8/13/25, 2:48
PM
BNSF LETP 2025 EXAM QUESTIONS ANDS
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
LATEST UPDATE GRADED A++ 2025/2026
Terms in this set (47)
Main psi 120-140
Brake pipe psi 90
What follows brake pipe Equalizing reservoir
psi
Equalizing Reservoir psi 90
Single shoe psi 72
Clasp shoe psi 45
Release Charge
Min 6-8
Actuation procedure 2 secs before minimum of 10 secs until Bc is 0
Full Service 26 psi
What is the service zone 8-25
Split reduction procedure Min the 2-3 increments every 30 secs
suppression recover penalty
Emergency Dumps all air
Regulating valve Regulates Equalizing reservoir 90-105
MU-2A Valve Cuts out automatic valves
Managing speed Throttle, dynamics, balanced braking
procedure
1/
7
, 8/13/25, 2:48
PM
how many secs from 10 secs
dyno -throttle
max air to control speed 15 psi
What do you need 60 and below
your flow to be below
on conventional train
Flow on Dp train 90 and below A+B
1. Adjust reg valve
2. make 20 psi
Reducing loco (105-20=85)
overcharge 3.equalize
4. release
5. verify Equalizing res 90 psi
Emergency what Emergency Reservoir, auxiliary, brake cylinder
equalizes
Full service what Auxiliary, brake cylinder, brake pipe
equalizes
Freight car Emerg
emergency/Aux psi 90psi
Aux 90
psi
1. charge system 15 psi of reg valve by gauge or
device at rear
2. wait for signal to apply brakes
3. When signal received to release reduce brake pipe by
20 psi.
4. allow brake pipe to exhaust.
Brake pipe leakage
5. wait 1 min
2/
7
PM
BNSF LETP 2025 EXAM QUESTIONS ANDS
ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
LATEST UPDATE GRADED A++ 2025/2026
Terms in this set (47)
Main psi 120-140
Brake pipe psi 90
What follows brake pipe Equalizing reservoir
psi
Equalizing Reservoir psi 90
Single shoe psi 72
Clasp shoe psi 45
Release Charge
Min 6-8
Actuation procedure 2 secs before minimum of 10 secs until Bc is 0
Full Service 26 psi
What is the service zone 8-25
Split reduction procedure Min the 2-3 increments every 30 secs
suppression recover penalty
Emergency Dumps all air
Regulating valve Regulates Equalizing reservoir 90-105
MU-2A Valve Cuts out automatic valves
Managing speed Throttle, dynamics, balanced braking
procedure
1/
7
, 8/13/25, 2:48
PM
how many secs from 10 secs
dyno -throttle
max air to control speed 15 psi
What do you need 60 and below
your flow to be below
on conventional train
Flow on Dp train 90 and below A+B
1. Adjust reg valve
2. make 20 psi
Reducing loco (105-20=85)
overcharge 3.equalize
4. release
5. verify Equalizing res 90 psi
Emergency what Emergency Reservoir, auxiliary, brake cylinder
equalizes
Full service what Auxiliary, brake cylinder, brake pipe
equalizes
Freight car Emerg
emergency/Aux psi 90psi
Aux 90
psi
1. charge system 15 psi of reg valve by gauge or
device at rear
2. wait for signal to apply brakes
3. When signal received to release reduce brake pipe by
20 psi.
4. allow brake pipe to exhaust.
Brake pipe leakage
5. wait 1 min
2/
7
