1.Modern air brake systems combine three different systems. The systems are the service, parking, and _____brake systems
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2.The driver must be able to see a warning before air pressure in the service tanks fall below ___psi
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3.The brake pedal in an air brake system:
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4.Air braking takes more time than hydraulic braking because air:
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5.If your vehicle has a alcohol evaporator, it is there to:
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6.If your truck has dual parking control valves, you can use pressure from a separate tank to:
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7.To check the free play of manual slack adjusters on s-cam brakes, you should park on
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8.Of the choices below, the first thing to do when a low air pressure warning light comes on is:
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9.The air compressor governor controls:
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10.The braking power of the spring brakes:
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11.All vehicles equipped with air brakes have:
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12.If you must make a emergency stop, brake so you:
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13.If you don’t have automatic tank drains, how often should you drain the oil and water from the bottom of the compressed air storage tanks?
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14.The application pressure gauge shows how much air pressure you:
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15.Your brakes are fading when
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16.If your vehicle has an alcohol evaporator, everyday during cold weather you should:
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17.Why should you drain water from compressed air tanks?
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18.Your vehicle has a dual air brake system. If the low air pressure warning comes on for the secondary system, you should:
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19.During normal driving, spring brakes are usually held back by:
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20.In air brake vehicles, the parking brakes should be used
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21.Emergency stab braking is when you
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22.A straight truck air brake system should not leak at a rate more than___ psi per minute with the engine off and the brakes released.
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23.The air loss rate for a straight truck with the engine off and the brakes on should not be more than
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23.The air loss rate for a straight truck with the engine off and the brakes on should not be more than
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24.The supply pressure gauge shows how much pressure
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25.The brake system that applies and releases the brakes when the driver uses the brake pedal is the brake system
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26.Before driving a vehicle with a dual air system, allow time for the air compressor to build up to a minimum of ______ psi pressure in both primary and secondary systems.
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27.Total stopping distance for air brakes is longer than that for hydraulic brakes due to distance.
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28.The most common type of foundation brake found on heavy vehicles is the
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29.Which of the following makes total stopping distance longer for air brakes than for hydraulic brakes:
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30.If the air compressor develops a leak, what keeps the air in the tanks?