GCOR COMPREHENSIVE EXAM QUESTIONS AND
ANSWERS SET A+
✔✔63. What must a train have before occupying and initiating movement on a main
track? - ✔✔Authorization protection from a dispatcher.
✔✔64. Which rules authorize a train to occupy a main track? - ✔✔Rule 6.13- yard limits,
rule 6.14 - restricted limits, Rule 6.15 - Block registry territory, rule 9.14 - movement with
the current of traffic, rule 10.1 - Authority to enter CTC limits, rule 14.1 - Authority to
enter TWC limits, rule 14.6 - movement against the current of traffic, rule 15.3 -
authorizing movement against the current of traffic. , rule 15.4 - protection when tracks
are removed from service, rule 16.1 - Authority to enter DTC limits, and rule 9.15 - track
permits
✔✔65. How must a train proceed after observing a block signal displaying an approach
indication within yard limits? - ✔✔The movement must be made at restricted speed at
the block signal.
✔✔66. What are the two ways that a train can be authorized to operate with the current
of traffic? - ✔✔1. When a control operator or train dispatcher gives authorization or
2. A controlled signal indicates proceed
✔✔67. How may a train operating on track having a current of traffic report clear of the
limits - ✔✔Only when it is known the train is complete, determined by:
1. the rear of the train has a rear end telemetry device, and air pressure on the head
end device indicates brake pipe continuity.
2. An employee verifies the marker is on the rear of the train.
3. A crew member can observe the rear car of the train on which the marker is placed.
4. A trackside warning detector transmits an axle count for the train, and axle count
duplicates the axle count transmitted by the previous trackside warning detector.
, ✔✔68. What is required of a train crew when a track bulletin authorizes their train to
move against the current of traffic? (15.3) - ✔✔The train must use only the track
specified between the points authorized in the track bulletin. The train dispatcher must
not authorize a following train to move against the current of traffic until the previous
train has cleared the last point.
✔✔69. How is a train authorized to enter or occupy any track where CTC is in effect? -
✔✔By a control operator and buy signal indication
✔✔70. How may trains be authorized to enter track warrant control limits? - ✔✔By a
track warrant
✔✔71. What is required if a track warrant authorizes a train to move against the current
of traffic? - ✔✔1. The train must use only the track designated within the specified limits.
2. The train must not allow a train following on the same track to pass, unless the train
dispatcher instructs to pass.
✔✔72. How are trains authorized to enter or occupy DTC territory? - ✔✔Only by train
dispatcher
✔✔73. Where can reverse moves be made? - ✔✔On any main track, controlled siding,
or on any track where a block system is in effect at restricted speed and only within the
limits a train has the authority to occupy track.
✔✔74. At what speed must reverse movements be made? - ✔✔At restricted speed
✔✔75. When is permission required for a reverse movement? - ✔✔If the movement is
to be made beyond the currently occupied signal block, and if working limits are
established within the same block.
✔✔76. Who can give permission for a reverse movement? - ✔✔The train dispatcher or
control operator.
✔✔77. At what speed must a train move required to operate according to rule 6.27
Movement at Restricted Speed? - ✔✔Not exceeding 20 mph
✔✔78. How is rule 6.27, movement at restricted speed, and rule 6.28, movement on
other than main track, different? - ✔✔Both require the ability to stop within half the
range of vision, however, rule 6.28 does not limit the speed to 20 mph or less.
✔✔79. If your train passes a signal requiring movement at restricted speed, and the
next signal is seen to be displaying a more favorable aspect, when may you operate
according to the next signal? - ✔✔Only after the leading wheels have passed the next
signal.
ANSWERS SET A+
✔✔63. What must a train have before occupying and initiating movement on a main
track? - ✔✔Authorization protection from a dispatcher.
✔✔64. Which rules authorize a train to occupy a main track? - ✔✔Rule 6.13- yard limits,
rule 6.14 - restricted limits, Rule 6.15 - Block registry territory, rule 9.14 - movement with
the current of traffic, rule 10.1 - Authority to enter CTC limits, rule 14.1 - Authority to
enter TWC limits, rule 14.6 - movement against the current of traffic, rule 15.3 -
authorizing movement against the current of traffic. , rule 15.4 - protection when tracks
are removed from service, rule 16.1 - Authority to enter DTC limits, and rule 9.15 - track
permits
✔✔65. How must a train proceed after observing a block signal displaying an approach
indication within yard limits? - ✔✔The movement must be made at restricted speed at
the block signal.
✔✔66. What are the two ways that a train can be authorized to operate with the current
of traffic? - ✔✔1. When a control operator or train dispatcher gives authorization or
2. A controlled signal indicates proceed
✔✔67. How may a train operating on track having a current of traffic report clear of the
limits - ✔✔Only when it is known the train is complete, determined by:
1. the rear of the train has a rear end telemetry device, and air pressure on the head
end device indicates brake pipe continuity.
2. An employee verifies the marker is on the rear of the train.
3. A crew member can observe the rear car of the train on which the marker is placed.
4. A trackside warning detector transmits an axle count for the train, and axle count
duplicates the axle count transmitted by the previous trackside warning detector.
, ✔✔68. What is required of a train crew when a track bulletin authorizes their train to
move against the current of traffic? (15.3) - ✔✔The train must use only the track
specified between the points authorized in the track bulletin. The train dispatcher must
not authorize a following train to move against the current of traffic until the previous
train has cleared the last point.
✔✔69. How is a train authorized to enter or occupy any track where CTC is in effect? -
✔✔By a control operator and buy signal indication
✔✔70. How may trains be authorized to enter track warrant control limits? - ✔✔By a
track warrant
✔✔71. What is required if a track warrant authorizes a train to move against the current
of traffic? - ✔✔1. The train must use only the track designated within the specified limits.
2. The train must not allow a train following on the same track to pass, unless the train
dispatcher instructs to pass.
✔✔72. How are trains authorized to enter or occupy DTC territory? - ✔✔Only by train
dispatcher
✔✔73. Where can reverse moves be made? - ✔✔On any main track, controlled siding,
or on any track where a block system is in effect at restricted speed and only within the
limits a train has the authority to occupy track.
✔✔74. At what speed must reverse movements be made? - ✔✔At restricted speed
✔✔75. When is permission required for a reverse movement? - ✔✔If the movement is
to be made beyond the currently occupied signal block, and if working limits are
established within the same block.
✔✔76. Who can give permission for a reverse movement? - ✔✔The train dispatcher or
control operator.
✔✔77. At what speed must a train move required to operate according to rule 6.27
Movement at Restricted Speed? - ✔✔Not exceeding 20 mph
✔✔78. How is rule 6.27, movement at restricted speed, and rule 6.28, movement on
other than main track, different? - ✔✔Both require the ability to stop within half the
range of vision, however, rule 6.28 does not limit the speed to 20 mph or less.
✔✔79. If your train passes a signal requiring movement at restricted speed, and the
next signal is seen to be displaying a more favorable aspect, when may you operate
according to the next signal? - ✔✔Only after the leading wheels have passed the next
signal.
