Who was the first Chief of Defence Staff (CDS) of India?
A. General Manoj Mukund Naravane
B. General Bipin Rawat
C. General V. K. Singh
D. General Dalbir Singh Suhag
Correct Answer: B General Bipin Rawat was appointed as the first Chief of Defence Staff of India on 1 January 2020. The CDS is the highest-ranking military officer and heads the Department of Military Affairs.
Q2. Mathematics
What is the HCF of 36, 48 and 60?
A. 6
B. 8
C. 12
D. 24
Correct Answer: C Factors of 36: 2² × 3², 48: 2⁴ × 3, 60: 2² × 3 × 5. Common factors: 2² × 3 = 12. Hence HCF = 12.
Q3. Science
Which of the following is the SI unit of electric current?
A. Volt
B. Ohm
C. Watt
D. Ampere
Correct Answer: D The SI unit of electric current is the ampere (A). It measures the flow of electric charge through a conductor per unit time.
Q4. Reasoning
Find the odd one out: 4, 9, 16, 25, 36, 49, 56
A. 36
B. 49
C. 56
D. 25
Correct Answer: C All numbers except 56 are perfect squares: 4=2², 9=3², 16=4², 25=5², 36=6², 49=7². 56 is not a perfect square.
Q5. General Knowledge
The Doctrine of Lapse was introduced by which Governor-General of India?
A. Warren Hastings
B. Lord Wellesley
C. Lord Dalhousie
D. Lord Curzon
Correct Answer: C Lord Dalhousie introduced the Doctrine of Lapse (1848-1856), under which princely states without a direct male heir would be annexed by the British East India Company.
Q6. Mathematics
A train 300 metres long passes a platform 200 metres long in 50 seconds. What is the speed of the train in km/h?
A. 18 km/h
B. 36 km/h
C. 54 km/h
D. 72 km/h
Correct Answer: B Total distance = 300 + 200 = 500 m. Time = 50 s. Speed = 500/50 = 10 m/s = 10 × 18/5 = 36 km/h.
Q7. Science
What is the chemical symbol for gold?
A. Go
B. Gd
C. Au
D. Ag
Correct Answer: C Gold has the chemical symbol Au, derived from the Latin word "aurum" meaning shining dawn.
Q8. Reasoning
If 'MANGO' is written as 'NZOHP' in a code, how is 'APPLE' written in that code?
A. BQQKF
B. BOQKF
C. ZOOKD
D. BQQNF
Correct Answer: B Pattern: each letter alternates +1, -1 starting with +1. M→N (+1), A→Z (-1), N→O (+1), G→F (-1), O→P (+1). For APPLE: A→B (+1), P→O (-1), P→Q (+1), L→K (-1), E→F (+1) = BOQKF.
Q9. General Knowledge
Which Indian state has the longest coastline?
A. Kerala
B. Tamil Nadu
C. Gujarat
D. Maharashtra
Correct Answer: C Gujarat has the longest coastline in India at approximately 1,600 km, followed by Tamil Nadu and Andhra Pradesh.
Q10. Mathematics
If a man earns ₹450 per day, how much will he earn in 4 weeks (6 working days per week)?
A. ₹8,400
B. ₹9,600
C. ₹10,800
D. ₹12,600
Correct Answer: C Total working days = 4 × 6 = 24 days. Total earnings = 450 × 24 = ₹10,800.
Q11. Science
Which vitamin is essential for blood clotting?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Correct Answer: D Vitamin K is essential for the synthesis of prothrombin and other clotting factors in the liver, necessary for blood coagulation.
Q12. Reasoning
In a certain code, '123' means 'hot and cold', '256' means 'cold and dry', and '137' means 'hot and humid'. What digit represents 'dry'?
A. 2
B. 5
C. 6
D. 7
Correct Answer: B From statements: 'and' is common in all three. 'hot' appears in statement 1 and 3: common code is 1. 'cold' appears in 1 and 2: common code is 2. Statement 2: 256 = 'cold and dry'. We know cold=2, and=3, so dry=5.
Q13. General Knowledge
The famous 'Kumbh Mela' is held at which of the following river banks?
A. Ganga only
B. Yamuna only
C. Godavari only
D. Ganga, Yamuna, and Godavari
Correct Answer: D Kumbh Mela is held at four locations: Prayagraj (Ganga-Yamuna-Saraswati confluence), Haridwar (Ganga), Ujjain (Shipra), and Nashik (Godavari).
Q14. Mathematics
What is 15% of 240?
A. 24
B. 30
C. 36
D. 48
Correct Answer: C 15% of 240 = (15/100) × 240 = 0.15 × 240 = 36.
Q15. Science
Which planet is known as the 'Red Planet'?
A. Venus
B. Mars
C. Jupiter
D. Saturn
Correct Answer: B Mars is called the Red Planet due to its reddish appearance caused by iron oxide (rust) on its surface.
Q16. Reasoning
A is the father of B. C is the sister of A. D is the son of C. How is D related to B?
A. Brother
B. Cousin
C. Nephew
D. Uncle
Correct Answer: B A is father of B. C is sister of A, so C is aunt of B. D is son of C, so D is cousin of B.
Q17. General Knowledge
The headquarters of the International Monetary Fund (IMF) is located in which city?
A. Washington, D.C.
B. New York
C. Geneva
D. London
Correct Answer: A The IMF is headquartered in Washington, D.C., USA. It was established in 1944 at the Bretton Woods Conference.
Q18. Mathematics
If a : b = 2 : 3 and b : c = 4 : 5, find a : c.
A. 2 : 5
B. 8 : 15
C. 3 : 4
D. 4 : 5
Correct Answer: B a/b = 2/3, b/c = 4/5. Multiply: (a/b) × (b/c) = a/c = (2/3) × (4/5) = 8/15. So a : c = 8 : 15.
Q19. Science
What is the pH value of pure water at 25°C?
A. 6
B. 7
C. 8
D. 9
Correct Answer: B Pure water has a pH of 7 at 25°C, meaning it is neutral. The concentration of H⁺ and OH⁻ ions are equal (10⁻⁷ M each).
Q20. Reasoning
Complete the series: 21, 27, 33, 39, ?
A. 42
B. 44
C. 45
D. 47
Correct Answer: C The series increases by 6 each time: 21+6=27, 27+6=33, 33+6=39, 39+6=45.
Q21. General Knowledge
Which is the largest desert in the world?
A. Gobi Desert
B. Sahara Desert
C. Kalahari Desert
D. Antarctic Desert
Correct Answer: D The Antarctic Desert is the largest desert in the world, covering approximately 14 million km². The Sahara is the largest hot desert.
Which gas is responsible for the greenhouse effect?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Correct Answer: C Carbon dioxide (CO₂) is a major greenhouse gas that traps heat in the Earth's atmosphere, contributing to global warming. Other greenhouse gases include methane, water vapor, and nitrous oxide.
Q24. Reasoning
If LIGHT is coded as 12-9-7-8-20, what is the code for SOUND?
A. 19-15-21-14-4
B. 19-15-20-13-4
C. 18-15-21-14-4
D. 19-14-21-14-4
Correct Answer: A Each letter is replaced by its position in the alphabet: L=12, I=9, G=7, H=8, T=20. Similarly, S=19, O=15, U=21, N=14, D=4. Code = 19-15-21-14-4.
Q25. General Knowledge
Which constitutional amendment reduced the voting age from 21 to 18?
A. 52nd Amendment
B. 56th Amendment
C. 61st Amendment
D. 73rd Amendment
Correct Answer: C The 61st Constitutional Amendment Act, 1988, reduced the voting age from 21 to 18 years for elections to the Lok Sabha and state legislative assemblies.
Q26. Mathematics
The average of 5 numbers is 20. If one number is removed, the average becomes 18. What is the removed number?
A. 24
B. 26
C. 28
D. 30
Correct Answer: C Sum of 5 numbers = 5 × 20 = 100. Sum of 4 numbers = 4 × 18 = 72. Removed number = 100 - 72 = 28.
Q27. Science
Which part of the human brain is responsible for balance and coordination?
A. Cerebrum
B. Cerebellum
C. Medulla oblongata
D. Hypothalamus
Correct Answer: B The cerebellum controls balance, coordination of movements, and fine motor skills. It is located at the back of the brain below the cerebrum.
Q28. Reasoning
How many triangles are there in the figure formed by drawing all diagonals of a pentagon?
A. 25
B. 30
C. 35
D. 40
Correct Answer: C A pentagon has 5 vertices. Drawing all diagonals creates 35 triangles in total. This includes triangles formed by vertices and intersection points of diagonals.
Q29. General Knowledge
Who is known as the 'Father of the Indian Constitution'?
A. Mahatma Gandhi
B. Jawaharlal Nehru
C. B. R. Ambedkar
D. Sardar Vallabhbhai Patel
Correct Answer: C Dr. B. R. Ambedkar was the Chairman of the Drafting Committee of the Indian Constitution. He is widely regarded as the Father of the Indian Constitution for his pivotal role in its drafting.
Q30. Mathematics
A shopkeeper gives a 10% discount on the marked price of ₹500. What is the selling price?
A. ₹400
B. ₹425
C. ₹450
D. ₹475
Correct Answer: C Discount = 10% of 500 = ₹50. Selling price = 500 - 50 = ₹450.
Q31. Science
Which organ in the human body produces insulin?
A. Liver
B. Pancreas
C. Kidney
D. Stomach
Correct Answer: B The pancreas produces insulin in the beta cells of the Islets of Langerhans. Insulin regulates blood glucose levels by allowing cells to absorb glucose.
Q32. Reasoning
Select the related word from the given options: Doctor : Hospital :: Teacher : ?
A. Students
B. Books
C. School
D. Class
Correct Answer: C A doctor works in a hospital. Similarly, a teacher works in a school.
Q33. General Knowledge
Which Indian state is known as the 'Land of Five Rivers'?
A. Uttar Pradesh
B. Punjab
C. Haryana
D. Rajasthan
Correct Answer: B Punjab means "land of five rivers" in Persian. The five rivers are Beas, Chenab, Jhelum, Ravi, and Sutlej.
Q34. Mathematics
If a number is increased by 20% and then decreased by 20%, what is the net change?
A. 4% increase
B. 4% decrease
C. 0% change
D. 2% decrease
Correct Answer: B Let number = 100. After 20% increase = 120. After 20% decrease = 120 - 24 = 96. Net change = 4% decrease.
Q35. Science
What is the speed of light in a vacuum?
A. 3 × 10⁶ m/s
B. 3 × 10⁸ m/s
C. 3 × 10¹⁰ m/s
D. 3 × 10⁹ m/s
Correct Answer: B The speed of light in a vacuum is 3 × 10⁸ m/s (approximately 299,792,458 m/s). It is the universal constant denoted by c.
Q36. Reasoning
In a row of students, Ravi is 12th from the left and 18th from the right. How many students are there in the row?
A. 28
B. 29
C. 30
D. 31
Correct Answer: B Total students = (Position from left + Position from right) - 1 = 12 + 18 - 1 = 29.
Q37. General Knowledge
Which of the following is a fundamental right in the Indian Constitution?
A. Right to Property
B. Right to Equality
C. Right to Work
D. Right to Information
Correct Answer: B Right to Equality (Articles 14-18) is a fundamental right under Part III of the Indian Constitution. Right to Property was removed as a fundamental right by the 44th Amendment.
Q38. Mathematics
Find the simple interest on ₹2,000 at 5% per annum for 3 years.
A. ₹200
B. ₹250
C. ₹300
D. ₹350
Correct Answer: C SI = (P × R × T)/100 = (2000 × 5 × 3)/100 = ₹300.
Q39. Science
Which type of energy is stored in a battery?
A. Kinetic energy
B. Thermal energy
C. Chemical energy
D. Nuclear energy
Correct Answer: C A battery stores chemical energy which is converted into electrical energy when connected to a circuit through electrochemical reactions.
Q40. Reasoning
If 'PINK' is coded as 'QJOL', what is 'BLUE' coded as?
A. CMVF
B. AKTD
C. COVG
D. BMVF
Correct Answer: A Each letter is shifted by +1: P→Q, I→J, N→O, K→L. Similarly, B→C, L→M, U→V, E→F. So BLUE → CMVF.
Q41. General Knowledge
Which country is the largest producer of tea in the world?
A. China
B. India
C. Kenya
D. Sri Lanka
Correct Answer: A China is the largest producer of tea in the world, followed by India. India is the largest consumer of tea globally.
Q42. Mathematics
A carpet 6 m long and 4 m wide costs ₹120 per square metre. What is the total cost?
A. ₹1,880
B. ₹2,400
C. ₹2,880
D. ₹3,200
Correct Answer: C Area = 6 × 4 = 24 m². Total cost = 24 × 120 = ₹2,880.
Q43. Science
What is the chemical formula of water?
A. HO
B. H₂O
C. H₂O₂
D. OH
Correct Answer: B Water has the chemical formula H₂O, consisting of two hydrogen atoms and one oxygen atom bonded covalently.
Q44. Reasoning
Which number will replace the question mark? 2, 6, 18, 54, ?
A. 108
B. 126
C. 162
D. 216
Correct Answer: C Each number is multiplied by 3: 2×3=6, 6×3=18, 18×3=54, 54×3=162.
Q45. General Knowledge
The highest civilian award of India is:
A. Bharat Ratna
B. Padma Vibhushan
C. Padma Bhushan
D. Padma Shri
Correct Answer: A Bharat Ratna is India's highest civilian award, instituted in 1954. It is awarded for exceptional service in any field of human endeavour.
Q46. Mathematics
If 3x + 7 = 22, what is the value of x?
A. 3
B. 4
C. 5
D. 6
Correct Answer: C 3x + 7 = 22 → 3x = 15 → x = 5.
Q47. Science
Which of the following is a non-renewable source of energy?
A. Solar energy
B. Wind energy
C. Coal
D. Hydroelectric energy
Correct Answer: C Coal is a non-renewable fossil fuel formed over millions of years. Solar, wind, and hydroelectric energy are renewable sources that can be replenished naturally.
Q48. Reasoning
In a class of 40 students, Anjali's rank is 15th from the top. What is her rank from the bottom?
A. 24
B. 25
C. 26
D. 27
Correct Answer: C Rank from bottom = Total students - Rank from top + 1 = 40 - 15 + 1 = 26.
Q49. General Knowledge
Who was the first woman Prime Minister of India?
A. Pratibha Patil
B. Indira Gandhi
C. Sushma Swaraj
D. Sonia Gandhi
Correct Answer: B Indira Gandhi was the first and only woman Prime Minister of India. She served from 1966 to 1977 and again from 1980 until her assassination in 1984.
Q50. Mathematics
The perimeter of a square is 48 cm. What is its area?
A. 96 cm²
B. 120 cm²
C. 144 cm²
D. 192 cm²
Correct Answer: C Perimeter = 4s, so side (s) = 48/4 = 12 cm. Area = s² = 144 cm².