union pacific air brakes questions with accurate
answers
After making a coupling what must you do? Ans✓✓✓ Stretch the slack
Before starting an air brake test the rear of the train must be charged to
____ PSI. Ans✓✓✓ 75
Can the release inspection be performed as the train is departing the
terminal? Ans✓✓✓ Yes, but may not exceed 10mph
Can the trains air brakes be used to secure railroad cars left standing
unattended? Ans✓✓✓ NO
During a retest, brakes must remain applied for a minimum of ____
minutes. Ans✓✓✓ 3
During an air brake test, what brake pipe reduction must the engineer
make when the signal is given to apply the air brakes? Ans✓✓✓ 20
pounds
During the last 1 minute wait, what is the maximum allowed leakage?
Ans✓✓✓ 5 PSI
How man people does it take to arm the HEU and EOT? Ans✓✓✓ 2
, How many times can a car's air brake test be retested? Ans✓✓✓ once
How much of the trains air brakes must be operational when departing
the terminal? Ans✓✓✓ 100%
If trains have been separated for more than 4 hours, what air brake test is
required after re-coupling to cars? Ans✓✓✓ Class 1
Is a Class 1 air brake test required when cars are picked up en route and
are NOT a solid block? Ans✓✓✓ Yes
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. Ans✓✓✓ 75
Using the air flow method , what is the indication that there is a
excessive leakage? Ans✓✓✓ If my CFM never gets below 60
What % of a trains brakes must be seen to release? Ans✓✓✓ 100%
what % of operative brake equipment must trains have under all
circumstances? Ans✓✓✓ 85%
what angle cock is closed when testing the emergency application on a
EOT? Ans✓✓✓ Ahead of the last car
answers
After making a coupling what must you do? Ans✓✓✓ Stretch the slack
Before starting an air brake test the rear of the train must be charged to
____ PSI. Ans✓✓✓ 75
Can the release inspection be performed as the train is departing the
terminal? Ans✓✓✓ Yes, but may not exceed 10mph
Can the trains air brakes be used to secure railroad cars left standing
unattended? Ans✓✓✓ NO
During a retest, brakes must remain applied for a minimum of ____
minutes. Ans✓✓✓ 3
During an air brake test, what brake pipe reduction must the engineer
make when the signal is given to apply the air brakes? Ans✓✓✓ 20
pounds
During the last 1 minute wait, what is the maximum allowed leakage?
Ans✓✓✓ 5 PSI
How man people does it take to arm the HEU and EOT? Ans✓✓✓ 2
, How many times can a car's air brake test be retested? Ans✓✓✓ once
How much of the trains air brakes must be operational when departing
the terminal? Ans✓✓✓ 100%
If trains have been separated for more than 4 hours, what air brake test is
required after re-coupling to cars? Ans✓✓✓ Class 1
Is a Class 1 air brake test required when cars are picked up en route and
are NOT a solid block? Ans✓✓✓ Yes
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. Ans✓✓✓ 75
Using the air flow method , what is the indication that there is a
excessive leakage? Ans✓✓✓ If my CFM never gets below 60
What % of a trains brakes must be seen to release? Ans✓✓✓ 100%
what % of operative brake equipment must trains have under all
circumstances? Ans✓✓✓ 85%
what angle cock is closed when testing the emergency application on a
EOT? Ans✓✓✓ Ahead of the last car
