SSC CGL Undated PYQs

Question 1

Select the related number from the given alternatives. 2.25 : 13/4 :: 3.75 : ?

Accepted Answer

Add 1 to the first number and convert it to a fraction. 2.25 + 1 = 3.25 = 13/4. Similarly, 3.75 + 1 = 4.75 = 19/4.

Question 2

Jama Masjid of Delhi was built by?

Accepted Answer

Mughal Emperor Shah Jahan built the Jama Masjid in Delhi between 1650 and 1656. It is one of the largest mosques in India, constructed using red sandstone and white marble.

Question 3

Who is known as the 'Father of Indian Unrest'?

Accepted Answer

British journalist Valentine Chirol called Bal Gangadhar Tilak the 'Father of Indian Unrest' in his book due to Tilak's aggressive nationalist ideas and prominent role in the Swadeshi movement.

Question 4

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

Accepted Answer

For equal distances, average speed is calculated as 2xy / (x + y). Here, x = 30 and y = 60. Average speed = (2 × 30 × 60) / (30 + 60) = 3600 / 90 = 40 km/hr.

Question 5

Who invented the vacuum pump?

Accepted Answer

Otto von Guericke, a German physicist, invented the first vacuum pump in 1654. He famously demonstrated its power using the Magdeburg hemispheres, showing the immense force of atmospheric pressure.

Question 6

If the total expenses of the company are Rs 50 crores, the total expenditure (in Rs crores) on Transport and Electricity is:

Accepted Answer

Based on the given data (usually a pie chart), Transport and Electricity combined account for 40% of total expenses. 40% of 50 crores = (40/100) × 50 = 20 crores.

Question 7

There are total _________ parliamentary seats (Rajya Sabha constituency) in Odisha.

Accepted Answer

Odisha has a total of 10 Rajya Sabha seats and 21 Lok Sabha seats. The allocation is based on the population of the state.

Question 8

In April 2017, Chief Minister Amarinder Singh banned inclusion of names of Ministers and MLA's on Plaques and Foundation Stones in which state?

Accepted Answer

Captain Amarinder Singh was the Chief Minister of Punjab in 2017. He banned the names of ministers and MLAs on foundation stones to end the VIP culture in the state.

Question 9

If "+" denotes "divided by", "x" denotes "added to", "÷" denotes "subtracted from" and "–" denotes "multiplied by", then 54 + 162 – 18 x 12 ÷ 6 = ?

Accepted Answer

Substitute the signs to get: 54 ÷ 162 × 18 + 12 - 6. Using BODMAS, first divide (54/162 = 1/3), then multiply (1/3 × 18 = 6), then add and subtract: 6 + 12 - 6 = 12.

Question 10

A change in which a substance undergoes a change in its physical properties is called _____________.

Accepted Answer

A physical change occurs when a substance's physical properties, such as shape, size, or state, alter without forming any new chemical substance. Examples include melting ice or tearing paper.

Question 11

Bhutan does not share its border with which Indian state?

Accepted Answer

Bhutan shares borders with four Indian states: Sikkim, West Bengal, Assam, and Arunachal Pradesh. It does not share a border with Meghalaya, which is located further south, bordering Bangladesh.

Question 12

20% of a = b, then b% of 20 is the same as _________ of a.

Accepted Answer

Given b = 20% of a = 0.2a. We need b% of 20, which is (b/100) × 20 = b/5. Substituting b, we get 0.2a / 5 = 0.04a, which is 4% of a.

Question 13

Which of the following metal (shown by its symbol) is generally used for making filaments of bulb?

Accepted Answer

Tungsten (symbol W) is used for bulb filaments because it has a very high melting point and high resistance, preventing it from melting when glowing hot.

Question 14

Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

Accepted Answer

A pyrometer is a remote-sensing thermometer used to measure extremely high temperatures, making it ideal for metallurgical furnaces where direct contact is impossible or dangerous.

Question 15

In a certain code language, "TROUPE" is written as "GILFKV" and "ERUPTION" is written as "VIFKGRLM". How is "GENIUS" written in that code language?

Accepted Answer

Each letter is replaced by its opposite letter in the English alphabet (e.g., T-G, R-I). Applying this to GENIUS: G->T, E->V, N->M, I->R, U->F, S->H, giving TVMRFH.

Question 16

Which of the statements given below are correct? 1. The author of the novel 'Missile Gap' is Charles Stross. 2. The author of the novel 'Bird Box' is Victor LaValle. 3. The author of the novel 'The City and the City' is China Mieville.

Accepted Answer

Statements 1 and 3 are correct. 'Missile Gap' is by Charles Stross and 'The City and the City' is by China Mieville. 'Bird Box' was actually written by Josh Malerman.

Question 17

The salt concentration (measured as salinity in parts per thousand), is _______ % in sea.

Accepted Answer

The average salinity of seawater is typically around 35 parts per thousand (ppt), meaning there are about 35 grams of dissolved salts in one kilogram of seawater.

Question 18

Select the related number from the given alternatives. -3/7 : 7/3 :: 9/2 : ?

Accepted Answer

The second term is the negative reciprocal of the first term. Therefore, the negative reciprocal of 9/2 is -2/9.

Question 19

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

Accepted Answer

Let A = x - 15 and B = y - 8. Then A - B = x - y - 7. Substituting x - y = 7 gives 7 - 7 = 0. Since A = B, A³ - B³ = 0.

Question 20

Which of the following is also known as Carbolic Acid?

Accepted Answer

Phenol is an aromatic organic compound with the molecular formula C6H5OH. It was originally extracted from coal tar and is historically known as carbolic acid, widely used as an antiseptic.