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LET Signals and Definitions > Recognize the Definitions > Flashcards

Recognize the Definitions Flashcards

To recognize the definitions and correctly match them to the name

1
Q

A length of track of defined limits, the use of which is governed by block signals, block-limit signals, automatic speed control or any combination thereof.

A

Block

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2
Q

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.

A

Absolute Block

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3
Q

A block signal system wherein the use of each block is governed by an automatic block signals, the cab signal indicator or both.

A

Automatic Block Signal System

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4
Q

A series of consecutive blocks

A

Block Signal System

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5
Q

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.

A

Manual Block Signal System

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6
Q

A system so arranged that is 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.

A

Automatic Speed Control System

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7
Q

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.

A

Speed Controlled Train

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8
Q

A unit propelled by any form of energy or a combination of units operated from a single control, used in road or yard service.

A

Engine

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9
Q

Equipment capable of being propelled by electrical energy through the use of third rail contact shoes.

A

Multiple Unit Equipment

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10
Q

A roadway maintenance machine, not classified as an engine, which is operated on track for inspection or maintenance. It may not shunt tracks circuits or operate signals and will be governed by rules and special instructions for trains other than passenger trains.

A

Track Car

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11
Q

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.

A

Interlocking

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12
Q

The tracks between the extreme opposing home signals of an interlocking.

A

Interlocking Limits

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13
Q

An 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.

A

Pilot

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14
Q

The appearance of a fixed signal which conveys an indication as view from the direction of an approaching train: the appearance of a cab signal indicator as view in the engine control compartment.

A

Aspect

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15
Q

A fixed signal indicating the limit of the block, the use of which is governed by manual block signal system rules.

A

Block-Limit Signal

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16
Q

A fixed signal or a hand signal in the absence of a fixed signal, at the entrance to a block that governs trains using that block.

A

Block Signal

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17
Q

A signal indicator located in the engine control compartment displaying the maximum speed for the movement of the train. It will be used in conjunction with interlocking signals and either in conjunction with or in lieu of block signals.

A

Cab Signal Indicator

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18
Q

A fixed signal used to govern the approach to a home signal.

A

Distant Signal

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19
Q

A signal of a fixed location indicating a condition which affects the movement of the train.

A

Fixed Signal

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20
Q

A fixed signal that displays Stop as its most restrictive aspect and governs the entrance to a route or block.

A

Home Signal

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21
Q

The information conveyed by the aspect of a signal.

A

Indication

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22
Q

The fixed signals of an interlocking.

A

Interlocking Signals

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23
Q

A highly visible marking device in the red-orange-amber color range, affixed to the rear of the train to indicate that the train is complete.

A

Marker

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24
Q

A speed not exceeding 40 MPH.

A

Limited Speed

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25
Q

The highest speed that is permitted over a specific portion of the railroad. It may be authorized by the special instructions of the current timetable, Rules of the Operating Department or any other publication authorized by the General Superintendent-Transportation.

A

Maximum Authorized Speed

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26
Q

A speed not exceeding 30 MPH, except in ASC territory, train will be governed by speed displayed on the cab signal indicator not to exceed 40 MPH.

A

Medium Speed

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27
Q

A speed at which a train can be stopped short of another train or obstruction.

A

Reduced Speed

28
Q

A mode of operation at which a train can be stopped within one half the range of vision, short of the next signal, another train, obstruction, derail, or switch improperly lined, looking out for broken rail or crossing protection not functioning, not exceeding 15 miles per hour.

A

Restricted Speed

29
Q

A speed not exceeding 15 MPH, except in ASC territory, train will be governed by speed displayed on the cab signal indicator not exceeding 30 MPH.

A

Slow Speed

30
Q

A 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.

A

Automatic Safety Switch

31
Q

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.

A

Crossover

32
Q

A track safety device, fixed or portable, designed to guide a car off the rails at a selected location on a track as a means of protection against collisions or other accidents.

A

Derail

33
Q

A power-operated switch also equipped for hand operation.

A

Dual Control Switch

34
Q

A hand-operated switch equipped with an electrical device that restricts the movement of the switch.

A

Electric Lock Switch

35
Q

A switch that must be aligned by hand before a train makes a trailing point movement through the switch.

A

Hand-Operated Switch

36
Q

A switch within interlocking limits controlled by the Block Operator or Train Dispatcher working in conjunction with interlocking signals and other interlocking appliances.

A

Interlocking Switch

37
Q

A switch equipped with a spring mechanism that will restore the switch points to the normal position after having been trailed through.

A

Spring Switch

38
Q

A place at which a block-limit signal is displayed.

A

Block-Limit Station

39
Q

A place at which manual block signals are displayed.

A

Block Station

40
Q

A place from which an interlocking is operated.

A

Interlocking Station

41
Q

A place at which trains are scheduled to receive and/or discharge passengers.

A

Passenger Station

42
Q

A place designated by name on the station pages of the current timetable.

A

Station

43
Q

A notice issues to employees by the General Superindendent-Transportation. It may contain operating instructions or other information as may be necessary.

A

General Notice

44
Q

An order issued to employees by the General Superintendent-Transportaion. It may change or annul operating rules, timetable information or special instructions.

A

General Order

45
Q

That part of a timetable that prescribes direction, number and movement of a regular train.

A

Schedule

46
Q

The authority for the movement of regular trains subject to the rules. It contains classified schedules and special instructions relating to the movement of trains.

A

Timetable

47
Q

A designated track, the entrance and exit of which are governed by home signals.

A

Controlled Siding

48
Q

The movement of trains on a main track in one direction, as specified by special instruction.

A

Current of Traffic

49
Q

A track, or a series of tracks, serving the needs of a commercial industry other than a railroad.

A

Industry Track

50
Q

A designated track upon which trains are operated by timetable, Form L or both or the use of which is governed by block signals.

A

Main Track

51
Q

A designated track upon which trains may be operated without timetable or Form L authority, or block signals subject to the prescribed signals, rules and special instructions.

A

Secondary Track

52
Q

A designated track adjacent to a main track for the meeting or passing of trains.

A

Siding

53
Q

A main track upon which trains are operated in both directions.

A

Single Track

54
Q

Two or more main tracks upon which trains are operated as designated in the special instructions.

A

Two or More Tracks

55
Q

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 prescribed signals, rules and special instructions.

A

Yard

56
Q

A portion of single main track between yard limit boards, as specified by special instruction.

A

Yard Limits

57
Q

Any on-track vehicle, except a wreck train, that is used to house railroad or contract employees.

A

Camp Car

58
Q

A train not authorized by a timetable schedule. It may 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

A

Extra Train

59
Q

A train carrying revenue passengers.

A

Passenger Train

60
Q

A train consisting of a bi-level cab control car at one end and a diesel or dual mode locomotive at the opposite end.

A

Push-Pull train

61
Q

A train authorized by a timetable schedule.

A

Regular Train

62
Q

A train having precedence over another train.

A

Superior Train

63
Q

An engine or more than one engine coupled, with or without cars, displaying markers.

A

Train

64
Q

A train given precedence in the direction specified as between opposing regular trains.

A

Train of Superior Direction

65
Q

A train given precedence by Form L.

A

Train of Superior Right

LET Signals and Definitions (4 decks)

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