SSC CGL Undated PYQs

Question 1

Through which of the following actions does the lithosphere move over the asthenosphere?

Accepted Answer

The lithosphere is the rigid outermost shell of a rocky planet, and the asthenosphere is the highly viscous, mechanically weak, and ductile region of the upper mantle. Plate tectonics is the scientific theory that describes the large-scale motion of Earth's lithosphere.

Question 2

A/an ______ is a natural geo-hydrological unit of land, which collects water and drains it
through a common point by a system of streams.

Accepted Answer

The definition provided perfectly describes a watershed, which is an area of land that drains all the streams and rainfall to a common outlet. An aquifer is an underground layer of water-bearing permeable rock, a reservoir is an artificial lake used for storing water, and warabandi is a system of rotational water distribution in irrigation.

Question 3

Who among the following is one of the authors of ‘The Hitman: The Rohit Sharma Story’?

Accepted Answer

The book 'The Hitman: The Rohit Sharma Story' is co-authored by G. Krishnan and Sujith S. The question asks for one of the authors, and G. Krishnan is listed as an option.

Question 4

Who among the following Indian-American scientists was appointed as the acting chief of
staff of the US space agency NASA, in February, 2021?

Accepted Answer

Bhavya Lal, an Indian-American scientist, was appointed as the acting chief of staff of NASA in February 2021. This is a direct current affairs question requiring knowledge of recent appointments.

Question 5

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 6

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 7

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 8

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 9

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 10

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 11

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 12

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 13

Select the most appropriate synonym of the given word.

Leverage

Accepted Answer

The word 'leverage' refers to the power to influence a person or situation. Among the given options, 'influence' is the most appropriate synonym as it directly conveys this meaning.

Question 14

Select the most appropriate ANTONYM of the given word.

Inﬁrm

Accepted Answer

The word 'Infirm' means not physically or mentally strong, especially through age or illness. Therefore, its most appropriate antonym is 'Strong'. Options 2, 3, and 4 are synonyms of 'Infirm'.

Question 15

Select the most appropriate option to ﬁll in the blank.

His ______ of the topic was so good that students had few doubts at the end of the class.

Accepted Answer

The word 'exposition' means a comprehensive description and explanation of an idea or theory. This fits perfectly in the context of a teacher explaining a topic clearly to students.

Question 16

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.

Question 17

Four number-pairs have been given, out of which three are alike in some manner and one is
different. Select the number-pair that is different.

Accepted Answer

The pattern for the number pairs is (First Number * 6) - 5 = Second Number. For options 1, 2, and 4, this pattern holds true. However, for option 3, (27 * 6) - 5 = 162 - 5 = 157, which is not 82. Thus, 27 : 82 is the different pair.

Question 18

Select the option in which the numbers are related in the same way as are the numbers of
the following set.

(12, 14, 143)

Accepted Answer

The pattern in the given set (12, 14, 143) is (First Number + Second Number - 1) * (Second Number - 1) = Third Number. So, (12 + 14 - 1) * (14 - 1) = 25 * 13 = 325. This is incorrect. The correct pattern is (First Number + 1) * (Second Number - 1) = Third Number. So, (12 + 1) * (14 - 1) = 13 * 13 = 169. This is also incorrect. The correct pattern is (First Number * Second Number) - (First Number + Second Number) = Third Number. So, (12 * 14) - (12 + 14) = 168 - 26 = 142. This is close to 143. Let's try another pattern. (First Number - 1) * (Second Number + 1) = Third Number. So, (12 - 1) * (14 + 1) = 11 * 15 = 165. This is incorrect. The pattern is (First Number + 1) * (Second Number - 1) = Third Number. So, (12 + 1) * (14 - 1) = 13 * 13 = 169. This is not 143. Let's try (First Number * Second Number) - (First Number + Second Number - 1) = Third Number. (12 * 14) - (12 + 14 - 1) = 168 - 25 = 143. Applying this pattern to the options: Option 1: (12 * 18) - (12 + 18 - 1) = 216 - 29 = 187. Not 246. Option 2: (17 * 12) - (17 + 12 - 1) = 204 - 28 = 176. Not 134. Option 3: (16 * 10) - (16 + 10 - 1) = 160 - 25 = 135. Not 235. Option 4: (15 * 19) - (15 + 19 - 1) = 285 - 33 = 252. This matches. Therefore, option 4 is the correct answer.

Question 19

Which two signs should be interchanged to make the given equation correct?

156 – 13 + 9 × 18 ÷ 5 = 169

Accepted Answer

We need to test each option by interchanging the signs and evaluating the expression using the BODMAS rule. Only when '-' and '÷' are interchanged, the equation becomes 156 ÷ 13 + 9 × 18 - 5 = 12 + 162 - 5 = 174 - 5 = 169, which is correct.

Question 20

Accepted Answer

Figure-based question. Compare the transformation rule in the prompt to each option figure.