ASE H4 Transit Bus Brakes Practice Test

The ASE H4 brakes test will test your knowledge of the air supply and service systems, mechanical brakes, parking brakes and more. This is a practice test based on the official study guide.

Results

You passed!

Did not pass, must study more. 🙂

#1 A transit bus, with a ruptured air supply tank, is being towed from the front. The technician should:

cage the rear air brake chambers is correct

#2 Brake shoe-to-drum clearance, on a transit bus with S-cam brakes, is maintained by adjusting the:

slack adjuster is correct

#3 The parking brakes fail to apply on a transit bus with air brakes. Technician A says that low air pressure in the spring brake chamber could be the cause. Technician B says that a ruptured spring brake diaphragm could be the cause. Who is right?

Neither A nor B is correct

#4 The air line from the air drier to the air supply (wet) tank is being replaced. Technician A says that there should be no low spots in the line after installation. Technician B says that a smaller diameter line may be used for the replacement. Who is right?

A only is correct

#5 A transit bus’ parking brake valve button pops out immediately after being depressed. Technician A says that this could be caused by low system air pressure. Technician B says that this could be caused by air in the emergency chamber. Who is right?

A only is correct

#6 A transit bus has an uneven braking problem. Which of these could be the cause?

A bad brake drum is correct

#7 An air compressor is not unloading, causing the air tank safety valve to pop off. This could be caused by any of these EXCEPT:

an obstructed intake is correct

finish

 

Reference:

This is not an official test it is a practice test based on the official study guide. Use it for entertainment purposes only.

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