Texas CDL Air Brakes Test (Section 5) Verified questions and answers latest edition

Texas CDL Air Brakes Test (Section 5)
Verified questions and answers latest
edition

You should know that your brakes are fading when? - Correct Answers You have to push harder
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on the brake pedal to control you down hill speed
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II! If the spring brakes are on when should you push the brake pedal? - Correct Answers Never
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II! Repeatedly pressing and releasing (fanning) the brake pedal may result in ? - Correct Answers A
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II! loss of air pressureII! II! II!




II! The driver must be able to see a low air pressure warning which comes on before pressure in the
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II! service air tank falls below_____PSI? - Correct Answers 60psi
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II! If your truck or bus has dual parking control valves you can use pressure from a separate tank. -
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II! Correct Answers to release the emergency/spring/parking brakes to move a short distance.
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II! The brake pedal in a air brake system. - Correct Answers controls the air pressure applied to put
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II! on the brakes
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II! To check the free play of manual slack adjusters of s-cam brakes you should? - Correct Answers
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II! park on level ground, chock the wheels release the parking brakes and pull on the slack adjusters
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II! Parking or emergency brakes on trucks or buses can be legally held on by _______ pressure. -
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II! Correct Answers Spring II! II! II! II! II!

, II! Emergency stab braking is when you - Correct Answers brake and hard as you can, then release
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II! the brakes when the wheels lock up and put on the brakes again when the wheels start rolling
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The most common type of foundation brake found on heavy vehicles is the - Correct Answers S-
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Cam



II! If your truck has dual air brake system and one of the systems is low on pressure - Correct
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II! Answers either the front or rear brakes will not be fully functional
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II! The most important thing to do when a low pressure warning light comes on is to - Correct
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II! Answers stop and safely park as soon as possible II! II! II! II! II! II! II! II! II! II! II!




II! With air brake equipped vehicles, the parking brakes should be used - Correct Answers any time
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II! the vehicle is parked
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II! The air compressor Governor controls - Correct Answers when air is pumped into the tanks
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II! The stop light switch - Correct Answers turns on the brake light to warn other drivers behind
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II! you



II! For air brake systems in good condition the air compress compressor should start pumping at
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II! about _______ psi - Correct Answers 100psi
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II! The air loss rate for a straight truck or bus with the engine off and the parking brakes off and the
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II! service brakes on should not be more than - Correct Answers 3 psi in one minute
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II! The braking power of the spring brakes - Correct Answers depends on the service brakes being
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II! in adjustment
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