SSC CGL Undated PYQs

Question 1

In Microsoft Excel, the _______() function returns the smallest value among the values passed as arguments.

Accepted Answer

In MS Excel, the MIN() function is specifically designed to evaluate a set of numbers or a range and return the smallest value among them.

Question 2

Which country has launched the longest bullet train line covering a distance of 2252 kilometers in January, 2017?

Accepted Answer

In January 2017, China launched the world's longest bullet train line, the Shanghai-Kunming line, covering 2,252 kilometers. It significantly reduced travel time between the two major cities.

Question 3

______________ scheme launched by the Central Government aims to spur social, economic and infrastructure development in rural areas by developing a cluster of 300 Smart Villages.

Accepted Answer

The Shyama Prasad Mukherji Rurban Mission (SPMRM) was launched in 2016 to develop 300 rural clusters with urban-like facilities, bridging the rural-urban divide and stimulating local economic development.

Question 4

Which movie won the award for the best movie at the Oscar Awards 2017?

Accepted Answer

At the 89th Academy Awards in 2017, 'Moonlight' won the Best Picture award. It was a historic win, famously announced after 'La La Land' was mistakenly declared the winner initially.

Question 5

Which country has banned 'Facebook' ?

Accepted Answer

China banned Facebook in 2009 following the Ürümqi riots to control information flow. They use domestic alternatives like WeChat and Weibo instead.

Question 6

The marginal product curve is inverse ____ shaped.

Accepted Answer

The marginal product curve initially rises, reaches a maximum, and then falls due to the law of diminishing returns, forming an inverse 'U' shape.

Question 7

If sec (3x – 20°) = cosec (3y + 20°), then what is the value of tan (x + y)?

Accepted Answer

Since sec A = cosec B implies A + B = 90°, we get 3x - 20° + 3y + 20° = 90°. This gives 3(x + y) = 90°, so x + y = 30°. Thus, tan(30°) = 1/√3.

Question 8

Anil is twice as good as workman as Bimal and together they ﬁnish a piece of work in 9 days. In how many days will Anil alone ﬁnish the work?

Accepted Answer

Anil's efficiency is 2, Bimal's is 1. Total efficiency = 3. Total work = 3 × 9 = 27 units. Time taken by Anil alone = 27 / 2 = 13.5 days.

Question 9

A bus travels 2/5 of a total journey at its usual speed. The remaining distance was covered by bus at 6/7 of its usual speed. Due to slow speed it reaches its destination 50 minutes late. If the total distance is 200 kms, then what is the usual speed (in km/hr) of bus?

Accepted Answer

Remaining distance is 120 km. The time difference is 120/(6v/7) - 120/v = 20/v hours. Equating this to 50/60 hours gives 20/v = 5/6, so v = 24 km/hr.

Question 10

Which one among the following is a main system board of a computer?

Accepted Answer

The motherboard is the main printed circuit board in a computer. It connects and allows communication between all crucial electronic components, such as the CPU and memory.

Question 11

The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (in kg) of the 50th student?

Accepted Answer

Total weight = 100 × 32 = 3200 kg. Weight of 99 students = (49 × 30) + (50 × 34) = 1470 + 1700 = 3170 kg. 50th student = 3200 - 3170 = 30 kg.

Question 12

Improve the bracketed part of the sentence. I (didn't see) him since we met two years ago.

Accepted Answer

The phrase 'since we met two years ago' indicates an action that started in the past and continues to the present. This requires the present perfect tense, 'have not seen'.

Question 13

Arrange the given words in the sequence in which they occur in the dictionary. 1. Train 2. Topper 3. Tingling 4. Tumbler 5. Traction 1. Train 2. Topper 3. Tingling 4. Tumbler 5. Traction

Accepted Answer

Comparing the letters alphabetically: 'Ti' (3) comes first, followed by 'To' (2). For 'Tr', 'Traction' (5) precedes 'Train' (1). Lastly, 'Tu' (4). The correct order is 3, 2, 5, 1, 4.

Question 14

The short run average cost curve is ____ shaped.

Accepted Answer

The short-run average cost curve is U-shaped due to the law of variable proportions. Costs initially fall with increased production, reach a minimum, and then rise.

Question 15

What is the area (in sq cm) of an equilateral triangle of side 6 cm?

Accepted Answer

The area of an equilateral triangle is given by the formula (√3/4) × a². Substituting a = 6, we get (√3/4) × 36 = 9√3 sq cm.

Question 16

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 1st year?

Accepted Answer

Difference for 2 years is P(R/100)² = 200, so P(0.2)² = 200, giving P = 5000. For 1 year half-yearly, rate is 10% and periods = 2. Difference = 5000(0.1)² = 50.

Question 17

What is the unit of calorific value?

Accepted Answer

Calorific value measures the heat energy produced by the complete combustion of a unit mass of fuel. Energy is in kilojoules (kJ) and mass in kilograms (kg), making it kJ/kg.

Question 18

Who wrote 'Akbarnama'?

Accepted Answer

'Akbarnama', the official chronicle of the reign of Akbar, was written by his court historian Abul Fazal in Persian. It also includes the famous 'Ain-i-Akbari'.

Question 19

UV rays coming from Sun, majorly causes which cancer?

Accepted Answer

UV rays from the sun penetrate the skin and damage the DNA in skin cells, leading to mutations that primarily cause skin cancer like melanoma.

Question 20

If (3)2 @ 1 * 7 = 98 and  (4)2 @ 2 * 16 = 178, then (5)2 @ 3 * 9 = ?

Accepted Answer

The pattern is: (A)² concatenated with B, then add C. For (5)2 @ 3 * 9: 5² = 25, concatenated with 3 gives 253. 253 + 9 = 262.