CDL Air Brake Practice Test Exam Questions and Answers 100% Solved
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Course
Cdl
Institution
Cdl
CDL Air Brake Practice Test Exam
Questions and Answers 100% Solved
The parking or emergency brake on a heavy vehicle can only be held in
position by something that cannot leak away, like:
a. Fluid pressure
b. Spring pressure
c. Air pressure
d. Any of the above - b. Spring pressure
A straigh...
on for the secondary system or for one system, you should:
a. Bring the vehicle to a safe stop and continue only when the system is
fixed.
b. Reduce your speed, and test the remaining system while under-way.
c. Reduce your speed, and drive to the nearest garage for repairs.
d. Continue at normal speed if only the secondary system fails. - ✔✔a.
Bring the vehicle to a safe stop and continue only when the system is fixed.
If your vehicle has an alcohol evaporator, it is there to:
a. Rid the wet tank of alcohol that condenses and sits at the bottom.
b. Eliminate the need for daily tank draining.
c. Boost tank pressure the same way that superchargers boost engines.
d. Reduce the risk of ice in the air brake valves in cold weather. - ✔✔d.
Reduce the risk of ice in the air brake valves in cold weather.
Air braking takes more time than hydraulic because air:
a. Brakes use different brake drums.
b. Takes more time to flow through the lines than hydraulic fluid.
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