Showing 1–10 of 51 questions
in Technical Knowledge (NTPC)
Q.1
Medium
Technical Knowledge (NTPC)
What is the maximum speed limit for passenger trains on Indian Railways?
A
90 km/h
B
110 km/h
C
130 km/h
D
160 km/h
Correct Answer:
D. 160 km/h
Explanation:
Modern passenger trains on Indian Railways can operate at speeds up to 160 km/h on dedicated corridors.
Q.2
Medium
Technical Knowledge (NTPC)
In 2024, how many railway zones are there in Indian Railways?
A
16 zones
B
18 zones
C
20 zones
D
22 zones
Correct Answer:
B. 18 zones
Explanation:
As of 2024, there are 18 railway zones in Indian Railways after recent reorganization.
Q.3
Medium
Technical Knowledge (NTPC)
What is the primary function of a railway buffer?
A
To increase train speed
B
To absorb shocks and vibrations between coaches
C
To regulate electrical current
D
To supply water to engines
Correct Answer:
B. To absorb shocks and vibrations between coaches
Explanation:
Railway buffers (couplers) absorb and dissipate shock energy, protecting coaches from damage during coupling/decoupling.
Q.4
Medium
Technical Knowledge (NTPC)
Which type of braking system is primarily used in Indian Railways?
A
Vacuum braking system
B
Air braking system (Westinghouse)
C
Hydraulic braking system
D
Electromagnetic braking system
Correct Answer:
B. Air braking system (Westinghouse)
Explanation:
Indian Railways predominantly use the Westinghouse air braking system for freight and passenger trains.
Q.5
Medium
Technical Knowledge (NTPC)
What is the purpose of a railway siding?
A
To increase main track capacity
B
To allow trains to wait or be stored temporarily
C
To reduce track maintenance costs
D
To increase train speed
Correct Answer:
B. To allow trains to wait or be stored temporarily
Explanation:
Sidings are branch tracks where trains can be parked, waiting, or loaded/unloaded without blocking main lines.
Q.6
Medium
Technical Knowledge (NTPC)
Which railway station in India is the largest by platforms?
A
Howrah Station, Kolkata
B
Chhatrapati Shivaji Terminus, Mumbai
C
Grand Central Terminal, Delhi
D
Lucknow Central
Correct Answer:
A. Howrah Station, Kolkata
Explanation:
Howrah Station in Kolkata has the maximum number of platforms (23 platforms) among Indian railway stations.
Q.7
Medium
Technical Knowledge (NTPC)
What does OHE stand for in railway terminology?
A
Overhead Equipment
B
Overhead Electrical
C
Overhead Expressway
D
Overhead Extension
Correct Answer:
B. Overhead Electrical
Explanation:
OHE (Overhead Electrical) refers to the electrical lines and equipment used to supply power to electric trains.
Q.8
Medium
Technical Knowledge (NTPC)
What percentage increase in speed is achieved if a train increases from 80 km/h to 100 km/h?
A
20%
B
22.5%
C
25%
D
27.5%
Explanation:
Percentage increase = (100-80)/80 × 100 = 20/80 × 100 = 25%
Q.9
Medium
Technical Knowledge (NTPC)
In railway signaling, what does the acronym IRSS stand for?
A
Indian Railway Safety System
B
Integrated Railway Signal System
C
Indian Railway Signaling Standards
D
Integrated Rail Signal Service
Correct Answer:
B. Integrated Railway Signal System
Explanation:
IRSS refers to Integrated Railway Signal System used in modern Indian Railways for safe train operations.
Q.10
Medium
Technical Knowledge (NTPC)
Which of the following is NOT a type of railway crossing?
A
Level crossing
B
Grade separation
C
Diagonal crossing
D
Overhead crossing
Correct Answer:
D. Overhead crossing
Explanation:
Railway crossings include level crossings, grade separations, and diagonal crossings. Overhead crossing is not a standard railway crossing type.
