Texas Railroad Engineer Licensing Exam –
Practice Test Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant download Pdf
1. Which federal agency primarily regulates railroad safety standards in the United
States?
A. Environmental Protection Agency (EPA)
B. Federal Railroad Administration (FRA)
C. Occupational Safety and Health Administration (OSHA)
D. Department of Transportation (DOT)
The FRA oversees all railroad safety, including equipment, operations, and track
standards.
2. The Texas Railroad Commission primarily regulates which of the following
industries?
A. Passenger rail operations
B. Oil, gas, and pipeline transportation
C. Freight rail engineering
D. Maritime shipping
Despite its name, the Texas Railroad Commission’s jurisdiction now focuses mainly
on energy sectors, not railways.
3. What is the standard railroad track gauge used in the U.S.?
A. 5 feet
B. 3 feet 6 inches
C. 4 feet 8½ inches
,D. 4 feet 10 inches
The standard gauge ensures compatibility across rail networks nationwide.
4. Which of the following documents must an engineer have before operating a
locomotive in Texas?
A. Driver’s license
B. Federal certification under 49 CFR Part 240
C. FRA Form 6180.55 only
D. Railroad company identification card
49 CFR Part 240 mandates certification for locomotive engineers by both employer
and FRA.
5. What is the primary purpose of a train’s dynamic braking system?
A. Apply air brakes
B. Use traction motors to slow the train
C. Release brake pressure
D. Increase traction on wet rails
Dynamic braking converts kinetic energy into electrical resistance, helping control
descent speed.
6. Which signaling system ensures automatic train control to prevent collisions?
A. Manual block system
B. Centralized traffic control
C. Positive Train Control (PTC)
D. Automatic block signal
PTC is a federally mandated system designed to prevent train-to-train collisions
and overspeed derailments.
, 7. Under FRA rules, engineers must undergo recertification every:
A. 2 years
B. 5 years
C. 3 years
D. 1 year
Locomotive engineers are required to be requalified at least once every three
years.
8. When approaching a grade crossing, the locomotive horn must be sounded at
least:
A. 200 feet before the crossing
B. 15 to 20 seconds before the train enters the crossing
C. 30 seconds before entering
D. 50 feet from the crossing
Federal regulations specify sounding within 15–20 seconds for public safety.
9. Which brake component stores compressed air for train braking?
A. Control valve
B. Main reservoir
C. Brake cylinder
D. Retainer valve
The main reservoir supplies compressed air to the system for repeated brake
applications.
10. In Texas, who enforces rail safety standards related to track maintenance and
inspection?
A. Federal Highway Administration
B. Federal Railroad Administration
C. Texas Department of Public Safety
Practice Test Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant download Pdf
1. Which federal agency primarily regulates railroad safety standards in the United
States?
A. Environmental Protection Agency (EPA)
B. Federal Railroad Administration (FRA)
C. Occupational Safety and Health Administration (OSHA)
D. Department of Transportation (DOT)
The FRA oversees all railroad safety, including equipment, operations, and track
standards.
2. The Texas Railroad Commission primarily regulates which of the following
industries?
A. Passenger rail operations
B. Oil, gas, and pipeline transportation
C. Freight rail engineering
D. Maritime shipping
Despite its name, the Texas Railroad Commission’s jurisdiction now focuses mainly
on energy sectors, not railways.
3. What is the standard railroad track gauge used in the U.S.?
A. 5 feet
B. 3 feet 6 inches
C. 4 feet 8½ inches
,D. 4 feet 10 inches
The standard gauge ensures compatibility across rail networks nationwide.
4. Which of the following documents must an engineer have before operating a
locomotive in Texas?
A. Driver’s license
B. Federal certification under 49 CFR Part 240
C. FRA Form 6180.55 only
D. Railroad company identification card
49 CFR Part 240 mandates certification for locomotive engineers by both employer
and FRA.
5. What is the primary purpose of a train’s dynamic braking system?
A. Apply air brakes
B. Use traction motors to slow the train
C. Release brake pressure
D. Increase traction on wet rails
Dynamic braking converts kinetic energy into electrical resistance, helping control
descent speed.
6. Which signaling system ensures automatic train control to prevent collisions?
A. Manual block system
B. Centralized traffic control
C. Positive Train Control (PTC)
D. Automatic block signal
PTC is a federally mandated system designed to prevent train-to-train collisions
and overspeed derailments.
, 7. Under FRA rules, engineers must undergo recertification every:
A. 2 years
B. 5 years
C. 3 years
D. 1 year
Locomotive engineers are required to be requalified at least once every three
years.
8. When approaching a grade crossing, the locomotive horn must be sounded at
least:
A. 200 feet before the crossing
B. 15 to 20 seconds before the train enters the crossing
C. 30 seconds before entering
D. 50 feet from the crossing
Federal regulations specify sounding within 15–20 seconds for public safety.
9. Which brake component stores compressed air for train braking?
A. Control valve
B. Main reservoir
C. Brake cylinder
D. Retainer valve
The main reservoir supplies compressed air to the system for repeated brake
applications.
10. In Texas, who enforces rail safety standards related to track maintenance and
inspection?
A. Federal Highway Administration
B. Federal Railroad Administration
C. Texas Department of Public Safety
