GCOR PRACTICE EXAM 2026 QUESTIONS
WITH 100% VERIFIED CORRECT ANSWERS
RATED A+
◉ 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.
WITH 100% VERIFIED CORRECT ANSWERS
RATED A+
◉ 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.
