Combination air brakesQuestion 7 of 200
Correct57%4 of 7 answered
Incorrect43%3 of 7 answered
What reservoir-and-valve arrangement is common on a highway trailer with single or tandem axles but no spring parking brakes?
Correct.
A typical highway trailer without spring parking brakes uses one trailer reservoir and one relay emergency valve for single or tandem axles. (Guide p. 170)
