Air Brakes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why must air tanks be drained? | show 🗑
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| What is a supply pressure gauge used for? | show 🗑
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| show | True
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| What are spring brakes? | show 🗑
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| show | True
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| show | Trucks Buses and Tractors will have yellow ABS malfunction lamps on the instrument panel. Trailers will have yellow ABS malfunction lamps on the left side, either on the front or rear corner.
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| What is a dual air brake system? | show 🗑
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| What are slack adjusters? | show 🗑
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| show | Park on level ground, choke wheels to prevent vehicle from moving, turn off parking brakes, pull hard on each slack adjuster. It shouldn't move more than one inch.
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| How can you test the low pressure warning signal? | show 🗑
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| show | Park on level ground and choke wheels and release parking brake when you have enough pressure. Step on and off the brake, with the engine off, the parking brake knob should pop out when air pressure falls between 20-40 psi.
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| show | Less than two psi in one minute for single vehicles and less than three psi in one minute for combination vehicles.
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| Why should you be in the proper gear before starting down a hill? | show 🗑
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| What factors can cause brakes to fade or fail? | show 🗑
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| show | True.
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| show | False. Any time you park use the parking break except when they are very hot (steep downgrade) or in extreme cold temperatures when the brakes are very wet they can freeze.
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| How often should you drain air tanks? | show 🗑
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| How do you brake when you drive a tractor-trailer combination with ABS? | show 🗑
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| show | True.
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| What is the total stopping distance for vehicles with air brake systems? | show 🗑
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| What is the purpose of an alcohol evaporator? | show 🗑
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| If oil and water collect in the air tanks what can happen to the brakes? | show 🗑
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Created by:
Eyared