GCOR GCOR - General Code of Operating Rules Train Handling and Speed Restrictions

Question 1

Under GCOR, what must a locomotive engineer do before exceeding the maximum authorized speed when conditions improve?

Accepted Answer

Ensure all restrictions have been cleared and conditions permit

Answer

Accelerate immediately to maximum speed

Answer

Notify the dispatcher first

Answer

Wait for written authorization

Question 2

According to GCOR, what is the maximum speed allowed when moving against the current of traffic on a double main track without a specific authority?

Accepted Answer

10 mph

Answer

20 mph

Answer

30 mph

Answer

40 mph

Question 3

Under GCOR, when must an engineer reduce speed to 20 mph or less at grade crossings not equipped with automatic warning devices?

Accepted Answer

Always, regardless of visibility

Answer

Only at night

Answer

Only when flagged by a crew member

Answer

Only in inclement weather

Question 4

When a GCOR train must stop and the engineer cannot stop within half the range of vision, what action is required?

Accepted Answer

Apply emergency brakes and sound the horn

Answer

Sound the horn and proceed at 10 mph

Answer

Stop immediately regardless of consequences

Answer

Reduce speed and call the dispatcher

Question 5

Under GCOR, what speed restriction applies to a train with defective or inoperative dynamic brakes on grades exceeding a specific percentage?

Accepted Answer

The train must not exceed the speed authorized by the chief mechanical officer or equivalent

Answer

The train must not exceed 30 mph on any grade

Answer

The train must stop and not proceed until repaired

Answer

No restriction applies if air brakes are functional

Question 6

According to GCOR, what must occur before a train exceeds 49 mph when operating with a distributed power unit (DPU)?

Accepted Answer

Communication and control of the DPU must be verified as operational

Answer

The DPU must be disconnected

Answer

Written authority must be obtained from the dispatcher

Answer

The train must reduce to 49 mph permanently