Truck Test 10

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

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

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

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

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

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6.What does the trailer air supply valve do?

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

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

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9.What are "glad hands"?

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

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

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

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

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

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

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

Please select 2 correct answers

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

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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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19.A spring park brake will be "caged" for what purpose?

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20.Trailers receive air from where?

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

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

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23.Why are air brakes not suitable for parking?

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24.Air pressure is used for what when parking?

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

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

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

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

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29.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?

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

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31.Foundation brakes are found where?

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

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

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

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

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

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

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

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39.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?

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40.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?

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

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

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

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

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

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