GCOR Exam 1 Study Set Questions and Answers 100% correct
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Course
Gcor
Institution
Gcor
GCOR Exam 1 Study Set Questions and Answers 100% correct
Absolute Block
A length of track that no train is permitted to enter while the track is occupied by another train.
Absolute Signal
A block or interlocking signal without a number plate, or designated by an A marker.
Articulat...
GCOR Exam 1 Study Set Questions and
Answers 100% correct
Absolute Block - answer A length of track that no train is permitted to enter while the
track is occupied by another train.
Absolute Signal - answer A block or interlocking signal without a number plate, or
designated by an A marker.
Articulated - answer Permanently connected multiple unit cars that share a common
truck.
Automatic Block Signal 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.
Automatic Cab Signal System (ACS) - answer A system that allows cab signals and
the cab warning whistle to operate automatically.
Automatic Train Control (ATC) - answer A system to enforce compliance with cab
and wayside signal indications. If the train exceeds a predetermined speed for a given
signal indication and speed is not reduced at a sufficient rate, brakes are automatically
applied.
Block - answer A length of track:
× between a consecutive block signals.
× between a block signal in the end of block system limits.
or
× in ATC limits the use of which is governed by cab signals and or block signals.
Block Signal - answer A fixed signal at the entrance of a block that governs trains
entering and using that block.
Block System - answer A block or series of consecutive blocks within ABS, ACS,
CTC, or interlocking limits.
Cab Signal - answer A signal in the engineer's compartment or cab that indicates a
condition affecting train movement. Cab signals are used with interlocking or block
signals or without block signals.
, Cars - answer Railroad cars.
Centralized Traffic Control (CTC) - answer A block system that uses block signal
indications to authorize train movements.
Clearance Point - answer The location closest to a switch where it is safe for
equipment, and a person riding the side of equipment unless prohibited, to pass
equipment on an adjacent track.
Conductor - answer Crew member in charge of train or yard crew.
Control Operator - answer 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 control
operator.
Controlled Sidings - answer A siding within CTC or interlocking limits where a signal
idlndication authorizes the siding's use.
Crew Member - answer Conductors, assistant conductors, brakemen, engineers,
remote control operators, yard engine foremen, switchmen, and yard helpers.
Crossover - answer A track connection between two adjacent, not necessarily
parallel tracks, consisting of a minimum of two switches, which is intended to be used
primarily for the purpose of crossing over from one track to another.
Current of Traffic - answer The movement of trains on a main track in one direction,
as specified by special instruction.
Distant Signal - answer A fixed signal outside a block system that governs the
approach to a block signal, interlocking signal, or switch point indicator. A distant signal
does not indicate conditions that affect track use between the distant signal and block or
interlocking signals or between the distant signal and switch point indicator. A distant
signal is identified by a D.
Double Track - answer Two main tracks where the current of traffic on one track is in
a specified direction and in the opposite direction on the other.
Dual Control Switch - answer A power-operated switch, moveable point frog, or
derail that can also be operated by hand.
Engineer - answer Also includes student engineers, firemen, hostler, and remote
control operators.
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