NS CONDUCTOR RULES ACTUAL EXAM QUESTIONS WITH
SOLUTIONS 2025 GRADED A+
✔✔Inspection verifying the release of the air brakes on each freight car during a Class I
brake test may be conducted by a "roll-by" inspection at a speed not to exceed: (NS-1
A-6)
A. 5 MPH
B. 10 MPH
C. 15 MPH
D. A roll by may not be performed - ✔✔B. 10 MPH
✔✔You are operating a freight train with a maximum authorized speed of 50 MPH when
all speed indicators on the controlling locomotive fail en route. At what speed may the
locomotive continue as the controlling locomotive to the nearest forward point where
repairs can be made, or next calendar day inspection, whichever comes first? *NS-1 L-
205)
A. Restricted Speed, not exceeding 20 MPH
B. Not exceeding 10 MPH below the maximum authorized speed
C. Half the maximum authorized speed
D. The locomotive may not continue as the controlling locomotive - ✔✔B. Not exceeding
10 MPH below the maximum authorized speed
✔✔Yard Limits are designated in the Timetable, and indicated by "Yard Limit" signs.
Which of the below signal indications require Restricted Speed within Yard Limits? (OR
93)
A. Approach
B. Medium Approach
C. Advance Approach
D. Clear
E. Both (a) and (b) - ✔✔E. Both (a) and (b)
,✔✔Which of the following examples constitutes an imperfectly displayed signal aspect
and what action is required? (OR 288)
A. A white light displayed where a colored light should be. Regard as the most
restrictive indication and report the condition to the Control Station.
B. A clear signal aspect displayed leading into a block occupied by a train. Proceed at
restricted speed.
C. A crossing gate broken or missing. Report the condition to the Control Station.
D. A stop signal aspect displayed after receiving a clear signal indication to enter the
previous block. Report the condition to the Control Station. - ✔✔A. A white light
displayed where a colored light should be. Regard as the most restrictive indication and
report the condition to the Control Station.
✔✔To establish working limits using Train Coordination, a roadway worker must
communicate with the Engineer, or Conductor if communication cannot be established
with the Engineer, in control of a train or locomotive holding exclusive authority to move
must determine:
-The train controlling locomotive number.
-The train or locomotive is visible to the roadway worker who is establishing working
limits.
-The train or locomotive is stopped.
-That further movements of the train or locomotive will be made only as permitted by the
roadway worker in charge of the working limits while the working limits remain in effect,
and-
The working limits are protected from other train and locomotive movements. (OR 741)
A. True
B. False - ✔✔A. True
✔✔A train being operated from other than the leading end on a main track may: (OR
217)
A. Operate at a speed not exceeding 30 MPH provided a qualified employee is
stationed at, on or ahead of the leading end and equipped with a whistle or horn and an
emergency brake valve.
B. Operate at track speed provided there are no intervening switches, derails, road
crossings, or movements within the limits of the same block.
, C. Operate at a speed not exceeding 30 MPH. - ✔✔A. Operate at a speed not
exceeding 30 MPH provided a qualified employee is stationed at, on or ahead of the
leading end and equipped with a whistle or horn and an emergency brake valve.
✔✔Yard job GS03 is setting over their industry cut at the West end of Atlanta Yard.
Yard job GS12 is ready to depart from the West end of Atlanta Yard Track #8. After the
crew members communicate and in compliance with shoving rules, Yard job GS03
safely shoves into Track #2. The GS03 Conductor is positioned on the lead at the Track
#2 switch. When can the GS03 Conductor align the Track #2 switch for the lead for
GS12s movement? (Operating Rules)
A. Once the movement clears the head block ties of the Track #2 switch.
B. Once the movement is clear of the frog in Track #2.
C. Once the movement is beyond the clearance points or 225 feet (4 1/2 car lengths) in
Track #2. - ✔✔C. Once the movement is beyond the clearance points or 225 feet (4 1/2
car lengths) in Track #2.
✔✔Referencing the below image and noting the type of equipment involved, at which
location(s) is it permissible to mount/dismount moving equipment? Note, the tank car
pictured below is NOT equipped with 2 vertical grab irons. (SGCR 1071)
A. Location 1 - Trailing end of the Tank
B. Location 2 - Front end of the Tank
C. Location 3 - Trailing end of the Middle Car
D. Locations 4 and 5 - Front end of the Middle Car & Front end of the Engine
E. Locations 1 and 5 - Trailing end of the Tank & Front end of the Engine - ✔✔D.
Locations 4 and 5 - Front end of the Middle Car & Front end of the Engine
✔✔The following sign indicates that you are about to pass the designated distant signal
that governs the approach to an automatic interlocking. Trains or engines must proceed
prepared to stop approaching an automatic interlocking-railroad crossing at grade when:
(SIGN: "Automatic Interlocking Ahead, Rule 280 Applies")
-Stopped while approaching or after passing the designated distant signal.
-Moving less than ______ MPH approaching or after passing the designated distant
signal. (OR 280)
A. 10
SOLUTIONS 2025 GRADED A+
✔✔Inspection verifying the release of the air brakes on each freight car during a Class I
brake test may be conducted by a "roll-by" inspection at a speed not to exceed: (NS-1
A-6)
A. 5 MPH
B. 10 MPH
C. 15 MPH
D. A roll by may not be performed - ✔✔B. 10 MPH
✔✔You are operating a freight train with a maximum authorized speed of 50 MPH when
all speed indicators on the controlling locomotive fail en route. At what speed may the
locomotive continue as the controlling locomotive to the nearest forward point where
repairs can be made, or next calendar day inspection, whichever comes first? *NS-1 L-
205)
A. Restricted Speed, not exceeding 20 MPH
B. Not exceeding 10 MPH below the maximum authorized speed
C. Half the maximum authorized speed
D. The locomotive may not continue as the controlling locomotive - ✔✔B. Not exceeding
10 MPH below the maximum authorized speed
✔✔Yard Limits are designated in the Timetable, and indicated by "Yard Limit" signs.
Which of the below signal indications require Restricted Speed within Yard Limits? (OR
93)
A. Approach
B. Medium Approach
C. Advance Approach
D. Clear
E. Both (a) and (b) - ✔✔E. Both (a) and (b)
,✔✔Which of the following examples constitutes an imperfectly displayed signal aspect
and what action is required? (OR 288)
A. A white light displayed where a colored light should be. Regard as the most
restrictive indication and report the condition to the Control Station.
B. A clear signal aspect displayed leading into a block occupied by a train. Proceed at
restricted speed.
C. A crossing gate broken or missing. Report the condition to the Control Station.
D. A stop signal aspect displayed after receiving a clear signal indication to enter the
previous block. Report the condition to the Control Station. - ✔✔A. A white light
displayed where a colored light should be. Regard as the most restrictive indication and
report the condition to the Control Station.
✔✔To establish working limits using Train Coordination, a roadway worker must
communicate with the Engineer, or Conductor if communication cannot be established
with the Engineer, in control of a train or locomotive holding exclusive authority to move
must determine:
-The train controlling locomotive number.
-The train or locomotive is visible to the roadway worker who is establishing working
limits.
-The train or locomotive is stopped.
-That further movements of the train or locomotive will be made only as permitted by the
roadway worker in charge of the working limits while the working limits remain in effect,
and-
The working limits are protected from other train and locomotive movements. (OR 741)
A. True
B. False - ✔✔A. True
✔✔A train being operated from other than the leading end on a main track may: (OR
217)
A. Operate at a speed not exceeding 30 MPH provided a qualified employee is
stationed at, on or ahead of the leading end and equipped with a whistle or horn and an
emergency brake valve.
B. Operate at track speed provided there are no intervening switches, derails, road
crossings, or movements within the limits of the same block.
, C. Operate at a speed not exceeding 30 MPH. - ✔✔A. Operate at a speed not
exceeding 30 MPH provided a qualified employee is stationed at, on or ahead of the
leading end and equipped with a whistle or horn and an emergency brake valve.
✔✔Yard job GS03 is setting over their industry cut at the West end of Atlanta Yard.
Yard job GS12 is ready to depart from the West end of Atlanta Yard Track #8. After the
crew members communicate and in compliance with shoving rules, Yard job GS03
safely shoves into Track #2. The GS03 Conductor is positioned on the lead at the Track
#2 switch. When can the GS03 Conductor align the Track #2 switch for the lead for
GS12s movement? (Operating Rules)
A. Once the movement clears the head block ties of the Track #2 switch.
B. Once the movement is clear of the frog in Track #2.
C. Once the movement is beyond the clearance points or 225 feet (4 1/2 car lengths) in
Track #2. - ✔✔C. Once the movement is beyond the clearance points or 225 feet (4 1/2
car lengths) in Track #2.
✔✔Referencing the below image and noting the type of equipment involved, at which
location(s) is it permissible to mount/dismount moving equipment? Note, the tank car
pictured below is NOT equipped with 2 vertical grab irons. (SGCR 1071)
A. Location 1 - Trailing end of the Tank
B. Location 2 - Front end of the Tank
C. Location 3 - Trailing end of the Middle Car
D. Locations 4 and 5 - Front end of the Middle Car & Front end of the Engine
E. Locations 1 and 5 - Trailing end of the Tank & Front end of the Engine - ✔✔D.
Locations 4 and 5 - Front end of the Middle Car & Front end of the Engine
✔✔The following sign indicates that you are about to pass the designated distant signal
that governs the approach to an automatic interlocking. Trains or engines must proceed
prepared to stop approaching an automatic interlocking-railroad crossing at grade when:
(SIGN: "Automatic Interlocking Ahead, Rule 280 Applies")
-Stopped while approaching or after passing the designated distant signal.
-Moving less than ______ MPH approaching or after passing the designated distant
signal. (OR 280)
A. 10
