1. A train accelerates from rest to 72 km/h in 10 seconds. What is its acceleration?

• A. 1 m/s²
• B. 2 m/s² (Correct)
• C. 3 m/s²
• D. 4 m/s²

Explanation: 72 km/h = 20 m/s. Acceleration = (20 - 0) / 10 = 2 m/s².

2. The speed of sound is fastest in:

• A. Air
• B. Water
• C. Steel (Correct)
• D. Vacuum

Explanation: Sound travels fastest in solids. In steel it is approximately 5,100 m/s, vs ~340 m/s in air and ~1,500 m/s in water. It cannot travel in a vacuum.

3. When resistance is doubled in a circuit with constant voltage, the current:

• A. Doubles
• B. Halves (Correct)
• C. Remains the same
• D. Becomes zero

Explanation: By Ohm's law, I = V/R. If R doubles and V is constant, I halves.

4. A concave mirror is used in:

• A. Rear-view mirrors of vehicles
• B. Search lights and torches (Correct)
• C. Side mirrors
• D. Spectacle lenses

Explanation: Concave mirrors converge light and are used in search lights, headlights, and solar cookers. Convex mirrors are used as rear-view mirrors.

5. The process of converting a liquid into vapour below its boiling point is called:

• A. Condensation
• B. Evaporation (Correct)
• C. Sublimation
• D. Vaporisation

Explanation: Evaporation is the process of a liquid converting to vapour at any temperature below its boiling point from the surface.

6. Rust is formed when iron reacts with:

• A. Oxygen only
• B. Water only
• C. Both oxygen and water (moisture) (Correct)
• D. Nitrogen

Explanation: Rusting (iron oxide formation) requires both oxygen and moisture. In the absence of either, iron does not rust.

7. The pH of pure water at 25°C is:

• A. 0
• B. 7 (Correct)
• C. 14
• D. 5

Explanation: Pure water is neutral with a pH of exactly 7 at 25°C. pH 7 is basic.

8. Which organ in the human body produces insulin?

• A. Liver
• B. Kidney
• C. Pancreas (Correct)
• D. Stomach

Explanation: Insulin is produced by the beta cells of the islets of Langerhans in the pancreas. Insulin regulates blood sugar levels.

9. Deficiency of Vitamin C causes:

• A. Rickets
• B. Night Blindness
• C. Scurvy (Correct)
• D. Beri-beri

Explanation: Vitamin C deficiency causes scurvy (bleeding gums, weak immunity). Rickets = Vitamin D; Night Blindness = Vitamin A; Beri-beri = Vitamin B1.

10. Malaria is caused by:

• A. Bacteria
• B. Virus
• C. Protozoa (Plasmodium) (Correct)
• D. Fungi

Explanation: Malaria is caused by the Plasmodium parasite (a protozoan), transmitted through the bite of the female Anopheles mosquito.

11. What is the LCM of 12, 18, and 24?

• A. 36
• B. 48
• C. 72 (Correct)
• D. 96

Explanation: LCM(12,18,24): 12=2²×3, 18=2×3², 24=2³×3. LCM = 2³×3² = 72.

12. A railway ticket costs Rs. 600. It was increased by 15%. The new price is:

• A. Rs. 660
• B. Rs. 680
• C. Rs. 690 (Correct)
• D. Rs. 720

Explanation: 15% of 600 = 90. New price = 600 + 90 = Rs. 690.

13. A contractor buys materials for Rs. 4,000 and completes a job, charging the client Rs. 5,200. His profit percentage is:

• A. 25%
• B. 28%
• C. 30% (Correct)
• D. 32%

Explanation: Profit = 5200 - 4000 = 1200. Profit% = 1200/4000 × 100 = 30%.

14. A train 400m long crosses a bridge 600m long at 50 km/h. Time taken to cross the bridge completely is:

• A. 72 seconds (Correct)
• B. 80 seconds
• C. 90 seconds
• D. 100 seconds

Explanation: Total distance = 400 + 600 = 1000m. Speed = 50 km/h = 125/9 m/s. Time = 1000 ÷ (125/9) = 72 seconds.

15. The ratio of engine to coach weight of a train is 3:7. If total weight is 200 tonnes, the engine weighs:

• A. 40 tonnes
• B. 60 tonnes (Correct)
• C. 70 tonnes
• D. 80 tonnes

Explanation: Engine = 3/(3+7) × 200 = 3/10 × 200 = 60 tonnes.

16. A circular track has a radius of 35m. The circumference of the track (in metres) is:

• A. 110m
• B. 154m
• C. 176m
• D. 220m (Correct)

Explanation: Circumference = 2πr = 2 × 22/7 × 35 = 220m.

17. If 3x + 2y = 12 and x = 2, find y.

• A. 2
• B. 3 (Correct)
• C. 4
• D. 5

Explanation: 3(2) + 2y = 12 → 6 + 2y = 12 → 2y = 6 → y = 3.

18. Rs. 10,000 is invested at 6% per annum simple interest for 4 years. Total amount received is:

• A. Rs. 12,000
• B. Rs. 12,400 (Correct)
• C. Rs. 14,000
• D. Rs. 16,000

Explanation: SI = 10000 × 6 × 4 / 100 = Rs. 2,400. Amount = 10,000 + 2,400 = Rs. 12,400.

19. The mode of 3, 5, 7, 3, 9, 3, 11 is:

• A. 3 (Correct)
• B. 5
• C. 7
• D. 9

Explanation: Mode is the most frequently occurring value. 3 appears 3 times, more than any other value.

20. An isosceles triangle has a vertex angle of 40°. The base angles are each:

• A. 60°
• B. 65°
• C. 70° (Correct)
• D. 80°

Explanation: Sum of angles = 180°. Base angles = (180 - 40) / 2 = 70° each.

21. Railway Station is to Train as Airport is to:

• A. Bus
• B. Ship
• C. Airplane (Correct)
• D. Helicopter

Explanation: Railway Station is a terminal for trains; an Airport is a terminal for airplanes.

22. Find the missing number: 2, 5, 10, 17, 26, ?

• A. 35
• B. 36
• C. 37 (Correct)
• D. 38

Explanation: Differences are 3, 5, 7, 9, 11 (increasing by 2). 26 + 11 = 37.

23. If TRAIN is coded as USBJO, then ENGINE is coded as:

• A. FOHJOF (Correct)
• B. FOHKOF
• C. GPHJOF
• D. EOHIOF

Explanation: Each letter shifts one position forward. E→F, N→O, G→H, I→J, N→O, E→F = FOHJOF.

24. Find the odd one out: Locomotive, Bogie, Platform, Pantograph

• A. Locomotive
• B. Bogie
• C. Platform (Correct)
• D. Pantograph

Explanation: Locomotive, Bogie, and Pantograph are all parts of or associated with a train. Platform is a railway structure, not part of the train itself.

25. A train starts heading North, turns right after 10 km, then turns right again after 5 km, and finally turns left. In which direction is the train now heading?

• A. North
• B. South
• C. East (Correct)
• D. West

Explanation: Start North, right turn gives East, another right turn gives South, and a left turn from South gives East.

26. If '+' means '×', '×' means '-', '-' means '÷', '÷' means '+', then find: 8 + 4 × 2 - 4 ÷ 1 = ?

• A. 29
• B. 31
• C. 33 (Correct)
• D. 35

Explanation: Replacing: 8×4 - 2÷4 + 1 = 32 - 0.5 + 1 = 32.5 ≈ 33.

27. In a survey of 100 railway passengers: 60 travelled AC, 50 travelled Sleeper, 30 travelled both. How many travelled neither?

• A. 10
• B. 20 (Correct)
• C. 30
• D. 40

Explanation: AC only = 60, Sleeper only = 50, Both = 30. Using inclusion-exclusion: 60 + 50 - 30 = 80 travelled at least one. Neither = 100 - 80 = 20.

28. Statement: All station masters are railway employees. Conclusion: Some railway employees are station masters.

• A. Conclusion follows (Correct)
• B. Conclusion does not follow
• C. Insufficient data
• D. Both true and false

Explanation: If all station masters are railway employees, then some railway employees (those who are station masters) are station masters. The conclusion follows by conversion.

29. Find the next group: ACE, BDF, CEG, ?

• A. DFG
• B. DFH (Correct)
• C. EFH
• D. CFH

Explanation: Each group's starting letter increases by one: A→B→C→D. Pattern inside each group: consecutive letters skipping one. D, D+2=F, F+2=H.

30. When you see the time '3:00' in a mirror, what time does the mirror image show?

• A. 8:00
• B. 9:00 (Correct)
• C. 3:00
• D. 6:00

Explanation: In a mirror, 3:00 reflected horizontally reads as 9:00 (the hands are flipped left-right).

31. The first passenger railway in India ran between Bombay (Mumbai) and Thane in the year:

• A. 1847
• B. 1853 (Correct)
• C. 1863
• D. 1875

Explanation: India's first railway ran from Bori Bunder (Mumbai) to Thane on April 16, 1853, covering a distance of about 34 km.

32. The Indian Railways is divided into how many operational zones?

• A. 14
• B. 17
• C. 18 (Correct)
• D. 21

Explanation: Indian Railways has 18 operational railway zones, each headed by a General Manager.

33. Vande Bharat Express is also known as:

• A. Rajdhani Express
• B. Train 18 (Correct)
• C. Shatabdi Plus
• D. Gatiman Express

Explanation: Vande Bharat Express was internally named 'Train 18' during its development by ICF Chennai. It is India's first semi-high-speed train built in India.

34. Which river is known as the 'Sorrow of Bihar'?

• A. Ganga
• B. Yamuna
• C. Kosi (Correct)
• D. Son

Explanation: The Kosi river is called the 'Sorrow of Bihar' because of the devastating floods it causes every year due to its shifting course.

35. The Quit India Movement was launched in:

• A. 1940
• B. 1942 (Correct)
• C. 1943
• D. 1945

Explanation: The Quit India Movement was launched by Mahatma Gandhi on August 8, 1942, at the Bombay session of the All India Congress Committee.

36. The President of India is elected by:

• A. Lok Sabha members only
• B. All MPs and MLAs
• C. Elected members of both Houses of Parliament and State Legislative Assemblies (Correct)
• D. All citizens of India

Explanation: The President is elected by an electoral college comprising elected members of both Houses of Parliament and elected members of State Legislative Assemblies (and UTs with legislatures).

37. The device used to measure atmospheric pressure is:

• A. Thermometer
• B. Hydrometer
• C. Barometer (Correct)
• D. Speedometer

Explanation: A barometer measures atmospheric pressure. A thermometer measures temperature; a hydrometer measures liquid density; a speedometer measures speed.

38. The Kavach system in Indian Railways is:

• A. A reservation system
• B. An automatic train protection system (Correct)
• C. A high-speed rail project
• D. A ticketing mobile app

Explanation: Kavach (meaning 'armour') is an indigenous Automatic Train Protection (ATP) system developed to prevent train collisions automatically.

39. In which year did India win its first Cricket World Cup?

• A. 1975
• B. 1979
• C. 1983 (Correct)
• D. 1987

Explanation: India won its first ODI Cricket World Cup in 1983 under the captaincy of Kapil Dev, defeating the West Indies in the final at Lord's, London.

40. The Bharat Ratna is India's:

• A. Highest military honour
• B. Highest civilian honour (Correct)
• C. Sports award
• D. Literary award

Explanation: Bharat Ratna is India's highest civilian honour, awarded for exceptional service or performance of the highest order to the nation.