UNION PACIFIC AIR BRAKES EXAM
what % of operative brake equipment must trains have under all circumstances? -
Correct Answers -85%
what is the air pressure regulating valve or "brake pipe" pressure set to for yard and
freight service? - Correct Answers -90%
when an air brake test requires an inspection to determine that the brakes apply and
release on the rear car of the train, what action would fulfill this requirement? - Correct
Answers -5 pound increase and a 5 pound decrease
How much of the trains air brakes must be operational when departing the terminal? -
Correct Answers -100%
Can the release inspection be performed as the train is departing the terminal? - Correct
Answers -Yes, but may not exceed 10mph
What % of a trains brakes must be seen to release? - Correct Answers -100%
Is a Class 1 air brake test required when cars are picked up en route and are NOT a
solid block? - Correct Answers -Yes
What portion of a train would have to be class 1 tested if picking up a set of cars on a
siding that are not a solid block? - Correct Answers -just the cars you are adding
what is the initial method to test brake pipe leakage? - Correct Answers -air flow method
the brake system for freight trains must be charged to a minimum requirement of at
least ______PSI at the REAR before an air test can begin. - Correct Answers -75
when air flow does not exceed _____CFM, test is complete. - Correct Answers -60
Using the air flow method , what is the indication that there is a excessive leakage? -
Correct Answers -If my CFM never gets below 60
What test is required when a train does not met the AFM requirements? - Correct
Answers -Brake pipe leakage test
what % of operative brake equipment must trains have under all circumstances? -
Correct Answers -85%
what is the air pressure regulating valve or "brake pipe" pressure set to for yard and
freight service? - Correct Answers -90%
when an air brake test requires an inspection to determine that the brakes apply and
release on the rear car of the train, what action would fulfill this requirement? - Correct
Answers -5 pound increase and a 5 pound decrease
How much of the trains air brakes must be operational when departing the terminal? -
Correct Answers -100%
Can the release inspection be performed as the train is departing the terminal? - Correct
Answers -Yes, but may not exceed 10mph
What % of a trains brakes must be seen to release? - Correct Answers -100%
Is a Class 1 air brake test required when cars are picked up en route and are NOT a
solid block? - Correct Answers -Yes
What portion of a train would have to be class 1 tested if picking up a set of cars on a
siding that are not a solid block? - Correct Answers -just the cars you are adding
what is the initial method to test brake pipe leakage? - Correct Answers -air flow method
the brake system for freight trains must be charged to a minimum requirement of at
least ______PSI at the REAR before an air test can begin. - Correct Answers -75
when air flow does not exceed _____CFM, test is complete. - Correct Answers -60
Using the air flow method , what is the indication that there is a excessive leakage? -
Correct Answers -If my CFM never gets below 60
What test is required when a train does not met the AFM requirements? - Correct
Answers -Brake pipe leakage test
