Union Pacific -- Air Brakes ACTUAL EAXM 2026 -2027 | Most
Recent Exam 2026 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded A+
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What is the air pressure regulating valve, also known as, the brake pipe
pressure, for yard and freight service set to?
90 psi
What three methods are used to determine the air pressure at the rear of a
train?
Accurate gauge, E.O.T. (End-of-Train), and a distributed power locomotive.
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(s) would fulfill this
requirement?
When either an EOT or power consist attached to the rear of the train
indicates the following: A decrease in pressure of 5 PSI (Brakes Applied)
and an increase in
pressure of 5 PSI (Brakes Released). *Application and Release Test*
What is the initial, (preferred), method to test brake pipe leakage?
Air Flow Method, (AFM)
,What equipment must the locomotive be equipped with, if using the Air
Flow Method?
AFM Indicator with a direct reading of air flow in increments no greater than
10 CFM, (Cubic Feet per Minute)
The brake system for freight trains must be charged to what minimum
requirement at the REAR before an air test can begin?
75 PSI
Using the Air Flow Method, (AFM), how many CFM cannot be exceeded for
test to be complete?
60 CFM, if air flow exceeds this measurement then the train must be
inspected for leakage.
What action is required if air leakage exceeds the maximum amount?
Train must be inspected for leakage and once leakage is corrected, the train
must be re-tested.
What test is required when a train does not meet the AFM requirements of 60
CFM?
Brake Pipe Leakage Method
What is the minimum PSI the brake system must be charged to as
indicated by a gauge or device at the rear of your train?
75 PSI
, During the last 1 minute wait for the "Brake Pipe Leakage Test", what is the
maximum allowed leakage?
Not to exceed 5 PSI
What is the proper piston travel for truck-mounted brake cylinders?
Must be within the limits of the travel indicator when brakes are applied and
provide brake shoe clearance when brakes are released.
What is the proper piston travel for body-mounted brake cylinders?
Class I: 6" to 9" when brakes applied
Class IA and Transfer Train Test: 6" to 10.5"
How do you identify the "B" end of a railcar?
On cars with one handbrake, the "B" end of the car is the end with the
handbrake.
Recent Exam 2026 Actual Complete Real Exam Questions And
Correct Answers (Verified Answers) Already Graded A+
|Guaranteed Success!! Newest Exam | Just Released!!
What is the air pressure regulating valve, also known as, the brake pipe
pressure, for yard and freight service set to?
90 psi
What three methods are used to determine the air pressure at the rear of a
train?
Accurate gauge, E.O.T. (End-of-Train), and a distributed power locomotive.
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(s) would fulfill this
requirement?
When either an EOT or power consist attached to the rear of the train
indicates the following: A decrease in pressure of 5 PSI (Brakes Applied)
and an increase in
pressure of 5 PSI (Brakes Released). *Application and Release Test*
What is the initial, (preferred), method to test brake pipe leakage?
Air Flow Method, (AFM)
,What equipment must the locomotive be equipped with, if using the Air
Flow Method?
AFM Indicator with a direct reading of air flow in increments no greater than
10 CFM, (Cubic Feet per Minute)
The brake system for freight trains must be charged to what minimum
requirement at the REAR before an air test can begin?
75 PSI
Using the Air Flow Method, (AFM), how many CFM cannot be exceeded for
test to be complete?
60 CFM, if air flow exceeds this measurement then the train must be
inspected for leakage.
What action is required if air leakage exceeds the maximum amount?
Train must be inspected for leakage and once leakage is corrected, the train
must be re-tested.
What test is required when a train does not meet the AFM requirements of 60
CFM?
Brake Pipe Leakage Method
What is the minimum PSI the brake system must be charged to as
indicated by a gauge or device at the rear of your train?
75 PSI
, During the last 1 minute wait for the "Brake Pipe Leakage Test", what is the
maximum allowed leakage?
Not to exceed 5 PSI
What is the proper piston travel for truck-mounted brake cylinders?
Must be within the limits of the travel indicator when brakes are applied and
provide brake shoe clearance when brakes are released.
What is the proper piston travel for body-mounted brake cylinders?
Class I: 6" to 9" when brakes applied
Class IA and Transfer Train Test: 6" to 10.5"
How do you identify the "B" end of a railcar?
On cars with one handbrake, the "B" end of the car is the end with the
handbrake.
