Prelims Daily MCQs - Science and Technology (25 April)

1. Consider the following statements regarding stem cells:

  1. A stem cell is a cell with the unique ability to develop into specialized cell types in the body.
  2. Stem cell therapy is a form of regenerative medicine designed to repair damaged cells within the body.

Which of the statement(s) given above is/are correct?

a) 1 only

b) 2 only

c) Both 1 and 2

d) Neither 1 nor 2

Ans: c

Exp: Stem cell therapy, also known as regenerative medicine, promotes the repair response of diseased, dysfunctional, or injured tissue using stem cells or their derivatives.

2.  With reference to Monkeypox disease, consider the following statements:

  1. The disease is called monkeypox because it was first identified in colonies of monkeys kept for research in 1958.
  2. There have not been any reports of monkeypox spreading through blood transfusions.
  3. Currently there is no vaccine against monkeypox.

Which of the statements given above is/are correct?

a) 1 only

b) 2 and 3 only

c) 1 and 2 only

d) 1 2 and 3

Ans: c

Exp:  Statement 3 is incorrect: A vaccine was recently approved for preventing monkeypox. Some countries are recommending vaccination for persons at risk.

3. Which of the following structures are allotropes of carbon?

  1. Fullerene
  2. Diamond
  3. Amorphous carbon

Select the correct answer using the codes given below

a) 1 and 3 only

b) 1 and 2 only

c) 2 only

d) All of the above

Ans: d


In Diamond, each carbon atom is bonded to four other carbon atoms forming a rigid three-dimensional structure.

In graphite, each carbon atom is bonded to three other carbon atoms in the same plane giving a hexagonal array.

Amorphous carbon is carbon without a crystalline structure.

4. Consider following statements regarding Solar Power.

  1. India’s largest floating solar power plant is located in Rajasthan.
  2. Solar Panels do not harm environment in any manner whatsoever.
  3. Bhadla Solar Park in Jodhpur, Rajasthan is the biggest Solar Plant of India.

Choose correct statement(s).

a) 1 and 3 only

b) 2 and 3 only

c) 3 only

d) 1 and 2 only

Ans: c

Exp: India’s largest floating solar plant is Ramagundam Solar Plant of Telangana. Solar Panels use components which do not degrade easily, also the extraction of components like Lithium harm eco-system and produce pollution, hence even renewable energy resources like solar are not completely environment-friendly. Bhadla Solar Park is the largest solar park of India.

5. Which of the following statements is the best explanation of ‘Biocapsules’

a) It is used for bioremediation of polluted sites for quick biodegradation of waste.

b) It refers to biofertilizer technology that ensures the successful delivery of biologically beneficial microbes.

c) It is used for targeted delivery of medicine to the required area without damaging the nearby organs.

d) It is a collection of genes which is sent for research along with space missions for research about possibility of life in outer space.

Ans: b

Exp: A novel method of storing and delivering microbes in a smart and precise manner to crops.

6. Find the next value in the series.

FAG, GAF, HAI, IAH, ____

a) JAK

b) HAL

c) JAI

d) HAI

Ans: a

Exp: The middle letters are static, so concentrate on the first and third letters. The series involves an alphabetical order with a reversal of the letters. The first letters are in alphabetical order: F, G, H, I , J. The second and fourth segments are reversals of the first and third segments. The missing segment begins with a new letter.

7. Abhishek put his timepiece on the table in such a way that at 6 P.M. hour hand points to North. In which direction the minute hand will point at 9.15 P.M. ?

a) South

b) West

c) North

d) South-East

Ans: b

Exp: At 9.15 P.M The minute hand will point towards west.

Cover the entire CSAT syllabus in 70 hours.

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