These 75 MCQ questions cover the most important topics for Railway Recruitment Board (RRB) Group D and NTPC examinations 2026. Topics include General Science, Mathematics, General Awareness and Reasoning. Use Show Answer to check explanations. Practice unlimited unique MCQs daily at Vooo AI Education.
🔬 General Science (Q1–Q15)
1What is the chemical symbol for Iron?
Answer: B — Fe
The chemical symbol for Iron is Fe, derived from the Latin word "Ferrum".
The chemical symbol for Iron is Fe, derived from the Latin word "Ferrum".
2The unit of electric current is:
Answer: C — Ampere
The SI unit of electric current is Ampere (A). Volt measures voltage, Watt measures power, Ohm measures resistance.
The SI unit of electric current is Ampere (A). Volt measures voltage, Watt measures power, Ohm measures resistance.
3Which gas is used in electric bulbs?
Answer: B — Argon
Argon gas is filled in electric bulbs to prevent the tungsten filament from burning out. It is an inert gas.
Argon gas is filled in electric bulbs to prevent the tungsten filament from burning out. It is an inert gas.
4The human body has how many bones?
Answer: C — 206
An adult human body has 206 bones. Babies are born with around 270-300 bones which fuse as they grow.
An adult human body has 206 bones. Babies are born with around 270-300 bones which fuse as they grow.
5Which planet is known as the Red Planet?
Answer: B — Mars
Mars is called the Red Planet because its surface is covered with iron oxide (rust).
Mars is called the Red Planet because its surface is covered with iron oxide (rust).
6Sound travels fastest through:
Answer: C — Steel
Sound travels fastest through solids. In steel, sound travels at about 5,100 m/s compared to 343 m/s in air.
Sound travels fastest through solids. In steel, sound travels at about 5,100 m/s compared to 343 m/s in air.
7Photosynthesis occurs in which part of the plant?
Answer: C — Leaves
Photosynthesis occurs in leaves, in chloroplasts which contain chlorophyll that captures sunlight.
Photosynthesis occurs in leaves, in chloroplasts which contain chlorophyll that captures sunlight.
8What is the boiling point of water at sea level?
Answer: C — 100°C
Water boils at 100°C (212°F) at standard atmospheric pressure at sea level.
Water boils at 100°C (212°F) at standard atmospheric pressure at sea level.
9The nearest star to Earth (after the Sun) is:
Answer: A — Proxima Centauri
Proxima Centauri is the nearest star at about 4.24 light years away, part of the Alpha Centauri system.
Proxima Centauri is the nearest star at about 4.24 light years away, part of the Alpha Centauri system.
10Which blood group is the universal donor?
Answer: A — O negative
O negative is the universal donor. AB positive is the universal recipient.
O negative is the universal donor. AB positive is the universal recipient.
11The chemical formula of water is:
Answer: B — H₂O
Water is H₂O — two hydrogen atoms bonded to one oxygen atom. H₂O₂ is hydrogen peroxide.
Water is H₂O — two hydrogen atoms bonded to one oxygen atom. H₂O₂ is hydrogen peroxide.
12Which vitamin is produced when skin is exposed to sunlight?
Answer: D — Vitamin D
Vitamin D is synthesized in skin when exposed to UVB rays from sunlight. It is essential for calcium absorption.
Vitamin D is synthesized in skin when exposed to UVB rays from sunlight. It is essential for calcium absorption.
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Start Free Today →🔢 Mathematics (Q13–Q25)
13What is 15% of 240?
Answer: C — 36
15% of 240 = 0.15 × 240 = 36.
15% of 240 = 0.15 × 240 = 36.
14The square root of 1444 is:
Answer: C — 38
38 × 38 = 1444. So √1444 = 38.
38 × 38 = 1444. So √1444 = 38.
15A can do work in 10 days, B in 15 days. Together they finish in:
Answer: B — 6 days
Together = 1/10 + 1/15 = 1/6. So 6 days.
Together = 1/10 + 1/15 = 1/6. So 6 days.
16The perimeter of a square with side 9 cm is:
Answer: B — 36 cm
Perimeter = 4 × 9 = 36 cm.
Perimeter = 4 × 9 = 36 cm.
17What is the HCF of 36 and 48?
Answer: C — 12
HCF of 36 and 48 = 12.
HCF of 36 and 48 = 12.
18Simple interest on ₹5000 at 8% per annum for 3 years is:
Answer: C — ₹1200
SI = (5000 × 8 × 3)/100 = ₹1200.
SI = (5000 × 8 × 3)/100 = ₹1200.
🚂 Indian Railways GK (Q19–Q35)
19Indian Railways is under which ministry?
Answer: B — Ministry of Railways
Indian Railways is managed by the Ministry of Railways of the Government of India.
Indian Railways is managed by the Ministry of Railways of the Government of India.
20The first railway line in India was laid between:
Answer: A — Bombay to Thane
India's first railway opened on 16 April 1853 between Bori Bunder (Mumbai) and Thane, covering 34 km.
India's first railway opened on 16 April 1853 between Bori Bunder (Mumbai) and Thane, covering 34 km.
21How many railway zones are there in India?
Answer: C — 18
Indian Railways has 18 zones. The latest is South Coast Railway (SCoR) headquartered in Visakhapatnam.
Indian Railways has 18 zones. The latest is South Coast Railway (SCoR) headquartered in Visakhapatnam.
22Vande Bharat Express is which type of train?
Answer: B — Semi-high speed electric train
Vande Bharat Express is a semi-high speed, self-propelled electric train manufactured in India. It can reach 160 km/h.
Vande Bharat Express is a semi-high speed, self-propelled electric train manufactured in India. It can reach 160 km/h.
23Which is the longest railway platform in India?
Answer: B — Hubballi (Hubli)
Hubballi station in Karnataka has the longest platform in India at 1,505 metres.
Hubballi station in Karnataka has the longest platform in India at 1,505 metres.
24IRCTC stands for:
Answer: B — Indian Railway Catering and Tourism Corporation
IRCTC manages online ticketing, catering and tourism services for Indian Railways.
IRCTC manages online ticketing, catering and tourism services for Indian Railways.
25Diesel Locomotive Works (DLW) is located in:
Answer: C — Varanasi
DLW is in Varanasi, Uttar Pradesh. It manufactures diesel and electric locomotives for Indian Railways.
DLW is in Varanasi, Uttar Pradesh. It manufactures diesel and electric locomotives for Indian Railways.
26The Rajdhani Express was first introduced in which year?
Answer: A — 1969
The first Rajdhani Express ran between New Delhi and Howrah on 3 March 1969 — India's first superfast AC train.
The first Rajdhani Express ran between New Delhi and Howrah on 3 March 1969 — India's first superfast AC train.
27The Konkan Railway connects which two cities?
Answer: A — Roha to Mangaluru
Konkan Railway runs 741 km from Roha in Maharashtra to Mangaluru in Karnataka along the scenic Konkan coast.
Konkan Railway runs 741 km from Roha in Maharashtra to Mangaluru in Karnataka along the scenic Konkan coast.
28India's first bullet train is being built between which cities?
Answer: A — Mumbai and Ahmedabad
The Mumbai-Ahmedabad High Speed Rail Corridor is India's first bullet train project using Japanese Shinkansen technology.
The Mumbai-Ahmedabad High Speed Rail Corridor is India's first bullet train project using Japanese Shinkansen technology.
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