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GCOR Practice Test Questions and Answers
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GCOR Practice Test Questions and Answers Dual Control Switch A power operated switch, movable point frog, or derail that can also be operated by hand. Electric Switch Lock An electrically controlled lock that restricts the use of a hand operated switch or derail. Absolute Signal A...

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  • August 5, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • gcor practice test questions and answers
  • dual control switch a power operated switch movab
  • electric switch lock an electrically controlled lo
  • absolute signal a block or interlocking signal wit

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GCOR Practice Test Questions and
Answers
Dual Control Switch - answer A power operated switch, movable point frog, or derail
that can also be operated by hand.

Electric Switch Lock - answer An electrically controlled lock that restricts the use of a
hand operated switch or derail.

Absolute Signal - answer A block or interlocking signal without a number plate or
designated by an A marker.

Automatic Block System (ABS) - answer 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.

Block - answer A length of track between consecutive block signals or between a
block signal and the end of block system limits.

Centralized Traffic Control (CTC) - answer A block system that uses block signal
indications to authorize train movements.

Control Operator - answer An employee assigned to operate a CTC or interlocking
control machine or authorized to grant track permits.

Control Point - answer The location of absolute signals controlled by a central
operator or a railroad identifiable point as defined in the Timetable.

Controlled Siding - answer A siding within CTC and Interlocking limits where a signal
indication authorizes the siding's use.

Controlled Signal - answer An absolute signal controlled by a control operator.

Controlled Track - answer Track upon which the railroad's operating rules require
that all movements of trains must be authorized by a train dispatcher or a control
operator.

Crossover - answer A combination of two switches that connect two adjacent tracks.

Interlocking Signals - answer The fixed signals of an interlocking that govern trains
using interlocking limits.

, Loaded Bulk Commodity Train - answer Loaded Unit Trains are defined as a train of
50 or more loaded cars in a block, each weighing 125 tons gross weight or more (bulk
commodities), such as coal, grain, soda ash, etc.

Main Track - answer A track extending through yards and between stations that must
be occupied without authority or protection.

Non-Controlled Track - answer Track upon which trains are permitted by railroad rule
or special instruction to move without recieving authorization from train dispatcher or
control operator.

Off-Track Equipment - answer Machines that may be operated on the right of way
foul of track.

Proceed Indication - answer Any block signal indication that allows a train to proceed
without stopping.

Reverse Movement - answer A movement opposite the authorized direction.

Siding - answer A track connected to the main track and used for meeting or passing
trains. Locations of sidings are shown int he Timetable.

Special Instructions - answer Instructions contained in the Timetable or other
publications.

Station - answer A place designated by name in the Timetable station column.

Track Bulletin - answer A notice of coinditions affecting train movement. It may also
authorize movement against the current of traffic where rule 9.14 (movement witht he
Current of Traffic) is in effect.

Track Car - answer Any equipment which is designed to operate on the rail, other
than a Locomotive or railroad car.

Track Warrant Control (TWC) - answer A method to authorize train movements or
protect man or machines on a main track within specified limits in a territory designated
by the timeline.

Train - answer One or more engines coupled, with or without cars, displaying a
marker, and authorized to operate ont he main track.

Yard Limit - answer A portion of main track designated by yard limit signs and time
table special instructions or a track bulletin.

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