LIRR BLOCK OPERATOR COMPREHENSIVE EXAMS 2025
QUESTIONS AND ANSWERS RATED A+
✔✔Yard - ✔✔A system of tracks, other than main tracks, secondary tracks or sidings,
used for making up trains, storing cars and other purposes. All movements are subject
to the prescribed signals, rules and special instructions.
✔✔Yard Limits - ✔✔A portion of single main track between yard limit boards, as
specified by special instructions.
✔✔Camp Car - ✔✔Any on-track vehicle, except a wreck train, that is used to house
railroad or contract employees.
✔✔Extra Train - ✔✔A train not authorized by timetable schedule. It must be designated
as:
Passenger extra- for passenger train extra
Work Extra- for work train extra
Track Car Extra- for track car extra
Extra- For any other extra train except passenger extra, work extra or track car extra.
✔✔Passenger Train - ✔✔A train carrying revenue passengers.
✔✔Push-Pull Train - ✔✔A train consisting of a bi-level cab control car at one end and a
diesel or dual mode locomotive at the opposite end.
✔✔Regular Train - ✔✔A train authorized by timetable schedule.
✔✔Superior Train - ✔✔A train having precedence over another train.
✔✔Train - ✔✔An engine or more that one engine coupled, with or without cars,
displaying markers.
✔✔Train of Superior Direction - ✔✔A train given precedence in the direction specified
as between opposing regular trains.
✔✔Train of Superior Right - ✔✔A train given precedence by Form L.
✔✔ Block - ✔✔A length of track of defined limits, the use of which is governed by
blocked signals, block-limit signals, automatic speed control or any combination thereof.
✔✔Absolute Block - ✔✔A block established between block stations, block limit stations,
interlockings or any combination thereof which must not be occupied by more than one
train except as provided by the rules.
, ✔✔Automatic Block Signal System - ✔✔A block signal system where the use of each
block is governed by an automatic block signal, the cab signal indicator or both.
✔✔Block Signal System - ✔✔A series of consecutive blocks.
✔✔Manual Block Signal System - ✔✔A 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.
✔✔Automatic Speed Control System (ASC) 1 - ✔✔A 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.
✔✔Automatic Speed Control System (ASC) 2 - ✔✔The application will continue until the
train is either brought to a stop or, under the control of the engineer, its speed its
reduced to the predetermined rate.
✔✔Speed Controlled Train - ✔✔A train equipped with the following speed control
apparatus, a cab signal indicator, sealed application valve or switch, audible warning
device and acknowledging switch, in operative condition for the direction in which it is to
move.
✔✔Engine (ENG) - ✔✔A unit propelled by any form of energy or a combination of units
operated from a single control, used in road or yard service.
✔✔Multiple Unit Equipment - ✔✔Equipment capable of being propelled by electrical
energy through the use of third rail contact shoes.
✔✔Track Car (TC) - ✔✔A roadway maintenance machine, not classified as an engine,
which is operated on track for inspection or maintenance. It may not shunt track circuits
or operate signals and will be governed by rules and special instructions for trains other
than passenger trains.
✔✔Interlocking (INT) - ✔✔An arrangement of signals and signal appliances so
interconnected that their movements must succeed each other in proper sequence and
for which interlocking rules are in effect.
✔✔Interlocking Limits - ✔✔The tracks between the extreme opposing home signals of
an interlocking.
✔✔Pilot - ✔✔An employee assigned to train or track car when the engineer, conductor
or track car driver is not qualified on the physical characteristic or rules of the railroad or
portion of the railroad over which the movement is to be made.
QUESTIONS AND ANSWERS RATED A+
✔✔Yard - ✔✔A system of tracks, other than main tracks, secondary tracks or sidings,
used for making up trains, storing cars and other purposes. All movements are subject
to the prescribed signals, rules and special instructions.
✔✔Yard Limits - ✔✔A portion of single main track between yard limit boards, as
specified by special instructions.
✔✔Camp Car - ✔✔Any on-track vehicle, except a wreck train, that is used to house
railroad or contract employees.
✔✔Extra Train - ✔✔A train not authorized by timetable schedule. It must be designated
as:
Passenger extra- for passenger train extra
Work Extra- for work train extra
Track Car Extra- for track car extra
Extra- For any other extra train except passenger extra, work extra or track car extra.
✔✔Passenger Train - ✔✔A train carrying revenue passengers.
✔✔Push-Pull Train - ✔✔A train consisting of a bi-level cab control car at one end and a
diesel or dual mode locomotive at the opposite end.
✔✔Regular Train - ✔✔A train authorized by timetable schedule.
✔✔Superior Train - ✔✔A train having precedence over another train.
✔✔Train - ✔✔An engine or more that one engine coupled, with or without cars,
displaying markers.
✔✔Train of Superior Direction - ✔✔A train given precedence in the direction specified
as between opposing regular trains.
✔✔Train of Superior Right - ✔✔A train given precedence by Form L.
✔✔ Block - ✔✔A length of track of defined limits, the use of which is governed by
blocked signals, block-limit signals, automatic speed control or any combination thereof.
✔✔Absolute Block - ✔✔A block established between block stations, block limit stations,
interlockings or any combination thereof which must not be occupied by more than one
train except as provided by the rules.
, ✔✔Automatic Block Signal System - ✔✔A block signal system where the use of each
block is governed by an automatic block signal, the cab signal indicator or both.
✔✔Block Signal System - ✔✔A series of consecutive blocks.
✔✔Manual Block Signal System - ✔✔A 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.
✔✔Automatic Speed Control System (ASC) 1 - ✔✔A 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.
✔✔Automatic Speed Control System (ASC) 2 - ✔✔The application will continue until the
train is either brought to a stop or, under the control of the engineer, its speed its
reduced to the predetermined rate.
✔✔Speed Controlled Train - ✔✔A train equipped with the following speed control
apparatus, a cab signal indicator, sealed application valve or switch, audible warning
device and acknowledging switch, in operative condition for the direction in which it is to
move.
✔✔Engine (ENG) - ✔✔A unit propelled by any form of energy or a combination of units
operated from a single control, used in road or yard service.
✔✔Multiple Unit Equipment - ✔✔Equipment capable of being propelled by electrical
energy through the use of third rail contact shoes.
✔✔Track Car (TC) - ✔✔A roadway maintenance machine, not classified as an engine,
which is operated on track for inspection or maintenance. It may not shunt track circuits
or operate signals and will be governed by rules and special instructions for trains other
than passenger trains.
✔✔Interlocking (INT) - ✔✔An arrangement of signals and signal appliances so
interconnected that their movements must succeed each other in proper sequence and
for which interlocking rules are in effect.
✔✔Interlocking Limits - ✔✔The tracks between the extreme opposing home signals of
an interlocking.
✔✔Pilot - ✔✔An employee assigned to train or track car when the engineer, conductor
or track car driver is not qualified on the physical characteristic or rules of the railroad or
portion of the railroad over which the movement is to be made.
