LIRR DEFINITIONS EXAM
QUESTIONS WITH
COMPLETE SOLUTIONS
2025.
, WORKING LIMITS - ANSWERA segment of track with definite boundaries upon which
trains may move only as authorized by the roadway worker in charge of that segment of
track.
AUTOMATIC SPEED CONTROL SYSTEM - ANSWERA system so arranged that its
operation will automatically result in the following: A full service application of the train
brakes if, while operating under a speed restriction, the speed of the train exceeds the
predetermined rate. The application will continue until the train is either brought to a
stop, or under the control of the engineer, its speed is reduced to the predetermined
rate.
INTERLOCKING SWITCH - ANSWERA switch within interlocking limits controlled by
the Block Operator or Train Dispatcher working in conjunction with interlocking signals
and other interlocking appliances.
BLOCK-LIMIT STATION - ANSWERA place at which a block-limit signal is displayed.
AUTOMATIC SAFETY SWITCH - ANSWERA switch identified by a yellow switch stand.
Trains may make trailing point moves through the switch without previously aligning it
by hand. Except as specified by Timetable Special Instruction.
MANUAL BLOCK SIGNAL SYSTEM - ANSWERA block signal system wherein the use
of each block is governed by block signals controlled manually, by block-limit signals or
both, upon information received by telephone, radio, or other means of communication.
INTERLOCKING LIMITS - ANSWERThe tracks between the extreme opposing home
signals of an interlocking.
ASPECT - ANSWERThe appearance of a fixed signal which conveys an indication as
viewed from the direction of an approaching train; the appearance of a cab signal
indicator as viewed in the engine control compartment.
BLOCK-LIMIT SIGNAL - ANSWERA fixed signal indicating the limit of the block, the use
of which is governed by manual block signal system rules.
FIXED SIGNAL - ANSWERA signal of a fixed location indicating a condition which
affects the movement of a train.
PILOT - ANSWERAn employee assigned to a train or track car when the engineer,
conductor or track car driver is not qualified on the physical characteristics or rules of
the railroad or portion of the railroad over which the movement is to be made.
QUESTIONS WITH
COMPLETE SOLUTIONS
2025.
, WORKING LIMITS - ANSWERA segment of track with definite boundaries upon which
trains may move only as authorized by the roadway worker in charge of that segment of
track.
AUTOMATIC SPEED CONTROL SYSTEM - ANSWERA system so arranged that its
operation will automatically result in the following: A full service application of the train
brakes if, while operating under a speed restriction, the speed of the train exceeds the
predetermined rate. The application will continue until the train is either brought to a
stop, or under the control of the engineer, its speed is reduced to the predetermined
rate.
INTERLOCKING SWITCH - ANSWERA switch within interlocking limits controlled by
the Block Operator or Train Dispatcher working in conjunction with interlocking signals
and other interlocking appliances.
BLOCK-LIMIT STATION - ANSWERA place at which a block-limit signal is displayed.
AUTOMATIC SAFETY SWITCH - ANSWERA switch identified by a yellow switch stand.
Trains may make trailing point moves through the switch without previously aligning it
by hand. Except as specified by Timetable Special Instruction.
MANUAL BLOCK SIGNAL SYSTEM - ANSWERA block signal system wherein the use
of each block is governed by block signals controlled manually, by block-limit signals or
both, upon information received by telephone, radio, or other means of communication.
INTERLOCKING LIMITS - ANSWERThe tracks between the extreme opposing home
signals of an interlocking.
ASPECT - ANSWERThe appearance of a fixed signal which conveys an indication as
viewed from the direction of an approaching train; the appearance of a cab signal
indicator as viewed in the engine control compartment.
BLOCK-LIMIT SIGNAL - ANSWERA fixed signal indicating the limit of the block, the use
of which is governed by manual block signal system rules.
FIXED SIGNAL - ANSWERA signal of a fixed location indicating a condition which
affects the movement of a train.
PILOT - ANSWERAn employee assigned to a train or track car when the engineer,
conductor or track car driver is not qualified on the physical characteristics or rules of
the railroad or portion of the railroad over which the movement is to be made.
