BNSF LETP (LOCOMOTIVE ENGINEER TRAINING PROGRAM PRACTICE
EXAM] – QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE | EXAM PREP | STUDY GUIDE | PRACTICE TEST | DOWNLOAD
INSTANT PDF
1. When a train is operating under track warrant control, what is the primary requirement
before a crew can occupy the main track at a hand-operated switch?
A. Verify the switch is locked and proceed at restricted speed.
B. Obtain proper authority, ensure the switch is correctly lined, and verify track occupancy limits.
C. Contact the dispatcher only if the train exceeds the speed limit.
D. Proceed if the signal aspect at the next location is yellow.
Rationale: Proper authority and verifying the alignment of switches are fundamental safety
requirements for entering main track territory to prevent collisions or derailments.
2. You are approaching a signal displaying a "Restricting" aspect. What is the maximum
speed allowed until the train has cleared the restricted block?
A. 10 MPH
B. 15 MPH
C. 20 MPH
D. 25 MPH
Rationale: Restricting signals require movement at restricted speed, which is defined as speed
that allows stopping within half the range of vision, not exceeding 10 MPH.
3. Which of the following best describes the function of the "Independent Brake" in
locomotive operation?
A. It applies brakes to the entire train consist.
B. It applies brakes only to the locomotive units.
C. It is used exclusively for emergency stopping.
D. It regulates the air pressure in the brake pipe.
Rationale: The independent brake is designed specifically to control the locomotive consist
independently of the train’s automatic air brake system.
4. When performing a Class I Air Brake Test, what is the required brake pipe leakage
limit?
A. No more than 3 psi per minute.
B. No more than 5 psi per minute.
C. No more than 7 psi per minute.
D. No more than 10 psi per minute.
, Rationale: Industry standards and federal regulations dictate that brake pipe leakage must not
exceed 5 psi per minute during a proper Class I air brake test to ensure system integrity.
5. If a locomotive engineer encounters an "Approach" signal, what action is required?
A. Stop immediately and call the dispatcher.
B. Proceed at normal track speed.
C. Prepare to stop at the next signal.
D. Reduce to restricted speed immediately.
Rationale: An approach signal serves as a warning that the next signal may be at "stop,"
requiring the engineer to reduce speed to be prepared to stop at the next signal location.
6. What is the definition of "Restricted Speed"?
A. A speed not exceeding 20 MPH.
B. A speed that allows stopping within half the range of vision, not exceeding 10 MPH.
C. A speed determined solely by the conductor.
D. The speed posted on the timetable for that specific territory.
Rationale: Restricted speed is a safety-critical definition requiring the ability to stop short of
any train, engine, obstruction, or switch improperly lined, not exceeding 10 MPH.
7. When must an engineer perform a running air brake test?
A. Every time the crew changes.
B. Only when requested by the dispatcher.
C. After the train has been stationary for more than 4 hours.
D. After the train has been assembled and before departing the initial terminal.
Rationale: A running test (or initial terminal test) is required to ensure the air brake system is
functional and responsive across the entire train length before departing.
8. You are operating a train and the train line pressure drops unexpectedly without a brake
application initiated from the cab. What is the immediate priority?
A. Increase throttle to compensate for drag.
B. Initiate an emergency brake application.
C. Ignore the drop and continue until the next station.
D. Reset the computer system.
Rationale: An unexplained drop in brake pipe pressure suggests a potential train separation or
serious air leak, requiring an immediate emergency stop to prevent a wreck.
9. Which device monitors the alertness of the locomotive engineer?
A. The Event Recorder.
B. The Alerter.
EXAM] – QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE | EXAM PREP | STUDY GUIDE | PRACTICE TEST | DOWNLOAD
INSTANT PDF
1. When a train is operating under track warrant control, what is the primary requirement
before a crew can occupy the main track at a hand-operated switch?
A. Verify the switch is locked and proceed at restricted speed.
B. Obtain proper authority, ensure the switch is correctly lined, and verify track occupancy limits.
C. Contact the dispatcher only if the train exceeds the speed limit.
D. Proceed if the signal aspect at the next location is yellow.
Rationale: Proper authority and verifying the alignment of switches are fundamental safety
requirements for entering main track territory to prevent collisions or derailments.
2. You are approaching a signal displaying a "Restricting" aspect. What is the maximum
speed allowed until the train has cleared the restricted block?
A. 10 MPH
B. 15 MPH
C. 20 MPH
D. 25 MPH
Rationale: Restricting signals require movement at restricted speed, which is defined as speed
that allows stopping within half the range of vision, not exceeding 10 MPH.
3. Which of the following best describes the function of the "Independent Brake" in
locomotive operation?
A. It applies brakes to the entire train consist.
B. It applies brakes only to the locomotive units.
C. It is used exclusively for emergency stopping.
D. It regulates the air pressure in the brake pipe.
Rationale: The independent brake is designed specifically to control the locomotive consist
independently of the train’s automatic air brake system.
4. When performing a Class I Air Brake Test, what is the required brake pipe leakage
limit?
A. No more than 3 psi per minute.
B. No more than 5 psi per minute.
C. No more than 7 psi per minute.
D. No more than 10 psi per minute.
, Rationale: Industry standards and federal regulations dictate that brake pipe leakage must not
exceed 5 psi per minute during a proper Class I air brake test to ensure system integrity.
5. If a locomotive engineer encounters an "Approach" signal, what action is required?
A. Stop immediately and call the dispatcher.
B. Proceed at normal track speed.
C. Prepare to stop at the next signal.
D. Reduce to restricted speed immediately.
Rationale: An approach signal serves as a warning that the next signal may be at "stop,"
requiring the engineer to reduce speed to be prepared to stop at the next signal location.
6. What is the definition of "Restricted Speed"?
A. A speed not exceeding 20 MPH.
B. A speed that allows stopping within half the range of vision, not exceeding 10 MPH.
C. A speed determined solely by the conductor.
D. The speed posted on the timetable for that specific territory.
Rationale: Restricted speed is a safety-critical definition requiring the ability to stop short of
any train, engine, obstruction, or switch improperly lined, not exceeding 10 MPH.
7. When must an engineer perform a running air brake test?
A. Every time the crew changes.
B. Only when requested by the dispatcher.
C. After the train has been stationary for more than 4 hours.
D. After the train has been assembled and before departing the initial terminal.
Rationale: A running test (or initial terminal test) is required to ensure the air brake system is
functional and responsive across the entire train length before departing.
8. You are operating a train and the train line pressure drops unexpectedly without a brake
application initiated from the cab. What is the immediate priority?
A. Increase throttle to compensate for drag.
B. Initiate an emergency brake application.
C. Ignore the drop and continue until the next station.
D. Reset the computer system.
Rationale: An unexplained drop in brake pipe pressure suggests a potential train separation or
serious air leak, requiring an immediate emergency stop to prevent a wreck.
9. Which device monitors the alertness of the locomotive engineer?
A. The Event Recorder.
B. The Alerter.
