SSC CGL Undated PYQs

Question 1

_________ says that the marginal product of a factor input initially rises with its employment level. But after reaching a certain level of employment, it starts falling.

Accepted Answer

The Law of Variable Proportions states that as more of a variable input is added to fixed inputs, the marginal product initially increases, then diminishes, and eventually becomes negative.

Question 2

Who discovered Antarctica?

Accepted Answer

Captain James Cook was the first explorer to cross the Antarctic Circle in 1773, paving the way for the eventual discovery of the frozen continent.

Question 3

In the following question, select the related number from the given alternatives. AKP : 1121256 : : LNO : ?

Accepted Answer

Each letter is replaced by the square of its alphabetical position. A(1)→1, K(11)→121, P(16)→256. Similarly, L(12)→144, N(14)→196, O(15)→225, giving 144196225.

Question 4

Which dynasty came to power in India after the Tughlaq dynasty?

Accepted Answer

The chronological order of the Delhi Sultanate is Slave, Khilji, Tughlaq, Sayyid, and Lodi. Therefore, the Sayyid dynasty (1414-1451) immediately succeeded the Tughlaq dynasty after Timur's invasion.

Question 5

In Microsoft Word, _______ allows us to move selected paragraphs to the right.

Accepted Answer

In MS Word, the 'Increase Indent' feature pushes the selected paragraph away from the left margin towards the right. 'Decrease Indent' moves it back to the left.

Question 6

In the following question, correct the equation by interchanging the two signs. 6 ÷ 17 x 51 + 6 – 12 = – 4 6 ÷ 17 x 51 + 6 – 12 = – 4

Accepted Answer

Swap x and ÷: The equation becomes 6 x 17 ÷ 51 + 6 - 12. Using BODMAS, 17 ÷ 51 = 1/3. Then 6 x (1/3) = 2. Finally, 2 + 6 - 12 = 8 - 12 = -4.

Question 7

Who among the following is a Sanjay Chopra Award recipient for 2016?

Accepted Answer

Arjun Singh from Uttarakhand received the Sanjay Chopra Award in 2016 for his exceptional bravery in saving his mother from a tiger attack.

Question 8

Locust, Butterfly, Scorpion and Prawn are all examples of which Phylum?

Accepted Answer

These animals possess jointed appendages and an exoskeleton, which are the defining characteristics of the phylum Arthropoda, the largest phylum in the animal kingdom.

Question 9

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

Accepted Answer

Maharashtra has 19 Rajya Sabha seats and 48 Lok Sabha seats. It has the second-highest number of Rajya Sabha seats in India after Uttar Pradesh (31).

Question 10

In ΔPQR, ∠R = 54°, the perpendicular bisector of PQ at S meets QR at T. If ∠TPR = 46°, then what is the value (in degrees) of ∠PQR?

Accepted Answer

Since ST is the perpendicular bisector of PQ, TP = TQ, making ∠TQP = ∠TPQ = x. In ΔPQR, the sum of angles is (x + 46°) + x + 54° = 180°, giving x = 40°.

Question 11

What was invented by Zacharias Jansen?

Accepted Answer

Zacharias Jansen, a Dutch spectacle-maker, is widely credited with inventing the first optical telescope and the compound microscope in the late 16th century, revolutionizing the study of microbiology.

Question 12

Mahatma Gandhi in 1919 decided to launch a nationwide satyagrah against the proposed ________________.

Accepted Answer

In 1919, Mahatma Gandhi organized a nationwide Satyagraha against the Rowlatt Act, which allowed the British to imprison political activists without trial for up to two years.

Question 13

Which one of the following is a component of Food Security System?

Accepted Answer

The Food Security System in India consists of two main components: Buffer Stock and the Public Distribution System (PDS). Buffer stock ensures food availability during shortages.

Question 14

If on a Sale there is 30% discount on the marked price of Rs 2500, but the sale is done at Rs 1400 only. What additional discount (in %) did the customer get?

Accepted Answer

The first discount reduces the price to 70% of 2500, which is Rs 1750. The final price is Rs 1400, giving an additional discount of Rs 350. Thus, (350/1750)*100 = 20%.

Question 15

____________ scheme by the Central Government states that an insurance of 10 lakhs will cover each passenger traveling by Indian Rail while booking a ticket if an amount of 92paise is paid.

Accepted Answer

The Railway Travel Insurance scheme allows passengers booking e-tickets via IRCTC to opt for a ₹10 lakh travel insurance cover by paying a nominal premium of 92 paise.

Question 16

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

Accepted Answer

Using the AP formula a + (n-1)d, we get a + 2d = -9 and a + 6d = 11. Solving gives d = 5 and a = -19. The 15th term is -19 + 14(5) = 51.

Question 17

The average age of Ram and Rahim is 18 years. The average age of Rahim and Ramesh is 25 years. The average age of Ram and Ramesh is 29 years. What is the age (in years) of the eldest of the three?

Accepted Answer

Sum of ages: Ram+Rahim=36, Rahim+Ramesh=50, Ram+Ramesh=58. Total sum of all three = (36+50+58)/2 = 72. The eldest is Ramesh: 72 - (Ram+Rahim) = 72 - 36 = 36 years.

Question 18

PQRS is a square, M is the mid-point of PQ and N is a point on QR such that NR is two-third of QR. If the area of ΔMQN is 48 cm2, then what is the length (in cm) of PR ?

Accepted Answer

Let the side of the square be a. MQ = a/2 and QN = a/3. Area of ΔMQN = 1/2 × a/2 × a/3 = a²/12 = 48. Thus, a = 24. Diagonal PR = a√2 = 24√2.

Question 19

Δ DEF is right angled at E. If m∠D = 45°, then what is the value of cosecF X cotD?

Accepted Answer

Since ∠E = 90° and ∠D = 45°, ∠F must be 45°. Thus, cosecF = cosec(45°) = √2 and cotD = cot(45°) = 1. Their product is √2 × 1 = √2.

Question 20

A spaceship travels at 1,260 km/h. How many metres does it travel in 1/10 th of a second?

Accepted Answer

Convert speed to m/s: 1260 × (5/18) = 350 m/s. Distance in 1/10 second = Speed × Time = 350 × (1/10) = 35 metres.