SSC CGL Undated PYQs

Question 1

The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its ___________.

Accepted Answer

The melting point is the specific temperature at which a solid changes its state to a liquid at standard atmospheric pressure by overcoming its intermolecular forces.

Question 2

Improve the bracketed part of the sentence. (Being a pleasant evening), we went out for a long drive on a highway.

Accepted Answer

The original sentence has a dangling participle. 'Being a pleasant evening' needs a subject. 'It' correctly introduces the absolute phrase, making the sentence grammatically sound.

Question 3

Which among the following country exited from Trans Pacific Partnership (TTP) in Jan 2017 ?

Accepted Answer

In January 2017, US President Donald Trump signed an executive order to formally withdraw the United States from the Trans-Pacific Partnership (TPP) trade deal.

Question 4

In the following question, select the related letter from the given alternatives. DE : O : : AF : ?

Accepted Answer

The pattern is (D+E) = (4+5) = 9. O is the 15th letter. 9+6=15. So, for AF, (A+F) = (1+6) = 7. Adding 6 gives 13, which is K.

Question 5

Which among the following is/are female hormones? (i) Estrogen (ii) Progesterone (iii) Testosterone

Accepted Answer

Estrogen and progesterone are the primary female sex hormones responsible for the reproductive system. Testosterone is primarily a male sex hormone.

Question 6

The demand for a inferior good decreases with ________ in the consumer's income.

Accepted Answer

Inferior goods have a negative income elasticity of demand. As a consumer's income increases, they purchase less of these goods and shift to higher-quality alternatives.

Question 7

What is the difference in number of shoes of Puma and Vans?

Accepted Answer

Identify the total number of Puma and Vans shoes from the provided data chart. Subtract the smaller value from the larger one to find the exact difference, which is 96.

Question 8

What is the common characteristic of the elements of the same group in the periodic table?

Accepted Answer

Elements in the same group of the periodic table have the same number of valence electrons (electrons in the outermost shell), which gives them similar chemical properties.

Question 9

What is the equation of the line perpendicular to the line 5x + 3y = 6 and having Y-intercept -3?

Accepted Answer

The slope of 5x + 3y = 6 is -5/3. A perpendicular line has slope 3/5. With y-intercept -3, the equation is y = (3/5)x - 3, which simplifies to 3x - 5y = 15.

Question 10

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice. I hope that I shall win this dance competition.

Accepted Answer

The original sentence has a main clause 'I hope' and a subordinate clause 'that I shall win this dance competition'. In passive voice, 'I hope' becomes 'It is hoped' and the subordinate clause is transformed appropriately.

Question 11

______________ means that the Supreme Court will reconsider the case and the legal issues involved in it.

Accepted Answer

Appellate jurisdiction allows the Supreme Court to hear appeals against judgments of lower courts, meaning it reconsiders the case and its legal issues.

Question 12

Improve the bracketed part of the sentence. Rohan was upset and so (picked up) his food while his cousins ate heartily.

Accepted Answer

The phrasal verb 'picked at' means to eat only small amounts of food without enthusiasm, which fits Rohan's upset state. The other options do not convey this meaning.

Question 13

At what temperature (in Fahrenheit) pure water freezes?

Accepted Answer

Pure water freezes at 0 degrees Celsius. To convert to Fahrenheit, use the formula F = (C × 9/5) + 32. Thus, 0°C equals exactly 32°F.

Question 14

_______ optical data storage is a technology where data is stored in multiple layers in the optical disc.

Accepted Answer

3D optical data storage allows data to be recorded and read in three dimensions (multiple layers) within an optical disc, significantly increasing its storage capacity.

Question 15

Which of the following is responsible for giving colour to human skin?

Accepted Answer

Melanin is a biological pigment produced by melanocytes in the skin. It determines the color of human skin, hair, and eyes, and protects against UV radiation.

Question 16

The ratio of the volume of two cylinders is 7 : 3 and the ratio of their heights is 7 : 9. If the area of the base of the second cylinder is 154 cm2, then what will be the radius (in cm) of the ﬁrst cylinder?

Accepted Answer

Base area ratio A1/A2 = (V1/V2) × (h2/h1) = (7/3) × (9/7) = 3/1. Since A2 = 154, A1 = 462. Thus, πr² = 462, giving r² = 147, so r = 7√3.

Question 17

The weights of 4 boxes are 40, 70, 80 and 50 kilograms.Which of the following cannot be the total weight,in kilograms, of any combination of these boxes and in a combination a box can be used only once?

Accepted Answer

The total weight of all boxes is 240 kg. Combinations include 40+70+50=160 kg and 70+80+50=200 kg. No combination adds up to 220 kg, making it the correct answer.

Question 18

__________ (HHDD) is a technology where the conventional disk drive is combined with non-volatile flash memory, of typically 128 MB or more to cache data during normal use.

Accepted Answer

HHDD stands for Hybrid Hard Disk Drive. It combines a traditional magnetic hard drive with solid-state flash memory to improve overall performance, caching, and boot speeds.

Question 19

What is the sum of the ﬁrst 13 terms of an arithmetic progression if the 5th term is 1 and the 8th term is -17?

Accepted Answer

Find common difference (d) and first term (a). a+4d=1 and a+7d=-17 gives d=-6, a=25. Sum of 13 terms = 13/2 * [2(25) + 12(-6)] = 13 * (-11) = -143.

Question 20

What is the ratio of tigers in sanctuaries E and F to that of tigers in sanctuaries D and C?

Accepted Answer

Find the total number of tigers in sanctuaries E and F, then find the total for D and C. Divide the first sum by the second to get the required ratio 7:3.