UNION PACIFIC GCOR EXAM QUESTIONS
WITH ALL CORRECT ANSWERS
Dim the headlights at stations and yards where switching is to be done. *True or
False?* - Answer-True
Turn the headlight OFF when your train is left unattended on the main track in Block
System limits. *True or False?* - Answer-True
In the event of headlight failure, stop the train before each public crossing, so a crew
member on the ground can provide warning until the crossing is occupied, unless: -
Answer-Crossing gates are fully lowered and no traffic is approaching or stopped at the
crossing.
When an engine is operating without cars or is at the rear of the train, the trailing
headlight illuminated on bright may be used as a marker. *True or False?* - Answer-
True
Blue signals must be removed by whom? - Answer-The craft or group that placed them.
What does a blue signal signify? - Answer-That workmen are on, under, or between
rolling equipment.
When a blue signal is attached to an engine, unless directed by the craft who placed the
signal, ____________ is prohibited. - Answer-Changing controls, brake settings, turning
on or off switches or circuit breakers or starting or shutting down the engine.
If a signal is improperly displayed, or a signal, flag, or sign is absent from the place it
usually shown: - Answer-Regard the signal as displaying the most restrictive indication it
can give.
When must you display highly visible markers? - Answer-1 hour before sunset to 1 hour
after sunrise
If your highly visible marker becomes inoperative enroute, what must be done? -
Answer-Contact the dispatcher and continue to the next forward location where it can
be repaired or replaced.
What type of Track Bulletin is identified with asterisks? - Answer-Form "B"
WITH ALL CORRECT ANSWERS
Dim the headlights at stations and yards where switching is to be done. *True or
False?* - Answer-True
Turn the headlight OFF when your train is left unattended on the main track in Block
System limits. *True or False?* - Answer-True
In the event of headlight failure, stop the train before each public crossing, so a crew
member on the ground can provide warning until the crossing is occupied, unless: -
Answer-Crossing gates are fully lowered and no traffic is approaching or stopped at the
crossing.
When an engine is operating without cars or is at the rear of the train, the trailing
headlight illuminated on bright may be used as a marker. *True or False?* - Answer-
True
Blue signals must be removed by whom? - Answer-The craft or group that placed them.
What does a blue signal signify? - Answer-That workmen are on, under, or between
rolling equipment.
When a blue signal is attached to an engine, unless directed by the craft who placed the
signal, ____________ is prohibited. - Answer-Changing controls, brake settings, turning
on or off switches or circuit breakers or starting or shutting down the engine.
If a signal is improperly displayed, or a signal, flag, or sign is absent from the place it
usually shown: - Answer-Regard the signal as displaying the most restrictive indication it
can give.
When must you display highly visible markers? - Answer-1 hour before sunset to 1 hour
after sunrise
If your highly visible marker becomes inoperative enroute, what must be done? -
Answer-Contact the dispatcher and continue to the next forward location where it can
be repaired or replaced.
What type of Track Bulletin is identified with asterisks? - Answer-Form "B"
