Answers
A block that must not be occupied by more than one train. - CORRECT ANSWER
Absolute Block:
A block signal that is activated either by track circuit or in conjunction with
interlocking or controlled point circuits. This block signal automatically indicates
track condition and block occupancy. - CORRECT ANSWER Automatic Block Signal
A block signal system in which the use of each block is governed by an automatic
block signal, cab signal, or both. - CORRECT ANSWER Automatic Block Signal
System (ABS):
A length of track with defined limits on which train movements are governed by
block signals, cab signals, or Form D. - CORRECT ANSWER Block
A fixed signal displayed to trains at the entrance of a block to govern use of that
block. - CORRECT ANSWER Block Signal:
A clearly distinguishable blue flag, blue light or blue tag by day, or a blue light or
blue tag by
night. When displayed, it signifies that workers are on, under or between
equipment - CORRECT ANSWER Blue Signal
,A hand-operated switch equipped with a pipe connected locking device that is
designed to shunt the signal system before the switch points are operated. -
CORRECT ANSWER Bolt-Lock Switch
A publication used to notify employees of changes to rules, procedures, or other
instructions affecting the movement of trains. Bulletin Orders are issued
periodically by the designated officer. - CORRECT ANSWER Bulletin Order (BO):
A signal that is located in the engine control compartment and which indicates
track occupancy or condition. The cab signal is used in conjunction with
interlocking signals and with or in lieu of block signals. - CORRECT ANSWER Cab
Signal:
The Dispatcher's office or the location where the Operator is on duty, from which
remote control signal appliances or switches are operated. - CORRECT ANSWER
Control Station
A station designated in the Timetable where signals are remotely controlled from
the control station. - CORRECT ANSWER Controlled Point (CP):
A circuited siding in which both ends are controlled and governed by signals under
the control of a Dispatcher or Operator. - CORRECT ANSWER Controlled Siding (CS)
A fixed signal, capable of displaying Stop indication, that is controlled by a
Dispatcher or Operator. - CORRECT ANSWER Controlled Signal:
,Two or more routes that intersect at the same level. Crossing at Grade may refer
to a railroad or highway crossing at grade. - CORRECT ANSWER Crossing at Grade
The assigned direction of movement on a Rule 251 main track, as specified in the
Timetable. - CORRECT ANSWER Current of Traffic:
A track safety device, designed to guide a car off the rails at a selected spot as a
means of protection against collisions or other accidents. - CORRECT ANSWER
Derail:
A fixed signal used to govern the approach of a train to a home signal. - CORRECT
ANSWER Distant Signal
A publication issued periodically by the designated officer, which contains
instructions or information which do not affect the movement of trains. -
CORRECT ANSWER Division Notice (DN):
A power-operated switch also equipped for hand operation. - CORRECT ANSWER
Dual Control Switch
A switch padlock that is vandal and tamper resistant, and can be unlocked only by
the class, group or craft of employees that applied it. - CORRECT ANSWER Effective
Locking Device
A hand-operated switch equipped with an electrically controlled device that
restricts the movement of the switch. - CORRECT ANSWER Electrically Locked
Switch:
, A qualified employee responsible for establishing protection for a roadway worker
or roadway workgroup. - CORRECT ANSWER Employee in Charge (EIC)
A unit or combination of units propelled by any form of energy and operated from
a single control, used in train or yard service. The word "engine" may also be used
to identify control cars. - CORRECT ANSWER Engine (Eng):
A Train not designated by a Timetable schedule. - CORRECT ANSWER Extra Train
A signal at a fixed location that affects the movements of a train. - CORRECT
ANSWER Fixed Signal:
A block system, signaled or non-signaled, in which the movements of trains
outside of the yard limits is authorized by Form D. - CORRECT ANSWER Form D
Control System (DCS)
Being in such proximity to a track that an individual, tools or equipment could be
struck by a moving train or other on-track equipment, or in any case is within four
feet of the nearest rail. - CORRECT ANSWER Fouling a Track
The point on a track beyond which equipment will foul an adjacent track. Fouling
points will not safely accommodate a person riding the side of a car. - CORRECT
ANSWER Fouling Point