Gcor Abs System Quiz - 20 Questions

20 Questions | Total Attempts: 107

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Gcor Abs System Quiz - 20 Questions

Automatic Block Signal System


Questions and Answers
  • 1. 
    What is Automatic Block Signal System (ABS)? Glossary
    • A. 

      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.

    • B. 

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

    • C. 

      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.

  • 2. 
    Which of the following is an authority to occupy the main track in ABS territory? 
    • A. 

      Rule 6.13 (Yard Limits)

    • B. 

      Rule 10.3 (Track and Time)

    • C. 

      Rule 15.2 (Protection by track Bulletin form B)

  • 3. 
    Under which of the following conditions may track warrants be issued to more than one train with the same limits.  Rule 14.4
    • A. 

      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.

    • B. 

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

    • C. 

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

  • 4. 
    In ABS territory, when authorized to enter the signaled track, how is protection established?   Rule 9.17
    • A. 

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

    • B. 

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

    • C. 

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

  • 5. 
    In ABS territory, under which of the following conditions would a train be required to establish block signal protection by opening a switch and waiting 5 minutes?   Rule 9.17
    • A. 

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

    • B. 

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

    • C. 

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

  • 6. 
    When authorized to enter ABS territory, after lining the switch (a spring switch), a block signal governing your movement to the signaled track displays a Clear signal indication.  Will it be necessary to wait 5 minutes before entering the main?   Rule 9.17
    • A. 

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

    • B. 

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

    • C. 

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

  • 7. 
    In regards to the previous question, if after passing the Clear block signal to enter the main track, the conductor radios you to stop.  Which of the following is required?  Rule 8.9 Item 10K
    • A. 

      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.

    • B. 

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

    • C. 

      All of the above

  • 8. 
    After passing the Clear signal, the conductor has returned to the cab of the locomotive and your train is again ready to continue.  The next signal is displaying a Clear indication, how will you proceed in ABS territory?   ** Rule 9.9A ** 
    • A. 

      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.

    • B. 

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

    • C. 

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

  • 9. 
    When entering a signaled territory, if there is no block signal governing movement to the main track, how must you proceed to the next governing signal?   ** Rule 9.10 ** 
    • A. 

      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.

    • B. 

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

    • C. 

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

  • 10. 
    You are approaching the end of your limits and are required to "Clear Main Track at Last Named Point" to meet the UP 6871.  If possible, what must a crew member on the UP 6871 do while waiting for you to arrive?    ** Rule 6.9 ** 
    • A. 

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

    • B. 

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

    • C. 

      Both answers are correct.

  • 11. 
    Which of the following is correct regarding main track switches?   Rule 8.3 / 8.8
    • A. 

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

    • B. 

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

    • C. 

      Both answers are correct.

  • 12. 
    Where must the conductor of the UP 6871 position himself after lining the switch?   Rule 8.4
    • A. 

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

    • B. 

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

    • C. 

      Both answers are correct.

  • 13. 
    Before you enter the siding to meet the UP 6871, you encounter a signal governing main track movement that is displaying a red aspect and has a number plate.  How must you proceed?   Rule 9.2.14
    • A. 

      Proceed not exceeding 20 MPH

    • B. 

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

    • C. 

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

  • 14. 
    If a light is absent, a white light is displayed where a colored or lunar light should be, or additional colored or lunar lights are displayed.  Would it be okay to transmit by radio the aspect of this signal to another train, and how must a train treat an improperly displayed signal?   Rule 9.4 / 2.12
    • A. 

      No, Treat it as the most restrictive signal.

    • B. 

      No, only in an emergency.

    • C. 

      Both answers are correct.

  • 15. 
    The absolute signal (not a control point) that governs movement to the main track continues to display a STOP Indication; however the UP 6871 is between the siding switches.  After lining the switch, will it be necessary for the  UP 5267 East to wait 5 minutes before entering the main?                                                                                ** Rule 9.12.4 C / 9.17 ** 
    • A. 

      Yes

    • B. 

      No

  • 16. 
    What is the definition of an Absolute Signal?
    • A. 

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

    • B. 

      An absolute signal controlled by a control operator.

    • C. 

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

  • 17. 
    You have passed a Stop indication and the next governing signal is about 1 1/4 mile ahead and is displaying a Clear indication.  When may you comply with this signal?   ** Rule 9.8 / 9.11 **  
    • A. 

      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.

    • B. 

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

    • C. 

      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.

  • 18. 
    You are now stopped on the main track at an absolute signal displaying STOP outside interlocking limits that is not a control point; however you have a track warrant that grants authority beyond the signal.  How may you pass the absolute signal displaying STOP?  ** Rule 9.12.4 ** 
    • A. 

      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.

    • B. 

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

    • C. 

      Both answers are correct.

  • 19. 
    In regards to the previous question, would your actions be different if you were stopped at a Control Point in TWC/ABS territory? Explain...   ** Rule 9.12.4 **
    • A. 

      No, contact dispatcher

    • B. 

      No, Stop and contact dispatcher.

    • C. 

      Both answers are correct

  • 20. 
    The train below needs to make a return movement and it will be necessary to shove past an absolute signal, not a control point, displaying STOP outside of interlocking limits.  Will it be necessary to contact the dispatcher since equiptment has been left on the main track in TWC/ABS?   ** Rule 9.12.4 ** 
    • A. 

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

    • B. 

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

    • C. 

      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.

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