Truck Test 7

1.Why have air brake systems become more popular than hydraulic brakes for heavy vehicles?

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2.When pressing down on the clutch to change gears with a standard transmission vehicle, you should:

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3.What is the difference in technique when downshifting versus upshifting?

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4.When should the driver of a heavy vehicle use the double-clutch technique?

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5.In what instance might you need to shift back into the same gear or a lower gear when attempting to upshift?

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6.What is the unit of measurement indicated by a tachometer?

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7.At what temperature is black ice most likely to form on the roadway?

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8.What is the usual engine speed range within which most motor vehicles operate efficiently?

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9.What is the major advantage of progressive shifting over other methods?

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10.If you are planning to downshift from 6th gear to 5th gear, but your vehicle has slowed down dramatically while in neutral, which gear should you shift to?

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11.What is the cause of 'highway hypnosis'?

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12.What is the recommended maximum cruising speed for a heavy vehicle on the highway?

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13.If you are finding it difficult to concentrate on the road, maintain a consistent speed and keep your eyes open, you should:

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14.If one of the hydraulic brake circuits is defective or if the engine shuts down and the vehicle stalls, what action will be needed to successfully stop the vehicle?

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15.Which of the following is incorrect with regards to the pre-trip inspection that should be conducted during winter?

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16.What is the correct way to ensure you are following the vehicle in front at a safe distance:

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17.If an air compressor begins operating when the air pressure in the service reservoirs drops below 714 kPa, then the air compressor will stop filling them when the pressure reaches:

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18.Which of the following statements is true about the primary and secondary circuits of an air brake system?

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19.What happens when the parking brake knob is pushed in?

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20.What would two needles in an air pressure gauge indicate?

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21.Retarders will:

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22.What is an essential guideline to follow when negotiating a curve?

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23.Which of the following situations could prevent you from clearing an overpass even if your vehicle is shorter than the height indicated?

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24.Which of the following is not an appropriate use for the trailer hand brake?

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25.If the low-pressure light comes on, indicating that your service brake system is failing, what should you do?

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26.When entering a right curve in a heavy vehicle, the driver should:

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27.What is best practice for using your supplemental brakes when going down a hill with a loaded vehicle?

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28.Which is not a major factor contributing to 'brake fading'?

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29.What is the purpose of an air purifier in an air brake system?

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30.If you are making a turn in a heavy vehicle, when is the correct time to accelerate?

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31.What does the air pressure gauge tell you?

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32.If you are carrying a heavy load, why is it important to increase your stopping distance rather than increasing your braking power when bringing the vehicle to a stop?

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33.Which of the following is not one of the factors determining the braking power?

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34.As a responsible driver, you should look ahead over the distance you will be covering in the next:

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35.What mechanism causes the vehicle to slow down in a drum brake system when the driver presses the brake pedal?

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36.When the brake pedal has been applied, what happens immediately after compressed air pushes on the diaphragm of the brake chamber?

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37.If you doing a brake adjustment inspection, what is the sign that your brake(s) needs to be adjusted?

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38.Why is it important for drivers to know about brake lag?

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39.What does the acronym GVWR stand for?

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40.The emergency brake will take over and bring the vehicle to a stop when the pressure in the service brakes drops below:

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41.How is compressed air supplied to a semitrailer's reservoirs?

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42.When is jackknifing most likely to occur?

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43.Air brake systems might operate at different pressure levels, but the difference in pressure between when the air compressor starts and stops operating is always the same. It is:

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44.Which of the sequences below correctly describes how air from the outside of the vehicle travels through the brake system?

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45.How often should you be checking your rearview mirrors?

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