Practice <strong>Railway RRB NTPC, Group D, ALP, Junior Engineer, Technician</strong> MCQs covering Mathematics, General Intelligence & Reasoning, General Science, and General Awareness. Aligned with the latest RRB exam syllabus.
Which of the following best describes the function of 'creep' in railway tracks?
Answer: A
Creep refers to the slow longitudinal movement of rails caused by train movements, thermal stress, and environmental factors.
Q.402Medium
What is the thickness of a standard Indian railway sleeper (tie)?
Answer: B
Standard Indian railway concrete sleepers are typically 200-250 mm thick to provide adequate support and distribution of train loads.
Q.403Easy
In a diesel-electric locomotive, what is the primary function of the 'traction motor'?
Answer: B
The traction motor converts electrical energy into mechanical energy to drive the locomotive wheels through the transmission system.
Q.404Medium
What does the term 'cant' or 'superelevation' mean in railway engineering?
Answer: B
Cant or superelevation is the banking of the outer rail on curves to counteract centrifugal force and allow trains to maintain higher speeds safely.
Q.405Hard
Which of the following is the correct sequence of air brake components in Indian Railways from pressure source to wheels?
Answer: A
The correct sequence is: Air compressor generates compressed air → stored in reservoir → regulated through control valve → transmitted to brake cylinders on wheels.
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Q.406Medium
What is the main advantage of using 'welded rails' in modern Indian Railways compared to 'jointed rails'?
Answer: B
Welded rails eliminate expansion joints, resulting in reduced noise, vibration, smoother passenger ride, and improved fuel efficiency of trains.
Q.407Hard
In the latest 2024-2025 Indian Railways safety statistics, which zone has shown maximum improvement in accident prevention?
Answer: C
Zones with modern automatic block signaling, level crossing gates, and CCTV monitoring systems have demonstrated maximum improvement in accident prevention in recent statistics.
Q.408Easy
Which of the following is the standard gauge used in Indian Railways?
Answer: A
Indian Railways primarily use 1676 mm broad gauge, which is the widest gauge in the world and allows for higher speeds and greater stability.
Q.409Easy
In a modern electric locomotive, what is the primary function of a pantograph?
Answer: A
A pantograph is a mechanical device that maintains contact with the overhead electrical wire to supply power to electric locomotives and trains.
Q.410Medium
What is the purpose of 'ballast' in railway track construction?
Answer: B
Ballast (crushed stone/gravel) distributes the load from sleepers and rails, provides proper drainage, and maintains correct track alignment and gauge.
Q.411Medium
Which Indian Railway zone has the longest route length as of 2024?
Answer: A
Central Railway operates one of the longest route networks among Indian Railway zones, covering major parts of Central India.
Q.412Medium
In automatic train protection systems, what does an 'aspect' in railway signaling indicate?
Answer: B
Signal aspects (green, yellow, red) communicate specific instructions to train drivers regarding speed and movement permissions at that location.
Q.413Medium
What is the primary reason for providing 'expansion joints' in railway tracks?
Answer: B
Expansion joints accommodate the linear expansion of rails in hot weather and contraction in cold weather, preventing rail buckling or breaking.
Q.414Hard
In the context of Indian Railway brake systems, what distinguishes an 'air brake' from a 'vacuum brake'?
Answer: A
Air brakes operate using compressed air to push brake pistons, while vacuum brakes use the pressure difference created by partial vacuum to apply braking force. Modern Indian Railways predominantly use air brake systems.
