Showing 391–400 of 419 questions
Q.391
Medium
Technical Knowledge (NTPC)
What is the function of a turntable in a railway depot?
A
To measure train weight
B
To rotate locomotives for servicing and direction change
C
To test brake systems
D
To clean train engines
Correct Answer:
B. To rotate locomotives for servicing and direction change
Explanation:
A turntable is a rotating platform used in railway depots to turn locomotives around and position them for maintenance and service.
Q.392
Medium
Technical Knowledge (NTPC)
If the ratio of freight trains to passenger trains on a route is 3:5, and there are 45 passenger trains, how many freight trains are there?
A
25 trains
B
27 trains
C
30 trains
D
35 trains
Correct Answer:
B. 27 trains
Explanation:
If freight:passenger = 3:5 and passenger trains = 45, then freight trains = (3/5) × 45 = 27 trains
Q.393
Easy
Technical Knowledge (NTPC)
What is the gauge of the Indian railway network that covers the majority of the system?
A
Broad gauge (1676 mm)
B
Meter gauge (1000 mm)
C
Narrow gauge (762 mm)
D
Standard gauge (1435 mm)
Correct Answer:
A. Broad gauge (1676 mm)
Explanation:
Indian railways predominantly use broad gauge (1676 mm) which covers approximately 43,000 km of the total network.
Q.394
Easy
Technical Knowledge (NTPC)
Which of the following is the primary function of a buffer in railway couplings?
A
To increase train speed
B
To absorb shocks and reduce impact between coaches
C
To facilitate uncoupling of trains
D
To improve brake efficiency
Correct Answer:
B. To absorb shocks and reduce impact between coaches
Explanation:
Buffers are spring-loaded devices that absorb shocks and minimize damage during coupling and uncoupling of railway carriages.
Q.395
Medium
Technical Knowledge (NTPC)
What is the minimum braking distance required for a train traveling at 100 km/h according to Indian Railways standards?
A
200 meters
B
300 meters
C
500 meters
D
1000 meters
Correct Answer:
C. 500 meters
Explanation:
Indian Railways specify a minimum braking distance of approximately 500 meters for trains traveling at 100 km/h under normal conditions.
Q.396
Easy
Technical Knowledge (NTPC)
In railway terminology, what does 'rake' refer to?
A
A tool used for track maintenance
B
A complete set of coaches or wagons coupled together
C
The slope of the railway track
D
The angle between rails
Correct Answer:
B. A complete set of coaches or wagons coupled together
Explanation:
A 'rake' is a complete formation of railway coaches or wagons that are coupled together to form a train unit.
Q.397
Medium
Technical Knowledge (NTPC)
What is the primary advantage of AC (alternating current) traction over DC (direct current) in electric trains?
A
Lower initial cost
B
Better efficiency and reduced weight of overhead equipment
C
Easier maintenance
D
Higher safety standards
Correct Answer:
B. Better efficiency and reduced weight of overhead equipment
Explanation:
AC traction systems are more efficient and require lighter overhead equipment compared to DC systems, making them economical for long-distance routes.
Q.398
Easy
Technical Knowledge (NTPC)
Which component in a diesel locomotive is responsible for converting chemical energy into mechanical energy?
A
Alternator
B
Transmission system
C
Diesel engine
D
Traction motor
Correct Answer:
C. Diesel engine
Explanation:
The diesel engine is the primary component that converts the chemical energy stored in diesel fuel into mechanical energy through combustion.
Q.399
Easy
Technical Knowledge (NTPC)
What is the role of 'ballast' in railway track construction?
A
To provide electrical conductivity
B
To support the sleepers and distribute load evenly
C
To prevent rust formation on rails
D
To measure train speed
Correct Answer:
B. To support the sleepers and distribute load evenly
Explanation:
Ballast, typically made of crushed stone or gravel, supports the sleepers and distributes the train's weight evenly to the subgrade.
Q.400
Medium
Technical Knowledge (NTPC)
In the 2024 Indian Railways modernization, what is the primary objective of the 'Gati Shakti' program?
A
To increase train speed exclusively
B
To develop integrated transport infrastructure for faster movement of goods and passengers
C
To reduce railway employee strength
D
To eliminate all narrow gauge lines
Correct Answer:
B. To develop integrated transport infrastructure for faster movement of goods and passengers
Explanation:
Gati Shakti is a national master plan to develop integrated multimodal infrastructure for economic growth and faster movement of goods and passengers.
