Gcor Abs System Quiz - 20 Questions

A series of consecutive blocks governed by block signals, cab signals, or both. The signals are activated by a train or by certain conditions that affect the block use.

A block system that uses block signal indications to authorize train movements.

A method of operation in non-signaled territory where trains, men, and equipment are authorized to occupy the main track in limits designated by the timetable.

Rule 6.13 (Yard Limits)

Rule 10.3 (Track and Time)

Rule 15.2 (Protection by track Bulletin form B)

Only when protected by an Automatic Block Signal system and permission is received to enter the overlapping limits from the employee(s) listed on the authority.

When protected by an Automatic Block Signal system and all trains are authorized to proceed in the same direction.

Only if a track warrant is issued to members of the same crew.

A crew member or switch tender must open the switch and wait 5 minutes at the switch to establish block signal protection.

The control operator or dispatcher must verify that there are no conflicting movements before giving the authority

A track warrant will authorize main track use under the direction of the train dispatcher or as prescribed by Rule 6.13 (Yard Limits).

A switch to enter the main track is not quipped with an electric lock.

The block to be entered is occupied by a train that is standing or moving away from the switch to be used.

Block signals governing main track movement indicate that a train is not approaching in either direction.

Block signal protection is not required when operating a spring switch in ABS territory.

After waiting 5 minutes, the train may enter the main track.

The 5 minute wait is not required when a block signal governing movement to the signaled track indicates proceed.

After the leading wheels have passed both insulated joints, the spring switch must be lined and locked for main track movement and a job briefing performed.

When stopping on a spring switch, the slack must be controlled.

All of the above

Proceed at restricted speed. The train must maintain this speed until the next signal is visible, that signal displays a proceed indication, and the track to that signal is clear.

Proceed prepared to stop at the next signal until the next signal is visible and that signal displays a proceed indication.

Proceed at restricted speed until the leading wheels have passed the next governing signal or the end of the block system.

Proceed at restricted speed. The train must maintain this speed until the next signal is visible, that signal displays a proceed indication, and the track to that signal is clear.

Proceed prepared to stop at the next signal until the next signal is visible and that signal displays a proceed indication.

Proceed at restricted speed until the leading wheels have passed the next governing signal or the end of the block system.

Line the switch for an opposing train to leave the main track.

Within ABS, the switch should not be lined until the opposing train has entered the block in advance.

Both answers are correct.

After lining the switch, the conductor must lock the switch and test the lock to ensure it is secure.

When authorized in TWC territory, a main track switch may be left open.

Both answers are correct.

The conductor must go to the opposite side of the main track.

If unable to go to the opposite side of the track, the employee must stand at least 20 feet from the switch stand.

Both answers are correct.

Proceed not exceeding 20 MPH

Stop before any part of train or engine passes the signal.

Proceed at restricted speed. Movement through the siding must be prepared to stop within half the range of vision (Rule 6.28)

No, Treat it as the most restrictive signal.

No, only in an emergency.

Both answers are correct.

Yes

No

A block or interlocking signal without a number plate, or designated by an "A" marker.

An absolute signal controlled by a control operator.

A fixed signal at the entrance of a block that governs trains entering and using that block.

The signal may be complied with when its aspect can be clearly seen, and the signal governs the track where movement is occurring or will be made.

The signal may not be complied with if a signal or rule requires movement at restricted speed.

The signal may be immediately complied with when its aspect can be clearly seen, and the train has cleared the siding and is operating on the main track.

Proceed at restricted speed when a crew member has contacted the train dispatcher and obtained permission to pass the STOP indication. If the train dispatcher cannot be contacted, move 100 feet past the signal, wait 5 minutes, and then proceed at restricted speed.

Proceed at restricted speed, if authority beyond the signal is joint with other trains or employees.

Both answers are correct.

No, contact dispatcher

No, Stop and contact dispatcher.

Both answers are correct

After stopping a crew member must contact the train dispatcher or control operator and obtain authority to pass the STOP indication.

Permission for a reverse movement will not be required since movement is within the same signaled block.

Movement may proceed at restricted speed to permit an engine, with or without cars, to couple to its train or to a standing cut of cars, if the track between the engine and cars is clear.