*TB 48- Jake Brake

Question 1

The jake brake effect is accomplished by prematurely opening the exhaust valves near the top of the ____ stroke releasing the compression pressure to exhaust.

Answer 1

Compression stroke

Question 2

The engine brake reacts quickly. It will activate or deactivate in less than ___ of a second.

Answer 2

1/4

Question 3

Jake brake: (minimum, moderate, or maximum?)
#1 position on switch = \_\_\_\_ engine retarding
#2 position on switch = \_\_\_\_ engine retarding
#3 position on switch = \_\_\_\_ engine retarding

Answer 3

1. Minimum
2. Moderate
3. Max

Question 4

During emergency responses the jake brake should be set for _____ engine retarding.

Answer 4

Max

Question 5

What are the four stated advantages of the jake brake?

Answer 5

1. Increased performance
2. Safety
3. Versatility
4. Cost-effectiveness

Question 6

The Jacobs Engine Brake is a hydraulic engine attachment that, when energized, alters the engine exhaust valve operation which converts the diesel engine into an _____.

Answer 6

Air compressor