REC TFREE REC Train Operations & Handling

Question 1

When a locomotive engineer encounters a broken rail, what is the FIRST action to take?

Accepted Answer

Stop the train and protect the track

Answer

Upon discovering a broken rail, the engineer must stop immediately and protect the track by flagging to prevent other trains from entering the affected section.

Question 2

What does 'dynamic braking' primarily use to slow a train?

Accepted Answer

The locomotive's traction motors acting as generators

Answer

Dynamic braking converts traction motors into generators, creating electrical resistance that produces a retarding force to slow the train.

Question 3

A train is operating in MAS (Maximum Authorized Speed) territory. Which factor does NOT affect the MAS?

Accepted Answer

The engineer's years of experience

Answer

MAS is determined by track class, curvature, equipment ratings, and operating rules — not by the individual engineer's experience level.

Question 4

Under FRA regulations, what is the minimum required brake pipe reduction to initiate a service brake application?

Accepted Answer

6 psi

Answer

FRA regulations and AAR standards require a minimum 6 psi brake pipe reduction to ensure a proper service brake application propagates through the train.

Question 5

What is 'bunching' in train handling terminology?

Accepted Answer

Compressing slack so cars push against each other

Answer

Bunching refers to compressing the slack in a train so that cars are pushing against each other, which can cause rough handling or derailments if done abruptly.

(REC) Railroad Engineer Certification Practice Test

(REC) Railroad Engineer Certification Practice Test

REC TFREE REC Train Operations & Handling