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Related Flashcards
Cards In This Set
| Front | Back |
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Why must air tanks be drained?
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To drain moisture and oil out of the tank
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What is a supply pressure gauge used for?
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To tell you how much air is in the air tank.
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All vehicles with air brakes must have a low air pressure warning signal.
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True
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What are spring brakes?
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If the airbrakes leak down, springs press the brakes on to stop the vehicle.
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Front wheel brakes are good under all conditions.
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True
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When you put your brakes on the air brake system works with an electric switch, by air pressure to turn on the brake lights.
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True
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What do air brakes use to make the brakes work?
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Compressed air
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Air brakes are really three different braking systems: service brake, parking brake and emergency brake.
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True
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The service brake applies and releases:
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The brake when you use the brake pedal during normal driving.
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The parking brake applies and releases:
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The parking brakes when you use the parking brake control.
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The emergency brake system:
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Uses parts of the service and parking brake system to stop the vehicle in the event of a brake system failure.
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The governor controls when the air compressor will pump into the air storage tanks.
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True
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The air storage tanks are used to hold compressed air.
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True
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When you put on the brakes by pushing down the brake pedal:
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Air pressure is applied to the brake pads.
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The S-cam forces the brake shoes away from one another and presses them
against the inside of the brake drum. It is called the S-cam because:
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It is shaped like the letter S.
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