What message did the Chandrayaan-2 lunar orbiter send to Chandrayaan-3’s lander module when it established contact with it in August 2023?
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Correct answer: (C) “Welcome, buddy” When contact was made with the lander of Chandrayaan-3, the orbiter of Chandrayaan-2 sent the message ‘Welcome, buddy’. The older orbiter thus became a communication link for the new mission.
1 marks · 2023 · Set A
Question 52
Name the former President of China who crushed the pro-democracy movement in 1989.
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Correct answer: (B) Yang Shangkun During the pro-democracy movement of 1989 the President of China was Yang Shangkun (1988–1993), and martial law was declared over his signature. Jiang Zemin became President in 1993, after the movement. The Commission's final key gives (C) Jiang Zemin, but the question asks for the President, and in 1989 that office was Yang Shangkun's; option (B) is shown here for that reason.
1 marks · 2023 · Set A
Question 53
Who was elected for a second term as Ireland’s Prime Minister?
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Correct answer: (C) Leo Varadkar Leo Varadkar was elected Prime Minister (Taoiseach) of Ireland for a second term. Sanna Marin led Finland and Robert Abela Malta.
1 marks · 2023 · Set A
Question 54
The African Union was made a permanent member at the G-20 Summit held in India. Who is the Chairperson of the African Union?
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Correct answer: (A) Azali Assoumani The African Union was given permanent membership at the G20 summit in New Delhi in 2023; its chairman at the time was Azali Assoumani, President of the Comoros.
1 marks · 2023 · Set A
Question 55
Arrange the following physiographic units of India in ascending order by geographical area: 1. Central Highlands 2. Great Plains 3. Coastal Plains 4. Northern Mountains. Select the correct answer using the codes below.
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Correct answer: (A) 3, 1, 2, 4 Arranged in ascending order of area, that is from the smallest unit to the largest, the correct order among the options given is 3, 1, 2, 4.
1 marks · 2023 · Set A
Question 56
Arrange the following ranges from north to south: 1. Ladakh 2. Karakoram 3. Pir Panjal 4. Zanskar. Select the correct answer using the codes below.
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Correct answer: (B) 2, 1, 4, 3 From north to south the Himalayan ranges come in this order—Karakoram, Ladakh, Zanskar and then Pir Panjal. So the correct order is 2, 1, 4, 3.
1 marks · 2023 · Set A
Question 57
During the monsoon season in India, most cyclones originate
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Correct answer: (B) between 10° N and 15° N latitude Most cyclones of the Indian monsoon season form in the Bay of Bengal between 10° N and 15° N, where the sea temperature and the humidity are both favourable.
1 marks · 2023 · Set A
Question 58
Which of the following areas is not landslide-prone?
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Correct answer: (B) Eastern Ghats Landslides happen where the slopes are steep and the rain heavy—the Himalaya and the Western Ghats are such. The Eastern Ghats are lower, broken and of gentler slope, so the risk there is least.
1 marks · 2023 · Set A
Question 59
Which coast of India is most affected by violent tropical cyclones?
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Correct answer: (B) Coromandel The Coromandel coast faces the Bay of Bengal, where most tropical cyclones form, so it is the most affected. The Malabar and Konkan coasts lie towards the Arabian Sea, where cyclones are fewer.
1 marks · 2023 · Set A
Question 60
When running water cuts through clayey soils and makes deep channels, it leads to
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Correct answer: (A) gully erosion When running water cuts through clayey soil and makes deep channels it is called gully erosion, and such land is known as badland. In sheet erosion the top layer is washed away evenly instead.
1 marks · 2023 · Set A
Question 61
Which of the following receives heavy rainfall in October and November?
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Correct answer: (B) Coromandel Coast In October and November the monsoon retreats, and the winds that cross the Bay of Bengal bring heavy rain to the Coromandel coast, the eastern coast of Tamil Nadu. In the rest of India the rains are nearly over by then.
1 marks · 2023 · Set A
Question 62
Cultivation of fruits and vegetables is called
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Correct answer: (C) horticulture Growing fruits and vegetables is called horticulture. Growing flowers is floriculture, and farming in general is agriculture.
1 marks · 2023 · Set A
Question 63
Who provided leadership in the districts of Patna, Ara and Shahabad during the Revolt of 1857 in Bihar?
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Correct answer: (C) Kunwar Singh The revolt of 1857 in the Patna, Ara and Shahabad region of Bihar was led by Kunwar Singh of Jagdishpur. Raj Kumar Shukla belonged to the Champaran Satyagraha, a much later time.
1 marks · 2023 · Set A
Question 64
The Partition of Bengal was made effective on
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Correct answer: (C) 16 October 1905 The partition of Bengal announced by Lord Curzon came into effect on 16 October 1905. People marked that day by tying rakhis to show unity, and the Swadeshi Movement gathered force.
1 marks · 2023 · Set A
Question 65
The Quit India Resolution was adopted by the Congress in Bombay on
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Correct answer: (B) 8 August 1942 The Quit India resolution was passed by the Congress at the Gowalia Tank maidan in Bombay on 8 August 1942, and Gandhiji gave the call ‘Do or Die’. The senior leaders were arrested the next day, 9 August.
1 marks · 2023 · Set A
Question 66
The British ruled India for a long period due to the
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Correct answer: (C) policy of Divide and Rule The British followed a policy of divide and rule, widening differences of religion, caste and princely state so that Indians could not resist together. That was the main reason their rule lasted so long.
1 marks · 2023 · Set A
Question 67
On which of the following dates was Queen Victoria’s Proclamation issued?
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Correct answer: (C) 1 November 1858 After the revolt of 1857 Queen Victoria's Proclamation was read out by Lord Canning at Allahabad on 1 November 1858. With it the Company's rule ended and India passed to the British Crown.
1 marks · 2023 · Set A
Question 68
Which of the following statements is/are correct?
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Correct answer: (D) More than one of the above Raja Ram Mohan Roy was a pioneer of modern education, Swami Dayanand gave the call to return to the Vedas, and Vivekananda took part in the Parliament of World Religions at Chicago in 1893—more than one statement is correct.
1 marks · 2023 · Set A
Question 69
Who among the following became India’s unofficial Ambassador to England?
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Correct answer: (B) Dadabhai Naoroji Dadabhai Naoroji lived in England for many years, building opinion there in India's favour, and was even elected to the British Parliament—which is why he was called India's unofficial Ambassador.
1 marks · 2023 · Set A
Question 70
Who described the Government of India Act, 1935 as a ‘Charter of Slavery’?
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Correct answer: (E) None of the above It was Jawaharlal Nehru who called the Government of India Act, 1935 a ‘Charter of Slavery’. All three names given are wrong, so the answer is ‘None of the above’.
1 marks · 2023 · Set A
Question 71
If R is a relation on the set N of natural numbers defined by “nRm if n divides m”, then R is
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Correct answer: (A) reflexive and transitive but not symmetric
1 marks · 2023 · Set A
Question 72
Which of the following is not a set?
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Correct answer: (E) None of the above
1 marks · 2023 · Set A
Question 73
If A and B are two sets with A ∩ B = ∅, then
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Correct answer: (A) n(A ∪ B) = n(A) + n(B)
1 marks · 2023 · Set A
Question 74
If a set A has n elements, the number of binary relations defined on A is
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Correct answer: (C) 2^(n²)
1 marks · 2023 · Set A
Question 75
If A = {1, 2, 3} and B = {4, 5, 6}, which of the following is a bijective function?
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Correct answer: (D) More than one of the above
1 marks · 2023 · Set A
Question 76
If f : [0, 2π] → R is defined by f(x) = sin x, then f(x) is
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Correct answer: (E) None of the above
1 marks · 2023 · Set A
Question 77
Which of the following is a ‘statement’?
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Correct answer: (A) Roses are black
1 marks · 2023 · Set A
Question 78
If A and B are two sets, then
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Correct answer: (A) (A′ ∪ B′) = (B ∩ A)′
1 marks · 2023 · Set A
Question 79
If the nth term of an arithmetic progression is 3n − 4, then its 10th term is
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Correct answer: (B) 26
1 marks · 2023 · Set A
Question 80
If 1/(b + c), 1/(c + a) and 1/(a + b) are in arithmetic progression, then
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Correct answer: (B) a², b², c² are in arithmetic progression
1 marks · 2023 · Set A
Question 81
The first term of a geometric progression is 1. If the sum of the third and fifth terms is 90, the common ratio is
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Correct answer: (A) 3
1 marks · 2023 · Set A
Question 82
Which term of the sequence 2, 2√2, 4, … is 128?
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Correct answer: (C) 13th term
1 marks · 2023 · Set A
Question 83
If the arithmetic mean and geometric mean of the roots of a quadratic equation are 8 and 5, respectively, the quadratic equation is
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Correct answer: (B) x² − 16x + 25 = 0
1 marks · 2023 · Set A
Question 84
The multiplicative inverse of 2 − 3i is
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Correct answer: (C) 2/13 + 3i/13
1 marks · 2023 · Set A
Question 85
The value of i^(−35) is
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Correct answer: (A) i
1 marks · 2023 · Set A
Question 86
Which of the following statements is correct?
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Correct answer: (D) More than one of the above
1 marks · 2023 · Set A
Question 87
n² < 2^n is true for all natural numbers if
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Correct answer: (A) n ≥ 5
1 marks · 2023 · Set A
Question 88
The value of the series 1² + 2² + 3² + … + p² is
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Correct answer: (C) p(p + 1)(2p + 1)/6
1 marks · 2023 · Set A
Question 89
Which of the following steps is mandatory in the principle of mathematical induction?
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Correct answer: (B) Inductive hypothesis
1 marks · 2023 · Set A
Question 90
How many different groups of 5 men and 2 women can be made from 7 men and 3 women?
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Correct answer: (C) 63
1 marks · 2023 · Set A
Question 91
There are 12 people at a party. Each shakes hands exactly once with everyone else. How many handshakes take place?
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Correct answer: (C) 66
1 marks · 2023 · Set A
Question 92
In how many ways can 10 letters be posted in 5 postboxes, if each postbox can hold more than 10 letters?
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Correct answer: (C) 5¹⁰
1 marks · 2023 · Set A
Question 93
A triangle is formed by joining any three non-collinear points in pairs. How many triangles can be formed from n non-collinear points?
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Correct answer: (B) n(n − 1)(n − 2)/6
1 marks · 2023 · Set A
Question 94
The fourth term in the binomial expansion of (x + 1/x)⁶ is