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Question 1

51% answer correctly

When is comes to stopping power, front wheel brakes __________ conditions.

	Vary with
	Show greater stopping power when lightly loaded
	Operate poorly when under load
	Show greater stopping power in bad weather

Question 2

55% answer correctly

Dual parking control valves are used in which of the following circumstances?

	While parked
	During emergencies
	During routine operation
	When air pressure is at its maximum

Question 3

43% answer correctly

For vehicles that use air brakes, emergency and parking brakes:

	Must be mechanical brakes
	Are not required
	Must be a combination of mechanical and air brakes
	Can only be air brakes