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Question 1

63% answer correctly

Suppose a trailer separates from the tractor and pulls apart the air lines. The trailer brakes would apply causing which of the following to occur?

	The tractor would lose air pressure through the parted air lines
	There would be no impact to the tractor brakes
	The tractor brakes would apply
	The tractor brakes would lock up

Question 2

49% answer correctly

Rearward amplification array(the "crack-the-whip" effect) is greater in combinations where there are __________ and __________ trailers.

Question 3

90% answer correctly

Which of the following statements about combination vehicles is true?

	All of these are true
	Driving combination vehicles is no different than driving single commercial vehicles
	Single commercial vehicles are heavier, longer and require more driving skill than combination vehicles
	They`re heavier, longer and require more driving skill than single commercial vehicles