Rail Operations & Train Handling Flashcards

What is the purpose of a 'set and release' or 'actuating' brake test on a freight train?

Answer: To verify that brakes apply and release properly on all cars before departure

A set-and-release brake test (Class I or running test) verifies that the entire train's brakes respond correctly to both application and release commands.

Under what condition is a locomotive engineer permitted to exceed the posted timetable speed?

Answer: Under no condition — timetable speed is the maximum authorized speed

Timetable speed is the maximum authorized speed and may never be exceeded regardless of schedule delays or verbal instructions.

What is the function of the automatic train stop (ATS) or cab signal system in locomotive operations?

Answer: To enforce compliance with signal indications by automatically applying brakes if the engineer fails to respond

ATS and cab signal systems automatically apply brakes if an engineer fails to acknowledge or comply with a restrictive signal indication, preventing signal violations.

A freight train loses air on the brake pipe while descending a steep grade. What is the automatic result of this condition?

Answer: The brakes automatically apply on all cars equipped with automatic air brakes

Automatic air brake systems are 'fail-safe' — a loss of brake pipe air pressure causes all triple valves to go to the service or emergency position, applying the brakes.

When is a locomotive engineer required to sound two long whistle blasts, one short, and one long blast?

Answer: When approaching a railroad crossing at grade

The whistle signal pattern long-long-short-long (—— —— · ——) is the standard grade crossing warning signal required by FRA regulations.

What is the 'air flow method' for detecting brake pipe leakage on a locomotive?

Answer: Observing the flow meter on the locomotive to determine if air usage exceeds normal levels

The air flow indicator (flow meter) on the locomotive shows the rate of air being consumed; abnormally high flow indicates a leak in the brake pipe system.

According to FRA regulations, which of the following is the engineer's responsibility regarding track conditions?

Answer: To immediately reduce speed or stop when a track condition appears unsafe and report the defect

Engineers must reduce speed or stop when they observe unsafe track conditions and report the defect — they share responsibility for track safety with maintenance personnel.