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Truck Test 5

1.When you want to apply the trailer brakes without applying the tractor brakes, what should you use?

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Truck Test 5

2.Automatic slack adjusters need to be checked…?

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Truck Test 5

3.In a Type 30 brake chamber, the maximum available stroke is…?

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Truck Test 5

4.A tractor with a bobtail proportioning system will reduce the braking pressure to the drive axle brakes by up to…?

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Truck Test 5

5.The trailer air supply knob on the dashboard will usually be what shape?

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Truck Test 5

6.Your vehicle will have automatic slack adjusters if it was built later than…?

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Truck Test 5

7.Which of these statements is most accurate regarding poorly adjusted brakes?

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Truck Test 5

8.If a vehicle is equipped with a tractor parking brake valve, it will usually be what colour?

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Truck Test 5

9.On which of these vehicles are you most likely to find air over hydraulic brakes?

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Truck Test 5

10.If your vehicle has wedge brakes, you will know the automatic adjusters have failed if when the brakes are applied and released the linings move more than…?

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Truck Test 5

11.An application pressure gauge shows what?

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Truck Test 5

12.Which of these people is ultimately responsible for making sure air brakes are working properly?

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Truck Test 5

13.When stopping on slippery surfaces with an ABS equipped truck, how should you apply the brake pedal?

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Truck Test 5

14.The vast majority of brake failures are caused by what?

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Truck Test 5

15.Operating a vehicle with an excessive brake chamber pushrod stroke can result in a fine of up to…?

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Truck Test 5

16.Alcohol injector systems are designed to prevent…?

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Truck Test 5

17.When checking adjustment, you should wear…?

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Truck Test 5

18.By law, you must check the manual and automatic slack adjusters…?

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Truck Test 5

19.Before manually releasing spring brakes, you should do what?

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Truck Test 5

20.The couplers between tractor and trailer are known as what?

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Truck Test 5

21.When not in use, glad hand couplers should be blocked with dead-end couplers or if these are not available they should be…?

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Truck Test 5

22.What force does the coil spring in spring parking brake chambers exert?

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Truck Test 5

23.How are safety actuator parking brakes different from normal brake systems?

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Truck Test 5

24.The chief difference between a trailer air brake system compared to the tractor is that the trailer will not have…?

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Truck Test 5

25.Releasing a spring parking brake manually is known as what?

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Truck Test 5

26.The parking brake control valve on the dashboard is usually which colour?

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Truck Test 5

27.Which of these is an alternative name for the control line?

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Truck Test 5

28.When trailer brakes "dynamite" they will remain applied for how long?

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Truck Test 5

29.The trailer air supply valve must close if the tractor pressure drops below…?

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Truck Test 5

30.Using foundation brakes to hold the vehicle when parked is…?

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Truck Test 5

31.In dual air brake systems using blended air, the parking brake will take air from…?

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Truck Test 5

32.In a typical Type 30 chamber, an air pressure of 100 psi will deliver a force on the pushrod of what?

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Truck Test 5

33.If your compressor is belt driven, when you press down on the belt midway between the pulleys, you should not be able to push it in more than…?

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Truck Test 5

34.What do the one-way check valves on a dual air brake system control?

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Truck Test 5

35.The supply reservoir is also known as…?

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Truck Test 5

36.The safety valve is sometimes referred to as what?

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Truck Test 5

37.A dual brake system has brakes controlled by…?

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Truck Test 5

38.Which of these is not part of an air brake chamber?

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Truck Test 5

39.In most systems the primary section of a dual air brake system controls what?

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Truck Test 5

40.When an air pressure warning is given, what should you do?

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Truck Test 5

41.A relay valve is installed to reduce what?

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Truck Test 5

42.The mechanical parts of the brake system inside the wheel are known as what?

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Truck Test 5

43.The air pressure gauge for the system will be found where?

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Truck Test 5

44.The low air pressure warning device must come on when the air pressure drops below what level?

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Truck Test 5

45.How often should you check air pressure gauges on a trip?

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  • Passing Score 80%