1.When you want to apply the trailer brakes without applying the tractor brakes, what should you use?
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2.Automatic slack adjusters need to be checked…?
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3.In a Type 30 brake chamber, the maximum available stroke is…?
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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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5.The trailer air supply knob on the dashboard will usually be what shape?
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6.Your vehicle will have automatic slack adjusters if it was built later than…?
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7.Which of these statements is most accurate regarding poorly adjusted brakes?
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8.If a vehicle is equipped with a tractor parking brake valve, it will usually be what colour?
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9.On which of these vehicles are you most likely to find air over hydraulic brakes?
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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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11.An application pressure gauge shows what?
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12.Which of these people is ultimately responsible for making sure air brakes are working properly?
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13.When stopping on slippery surfaces with an ABS equipped truck, how should you apply the brake pedal?
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14.The vast majority of brake failures are caused by what?
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15.Operating a vehicle with an excessive brake chamber pushrod stroke can result in a fine of up to…?
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16.Alcohol injector systems are designed to prevent…?
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17.When checking adjustment, you should wear…?
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18.By law, you must check the manual and automatic slack adjusters…?
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19.Before manually releasing spring brakes, you should do what?
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20.The couplers between tractor and trailer are known as what?
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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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22.What force does the coil spring in spring parking brake chambers exert?
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23.How are safety actuator parking brakes different from normal brake systems?
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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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25.Releasing a spring parking brake manually is known as what?
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26.The parking brake control valve on the dashboard is usually which colour?
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27.Which of these is an alternative name for the control line?
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28.When trailer brakes "dynamite" they will remain applied for how long?
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29.The trailer air supply valve must close if the tractor pressure drops below…?
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30.Using foundation brakes to hold the vehicle when parked is…?
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31.In dual air brake systems using blended air, the parking brake will take air from…?
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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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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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34.What do the one-way check valves on a dual air brake system control?
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35.The supply reservoir is also known as…?
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36.The safety valve is sometimes referred to as what?
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37.A dual brake system has brakes controlled by…?
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38.Which of these is not part of an air brake chamber?
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39.In most systems the primary section of a dual air brake system controls what?
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40.When an air pressure warning is given, what should you do?
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41.A relay valve is installed to reduce what?
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42.The mechanical parts of the brake system inside the wheel are known as what?
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43.The air pressure gauge for the system will be found where?
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44.The low air pressure warning device must come on when the air pressure drops below what level?
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45.How often should you check air pressure gauges on a trip?
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