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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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3 types of brake systems used for cmv |
Service brake, parking brake, emergency brake. |
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What type of air do air brakes use? |
Compressed air |
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What's the name of the device that pumps air into the storage tanks |
Air compressor |
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What is the alcohol evaporator primary purpose? |
Put alcohol into the air system |
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What psi level is the safety relief valve set to open at? |
150 psi |
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Most common type of foundation brake is? |
S-cam drum |
Drum |
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True or false Front braking is good under all weather conditions |
True |
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What air pressure must the low air pressure warning signal come on? |
60psi |
A.) 25psi B.) 60psi C.) 125psi D.) 150psi |
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True or false Spring brakes are held by mechanical force |
True |
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What device indicates how much pressure you have in your air tank |
Supply pressure guage |
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It is mandatory that all vehicles with air brakes have a low air pressure warning signal. |
True |
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You can check slack adjusters by... |
Pulling hard on each of the slack adjusters |
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By using an adjustable wrench the loss rate should be less than 2 psi in one minute for single vehicles and less than 3 psi in one minute for combination vehicles |
True |
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Braking on a long steep downgrade should be used only as a supplement to the braking effect of the engine. |
True |
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The reason that air tanks must be drained is to keep oil and water from building up in the tank |
True |
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