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Question
In a dual air brake system:
Answers
A.  Each system has separate air tanks, hoses, and lines.
B.  The systems share air tanks, but each has its own separate hoses and lines.
C.  Each system uses the same lines and hoses.
D.  One system is the main braking system and a second system is ready to be used if the first one fails.
Explanation
A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines.
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This questions is considered quite Hard

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