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Question
In a dual air brake system, if one air system is very low on pressure:
Answers
A.  None of the brakes will work at all.
B.  Either the front or rear brakes will not be fully operable.
C.  There is usually no noticeable effect.
Explanation
In a dual air brake system, either the front or rear brakes will not be fully operable if one of the air systems gets too low on pressure. If the air pressure in either tank gets too low while you are driving, you should exit the road and park as soon as possible.
Answer Statistics
13.74 % of our users get this question wrong.
This question's difficulty is Medium

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