Why do large diesel trucks have air brakes instead of hydraulic brakes?
Correct Ans - 1. lines disconnect with no mess
2. no brake fade
3. leaks do not affect system dramatically
4. large diesel engine can run an air compressor easily
5. system splits into 2 parts for redundancy
6. system is fail safe
What is the psi of the air going into the brake can? Correct Ans - 125
What is another name for the parking brake? Correct Ans - spring brake
What has an electric switch that opens an air valve and activates the front
service brake cans? Correct Ans - front parking brake
What are the 2 types of auxiliary braking systems? Correct Ans -
Transmission retarder and engine brake
At what temperature should a transmission retarder be turned off to avoid
overheating? Correct Ans - 300 degrees F
What is a technique for getting more air into the engine to produce more
power Correct Ans - Forced induction
What is the temperature of compression? Correct Ans - over 600
degrees
What is the sequence of combustion in a diesel engine? Correct Ans - 1.
Intake
2. Compression
3. Power
4. Exhaust
What is the official name of the "Jake Brake" Correct Ans - Compression
Release Brake
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