GCOR - General Code of Operating Rules Signals and Their Indications Questions and Answers

Question 1

According to GCOR, what is the indication for a signal displaying a single yellow light, known as an 'Approach' signal?

Accepted Answer

Proceed prepared to stop at the next signal. Trains exceeding 30 MPH must immediately reduce to that speed.

Answer

Proceed at restricted speed.

Answer

Stop, then proceed at restricted speed.

Answer

Proceed, but be prepared to pass the next signal at a speed not exceeding 40 MPH.

Question 2

A train crew encounters a signal displaying a single red light. Under GCOR, what is the primary indication of this 'Stop' signal?

Accepted Answer

Stop before any part of the train passes the signal and do not proceed without authority.

Answer

Stop, then proceed at restricted speed after one minute.

Answer

Immediately reduce to restricted speed, but do not stop.

Answer

Proceed after stopping if the track ahead is seen to be clear.

Question 3

While operating in signaled territory, your train passes a signal displaying a flashing yellow aspect. What is the name and indication of this signal?

Accepted Answer

Approach Restricting: Proceed prepared to pass the next signal at restricted speed.

Answer

Diverging Approach: Proceed on a diverging route prepared to stop at the next signal.

Answer

Advance Approach: Proceed prepared to stop at the second signal.

Answer

Clear: Proceed at maximum authorized speed.

Question 4

A train is authorized to pass a signal displaying a 'Restricting' indication. Which of the following is a key requirement for the train's movement?

Accepted Answer

The movement must be able to stop within half the range of vision, short of any obstruction, and not exceeding 20 MPH.

Answer

The train must not exceed 10 MPH.

Answer

The crew must contact the dispatcher every mile.

Answer

The train may proceed at normal speed if the next signal is visible and clear.

Question 5

Your train is approaching an interlocking and the governing signal displays a red over green aspect. What action should you take?

Accepted Answer

Proceed on the diverging route at the prescribed speed through the turnout.

Answer

Stop immediately; the signal is improperly displayed.

Answer

Proceed at normal speed as the route is clear.

Answer

Proceed prepared to stop at the next signal.

Question 6

According to GCOR Rule 9.4, if a block signal light is absent or a white light is displayed where a colored light should be, how must the signal be regarded?

Accepted Answer

As displaying its most restrictive indication.

Answer

As displaying a Clear indication.

Answer

The train may proceed at restricted speed.

Answer

The signal should be ignored and the train should proceed based on the previous signal's indication.