NORAC definitions UPDATED ACTUAL Questions and CORRECT
Answers
1. Absolute Block A block that must not be occupied by more than one train.
2. Authorized Busi- A purpose directly related to the tasks that an employee is expected to perform
ness Purpose during the current tour of duty, as specified by the railroad in writing.
3. Automatic Block A block signal that is activated either by a track circuit or in conjunction with an
Signal interlocking or controlled point circuit. This block signal automatically indicates
track condition and block occupancy
4. Automatic Block A block signal system in which the use of each block is governed by an automatic
Signal System block signal, cab signal, or both.
(ABS)
5. Automatic Train A device on an engine which will cause a penalty application of the brakes if the
Stop (ATS) engineer fails to acknowledge a cab signal change to a more restrictive indication.
6. Ave Avenue
7. Block A length of track of defined limits on which train movements are governed by block
signals, cab signals, or Form D.
8. Block Signal A fixed signal displayed to trains at the entrance of a block to govern the use of
that block
9. Blocking Device A method of control that prohibits the operation of a switch or signal, restricts
access to a section of track, or is used to protect conditions specific to operating
rule(s).
10. BDA Blocking Device Applied
11. BDR Blocking Device Removed
12. Blue Signal
, NORAC definitions UPDATED ACTUAL Questions and CORRECT
Answers
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.
13. Bolt-Lock Switch 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.
14. Bulletin Order A publication used to notify employees of changes to rules, procedures, or other
(BO) instructions affecting the movement of trains. Bulletin Orders are issued period-
ically by the designated oflcer.
15. Cab Signal 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 inter-
locking signals and with or in lieu of block signals.
16. CSS Cab Signal System
17. Camp Car Any on-track vehicle, except a wreck train, that is used to house railroad or contract
employees.
18. Cars railroad cars
19. Car Shop Repair One or more tracks within an area in which the testing, servicing, repairing,
Track Area inspecting, or rebuilding of cars is under the exclusive control of mechanical
department personnel.
20. Cndr Conductor
21. C&E Conductor & Engineer
22. Consist As applied, the term means:
Train: The coupled cars forming a complete train.
Engine or Lite Locomotive: A single Locomotive or coupled Locomotive attached
Answers
1. Absolute Block A block that must not be occupied by more than one train.
2. Authorized Busi- A purpose directly related to the tasks that an employee is expected to perform
ness Purpose during the current tour of duty, as specified by the railroad in writing.
3. Automatic Block A block signal that is activated either by a track circuit or in conjunction with an
Signal interlocking or controlled point circuit. This block signal automatically indicates
track condition and block occupancy
4. Automatic Block A block signal system in which the use of each block is governed by an automatic
Signal System block signal, cab signal, or both.
(ABS)
5. Automatic Train A device on an engine which will cause a penalty application of the brakes if the
Stop (ATS) engineer fails to acknowledge a cab signal change to a more restrictive indication.
6. Ave Avenue
7. Block A length of track of defined limits on which train movements are governed by block
signals, cab signals, or Form D.
8. Block Signal A fixed signal displayed to trains at the entrance of a block to govern the use of
that block
9. Blocking Device A method of control that prohibits the operation of a switch or signal, restricts
access to a section of track, or is used to protect conditions specific to operating
rule(s).
10. BDA Blocking Device Applied
11. BDR Blocking Device Removed
12. Blue Signal
, NORAC definitions UPDATED ACTUAL Questions and CORRECT
Answers
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.
13. Bolt-Lock Switch 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.
14. Bulletin Order A publication used to notify employees of changes to rules, procedures, or other
(BO) instructions affecting the movement of trains. Bulletin Orders are issued period-
ically by the designated oflcer.
15. Cab Signal 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 inter-
locking signals and with or in lieu of block signals.
16. CSS Cab Signal System
17. Camp Car Any on-track vehicle, except a wreck train, that is used to house railroad or contract
employees.
18. Cars railroad cars
19. Car Shop Repair One or more tracks within an area in which the testing, servicing, repairing,
Track Area inspecting, or rebuilding of cars is under the exclusive control of mechanical
department personnel.
20. Cndr Conductor
21. C&E Conductor & Engineer
22. Consist As applied, the term means:
Train: The coupled cars forming a complete train.
Engine or Lite Locomotive: A single Locomotive or coupled Locomotive attached
