truck Test 5

16.If you suspect an air line is contaminated, what should you do?

Give it a blast of air while uncoupled

Give it a blast of air while coupled

Pour hot water down it

Stick a rag down it

Correct! Wrong!

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Truck Test 5

17.If one of the circuits of an air brake system fails, the vehicle should not be driven…?

Until repairs have been made

Until the failed circuit has been uncoupled

Over 20 km/h

Until the owner has been notified

Correct! Wrong!

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Truck Test 5

18.You may find a safety actuator that mechanically maintains a service brake application when parked on which type of vehicle?

Motorised crane

Motorcoach

Double trailer combination

Fire service vehicle

Correct! Wrong!

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Truck Test 5

19.Trailers receive air from where?

Their own tanks

The tractor

The rear trailer

Any of these

Correct! Wrong!

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Truck Test 5

20.If there is a failure in the primary service circuit, the first warning will be what?

Service brakes failing

Low air pressure warning

Service brakes engaging

Spring brakes engaging

Correct! Wrong!

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Truck Test 5

21.The spring park brake system draws air from…?

The tank with the highest pressure

The tank with the lowest pressure

Any tank at random

The nearest tank

Correct! Wrong!

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Truck Test 5

22.Why are air brakes not suitable for parking?

Because they don't work when it's cold

Because any leak can lead to failure

Because they are too easy to tamper with

Because they only work when the engine is running

Correct! Wrong!

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Truck Test 5

23.Air pressure is used for what when parking?

Applying the brake

Holding the brake in place

Releasing the brake

All of the above

Correct! Wrong!

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Truck Test 5

24.An anti-compound system is designed to do what?

Apply the service and spring park brakes simultaneously

Stop the service and spring park brakes being applied simultaneously

Release the service and spring park brakes simultaneously

All of these

Correct! Wrong!

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Truck Test 5

25.The spring park brake control valve on the dashboard is usually which colour?

Yellow

Green

Red

Blue

Correct! Wrong!

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Truck Test 5

26.What is the maximum distance the push rod can move out of the brake chamber in a Type 30 chamber?

53 mm

48 mm

64 mm

77 mm

Correct! Wrong!

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Truck Test 5

27.In an emergency caused by a trailer tank failure, emergency braking can be effected using what?

The trailer service hand valve

The trailer air supply valve

The brake pedal

The truck's gears

Correct! Wrong!

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Truck Test 5

28.When an S-cam brake is correctly adjusted, the brake lining will contact the brake drum before the brake chamber has gone through what portion of its maximum stroke?

A quarter

Half

One third

Two thirds

Correct! Wrong!

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Truck Test 5

29.When inspecting and adjusting air brakes, the driver should check that the air pressure is at or greater than what?

150 psi

75 psi

100 psi

125 psi

Correct! Wrong!

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Truck Test 5

30.Foundation brakes are found where?

At the end of the axle

In the middle of the axle

In the middle of the trailer unit

In the tractor unit

Correct! Wrong!

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Truck Test 5

31.When descending slowly down a hill, what should you do to let other drivers know your intentions?

Use hand signals out the window

Pump the brakes to make the brake lights flash

Use your four way flashers

Regularly sound your horn

Correct! Wrong!

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Truck Test 5

32.During a driving shift, which of these should you check?

Brake adjustment

Moisture in tank

Foundation brake overheating

All these elements

Correct! Wrong!

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Truck Test 5

33.A brake lining must be replaced when it has worn down to what level?

8.2 mm

4.3 mm

6.4 mm

5.6 mm

Correct! Wrong!

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Truck Test 5

34.When driving with tire chains, you should…?

Reduce speed

Maintain normal speed

Increase speed

Any of these depending on conditions

Correct! Wrong!

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Truck Test 5

35.Which of these is the most common cause of brake failure?

Accidental damage

Vandalism

Manufacturing faults

Poor checking and maintenance

Correct! Wrong!

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Truck Test 5

36.Your truck will be equipped with automatic slack adjusters if it was manufactured after which year?

1976

1986

1996

2006

Correct! Wrong!

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Truck Test 5

37.In the event of a trailer supply line failure, the spring park brakes will apply immediately and the ABS will…?

Stop working

Become weaker

Become stronger

Cut in

Correct! Wrong!

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Truck Test 5

38.When driving a tractor without a trailer (“bobtailing”), how will the vehicle react to braking harder in slippery conditions compared to driving with a trailer?

Less stable

The same

More stable

Any of these depending on conditions

Correct! Wrong!

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Truck Test 5

39.When inspecting the supply circuit, you should confirm that the governor cut-in pressure is at least how much less than the cut-out pressure?

40 psi

30 psi

20 psi

10 psi

Correct! Wrong!

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Truck Test 5

40.Brakes will function best if the trailer load is distributed…?

Towards the front of the trailer

Towards the rear of the trailer

Equally over each axle

In the middle of the trailer

Correct! Wrong!

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Truck Test 5

41.You must stop at a pre-hill brake inspection sign…?

If an official signals to you

If you did not make a pretrip inspection

If the hill gradient is greater than 20%

In all circumstances

Correct! Wrong!

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Truck Test 5

42.On a steep hill warning sign, which of these would be the steepest grade?

12%

3%

18%

9%

Correct! Wrong!

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Truck Test 5

43.Which of these statements is most accurate concerning brake management systems?

They will always stop you quicker

They allow you to drive faster

They are a last resort

They make up for less skillful drivers

Correct! Wrong!

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Truck Test 5

44.When inspecting and adjusting brakes, a driver should wear…?

A hard hat

Eye protection

Gloves

All of these

Correct! Wrong!

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Truck Test 5

1.Which of these systems combines governor, dryer, safety valve and supply tank together?

Progress 01/44

Truck Test 5

2.The air pressure gauge for the service tanks will be found where?

Progress 02/44

Truck Test 5

3.Which of these is not part of the supply circuit?

Progress 03/44

Truck Test 5

4.The low-pressure warning device will be set to alert the driver if the pressure in either of the service tanks falls below…?

Progress 04/44

Truck Test 5

5.For provincial carriers, a commercial vehicle is one with a registered weight of…?

Progress 05/44

Truck Test 5

6.What does the trailer air supply valve do?

Progress 06/44

Truck Test 5

7.﻿To which of these does the double foot valve directly apply pressure?

Progress 07/44

Truck Test 5

8.In most spring park brake chambers, the coil spring can exert a force of up to…?

Progress 08/44

Truck Test 5

9.What are "glad hands"?

Progress 09/44

Truck Test 5

10.Trailers receive instructions as to when to apply and release the brakes from…?

Progress 010/44

Truck Test 5

11.A driver can use the trailer control valve (hand valve) in order to do what?

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Truck Test 5

12.In order to play its part with the spring park brakes, air pressure must be around…?

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Truck Test 5

13.If the supply circuit fails, what should the driver do to conserve air pressure?

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Truck Test 5

14.If colour coding is used, the supply circuit will be…?

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Truck Test 5

15.The service line sends messages to the trailer's service brake circuits using what?

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Truck Test 5

16.If you suspect an air line is contaminated, what should you do?

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Truck Test 5

17.If one of the circuits of an air brake system fails, the vehicle should not be driven…?

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Truck Test 5

18.You may find a safety actuator that mechanically maintains a service brake application when parked on which type of vehicle?

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Truck Test 5

19.Trailers receive air from where?

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Truck Test 5

20.If there is a failure in the primary service circuit, the first warning will be what?

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Truck Test 5

21.The spring park brake system draws air from…?

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Truck Test 5

22.Why are air brakes not suitable for parking?

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Truck Test 5

23.Air pressure is used for what when parking?

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Truck Test 5

24.An anti-compound system is designed to do what?

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Truck Test 5

25.The spring park brake control valve on the dashboard is usually which colour?

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Truck Test 5

26.What is the maximum distance the push rod can move out of the brake chamber in a Type 30 chamber?

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7.To which of these does the double foot valve directly apply pressure?

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