Showing 1–10 of 15 questions
in Technical Knowledge (NTPC)
Q.1
Hard
Technical Knowledge (NTPC)
What is the standard rail section weight used in Indian Railways (in kg/m)?
A
45 kg/m
B
52 kg/m
C
60 kg/m
D
75 kg/m
Correct Answer:
B. 52 kg/m
Explanation:
52 kg/m is the standard rail section weight commonly used on Indian Railway routes.
Q.2
Hard
Technical Knowledge (NTPC)
Which organization is responsible for railway safety in India?
A
NITI Aayog
B
Office of Chief Safety Officer, Ministry of Railways
C
DGCA
D
National Highway Authority of India
Correct Answer:
B. Office of Chief Safety Officer, Ministry of Railways
Explanation:
The Office of Chief Safety Officer under the Ministry of Railways oversees railway safety in India.
Q.3
Hard
Technical Knowledge (NTPC)
What is the normal track curvature radius for broad gauge on Indian Railways?
A
500 meters minimum
B
800 meters minimum
C
1000 meters minimum
D
1200 meters minimum
Correct Answer:
B. 800 meters minimum
Explanation:
The minimum track curvature radius for broad gauge is approximately 800 meters on Indian Railways.
Q.4
Hard
Technical Knowledge (NTPC)
Which of the following is NOT a function of railway sleepers?
A
To transfer loads from rails to ballast
B
To maintain gauge distance between rails
C
To control train speed
D
To provide lateral stability to rails
Correct Answer:
C. To control train speed
Explanation:
Sleepers (ties) support rails, maintain gauge, and distribute loads; train speed control is managed by braking systems and track design, not sleepers.
Q.5
Hard
Technical Knowledge (NTPC)
Which railway zone is the largest in terms of route kilometers?
A
Central Railway
B
Northern Railway
C
Indian Railways (entire network)
D
Southern Railway
Correct Answer:
B. Northern Railway
Explanation:
The Northern Railway zone has the largest route length among all railway zones in India.
Q.6
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.7
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.8
Hard
Technical Knowledge (NTPC)
What does ACSM stand for in railway signaling?
A
Automatic Coupling and Safety Module
B
Axle Counter and Signal Management
C
Automatic Colour Signal Module
D
Axle Counting and Safety Monitoring
Correct Answer:
D. Axle Counting and Safety Monitoring
Explanation:
ACSM (Axle Counting and Safety Monitoring) is a modern railway safety system for train detection.
Q.9
Hard
Technical Knowledge (NTPC)
What does SCADA stand for in railway operations?
A
Supervisory Control and Data Acquisition
B
Signal Control and Dispatch Automation
C
Station Command and Drive Alerting
D
Speed Control and Distance Anticipation
Correct Answer:
A. Supervisory Control and Data Acquisition
Explanation:
SCADA (Supervisory Control and Data Acquisition) is a system for monitoring and controlling railway infrastructure remotely.
Q.10
Hard
Technical Knowledge (NTPC)
What is the purpose of a vacuum brake system in trains?
A
To increase train speed
B
To create air pressure for cooling
C
To apply brakes using vacuum pressure differential
D
To prevent wheel skidding
Correct Answer:
C. To apply brakes using vacuum pressure differential
Explanation:
A vacuum brake system applies brakes by creating a pressure difference between the brake cylinder and atmosphere.
