Prelims MCQS Quiz 33 : Science


1. Which of the following diseases have been totally eradicated from India?
1. Polio
2. Leprosy
3. Small pox
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

2. Trans fat is used in food products to
a) improve nutrition.
b) raise good cholestrol.
c) extend shelf life.
d) none of the above.

Answer & Explanation

3. Chloroform can be used as
1. reagent
2. cleaning agent
3. insecticide
Select the correct answer using the codes given below.
a) 1 only
b) 1 and 2 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

4. Which of the following is/are example of vegetative propagation?
1. sucker removal
2. tissue culture
3. stem cutting
4. grafting
Select the correct answer using the codes given below.
a) 1, 2 and 3 only
b) 1 ,3 and 4 only
c) 2 ,3 and 4 only
d) 1 ,2, 3 and 4 only

Answer & Explanation

5. With reference to touchscreens, consider the following statements :

1. When a user touches a capacitive touchscreen some charge is transferred from the screen to the user.
2. Resistive touchscreen are better compared to capacitive ones.
Which of the statements given above is/are correct ?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

6. With reference to stem cells, consider the following statements:
1. Stem cells are found only in multicellular organism.
2. Placenta is a rich source of stem cell.
Which of the statements given above is/are correct?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

7. Which of the following are properties of neutrinos?
1. no charge
2. no mass
3. speed close to that of light
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

8. Organic light emitting diodes (OLEDs) offers which of the following advantages ?
1. made up of easily available materials.
2. require small amount of power.
3. are thinner and lighter.
Select the correct answer using the codes given below.
a) 1 and 2 only
b) 1 and 3 only
c) 2 and 3 only
d) 1, 2 and 3

Answer & Explanation

9. What is CA-MRSA ?

a) missile system developed by Israel.
b) computer worm designed to attack industrial programmable logic controllers.
c) bacteria resistant to certain antibiotics
d) California based exploration project of Mars.

Answer & Explanation

10. Consider the following statements :
1. Boiling Water Reactors (BWR) are safer compared to Pressurized Water Reactors (PWR).
2. Most of India’s nuclear reactor are PWR type.
Which of the statements given above is/are correct ?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2

Answer & Explanation

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Please read these two important articles about UPSC prelims preparation –

1. How UPSC asks current affairs in GS Prelims

2. How to practice prelims MCQs for UPSC

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