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15 Cards in this Set
- Front
- Back
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The Service Brake System what? |
Applies and releases the brakes when you use the brake pedal during normal driving. |
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The Parking Brake System whut? |
Applies and releases the parking brakes when you use the parking brake control. |
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The Emergency Brake System whut? |
Uses parts of the service and parking brake system to stop the vehicle in a brake system failure. |
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Air brakes are really three different braking systems. What are those three different braking systems? |
The service brake system, parking brake system, & emergency brake system. |
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What are the CDL air brake requirements? (what functioning parts does your vehicle need to contain to pass the vehicle inspection test) |
Air gauges & low pressure warning device(s) |
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If the vehicle you use for your driving test does not have air gauges and low pressure warning devices, what will happen? |
Your vehicle will not be considered as having an air brake system and you will not have "No Air Brakes" restriction on your CDL. |
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A full service brake application must deliver to all brake chambers not less than ____% of the air Reservoir pressure remaining with the brakes applied. (CVC 26502) |
90% |
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The five main components of "Elementary" air brake system and their purposes are? |
Compressor: to build up and maintain air pressure.
Reservoirs: to store the compressed air.
Foot Valve: to draw compressed air from reservoirs when it is needed for braking.
Brake Chambers: to transfer the force of compressed air to Mechanical linkages.
Brake Shoes and Drums or Brake Rotors and Pads: to create the friction needed to stop the vehicle. |
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The function of the air compressor . . . ? |
Is to Build-up and maintain air pressure required to operate brakes and air-powered accessories. |
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Where does the air compressor pump air into? |
The air storage tanks (Reservoirs) |
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How is the air compressor connected to the engine? |
Through gears or a V-belt |
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The compressor is cooled by popping the hood and letting it cool down until it has returned to to room temperature. (True or False) |
False. The compressor may be air-cooled or cooled by the engine cooling system. |
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Can an air compressor ever have its own oil supply? |
Yes. It may have its own oil supply or be lubricated by engine oil. |
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If the compressor has its own oil supply, what's the special stipulation should you take? |
Check the oil level before driving. |
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What does the governor control? |
When the air compressor will pump air into the storage tanks. |
