Showing 31–40 of 100 questions
in Technical Knowledge (NTPC)
Q.31
Easy
Technical Knowledge (NTPC)
Which signal aspect indicates 'Proceed with caution'?
A
Red light
B
Yellow light
C
Green light
D
White light
Correct Answer:
B. Yellow light
Explanation:
Yellow light (or amber signal) indicates caution or proceed with reduced speed in railway signaling systems.
Q.32
Medium
Technical Knowledge (NTPC)
What does EMU stand for in railway terminology?
A
Electric Multiple Unit
B
Electrical Maintenance Unit
C
Engine Management Unit
D
Emergency Mobile Unit
Correct Answer:
A. Electric Multiple Unit
Explanation:
EMU stands for Electric Multiple Unit, which refers to electric trains that have distributed motor units in multiple cars.
Q.33
Easy
Technical Knowledge (NTPC)
If the ratio of express trains to local trains is 3:5, and there are 24 express trains, how many local trains are there?
Explanation:
If 3:5 is the ratio and express trains = 24, then 3 units = 24, so 1 unit = 8. Local trains = 5 units = 5×8 = 40
Q.34
Medium
Technical Knowledge (NTPC)
What is the purpose of a railway buffer or bumper?
A
To increase train speed
B
To absorb impact and prevent damage during coupling
C
To measure train weight
D
To control temperature
Correct Answer:
B. To absorb impact and prevent damage during coupling
Explanation:
Railway buffers are elastic devices that absorb impact and shock during coupling and uncoupling of coaches.
Q.35
Hard
Technical Knowledge (NTPC)
What is the minimum turning radius for broad gauge railway tracks?
A
200 meters
B
300 meters
C
400 meters
D
500 meters
Correct Answer:
B. 300 meters
Explanation:
The minimum turning radius for broad gauge tracks is approximately 300 meters to ensure safe operations.
Q.36
Hard
Technical Knowledge (NTPC)
Which safety device automatically applies brakes if a train exceeds safe speed on curves?
A
Speed Governor
B
Overspeed Protection System (OPS)
C
Automatic Train Protection (ATP)
D
Vigilance Device
Correct Answer:
C. Automatic Train Protection (ATP)
Explanation:
Automatic Train Protection (ATP) is a safety system that automatically applies brakes if a train exceeds safe speed limits on curves or approaches.
Q.37
Easy
Technical Knowledge (NTPC)
What is the gauge measurement for Meter Gauge (MG) railways in India?
A
1000 mm
B
1676 mm
C
762 mm
D
1219 mm
Correct Answer:
A. 1000 mm
Explanation:
Meter Gauge has a standard width of 1000 mm. Broad Gauge is 1676 mm, Narrow Gauge is 762 mm, and 1219 mm is rarely used.
Q.38
Easy
Technical Knowledge (NTPC)
What does DEMU stand for in railway terminology?
A
Diesel Electric Multiple Unit
B
Diesel Engine Mobile Unit
C
Diesel Electric Motorized Unit
D
Direct Electric Multiple Unit
Correct Answer:
A. Diesel Electric Multiple Unit
Explanation:
DEMU stands for Diesel Electric Multiple Unit, used for short-distance passenger transport.
Q.39
Easy
Technical Knowledge (NTPC)
What is the maximum speed limit for Broad Gauge trains in general sections?
A
100 km/h
B
110 km/h
C
120 km/h
D
160 km/h
Correct Answer:
B. 110 km/h
Explanation:
The standard maximum speed for Broad Gauge trains is 110 km/h, though high-speed sections allow up to 160 km/h.
Q.40
Medium
Technical Knowledge (NTPC)
Which of the following is NOT a type of railway station classification in India?
A
Category A
B
Category F
C
Category H
D
Category E
Correct Answer:
C. Category H
Explanation:
Railway stations in India are classified from Category A to F. Category H does not exist in the classification system.
