Science and Technology Multiple Choice Questions (Set 1)

Science and Technology Multiple Choice Questions

1. Which of the following pair(s) is/are correctly matched? 

Spacecraft

Purpose

Cassini-Huygens

Orbiting the Venus and transmitting data to the Earth

Messenger

Mapping and investigating the Mercury

Voyager

Exploring the outer solar system

Select the correct answer using the code given below.

a) 1 only

b) 2 and 3 only

c) 1 and 3 only

d) 1, 2 and 3

2. Which reference to Agni-IV Missile, which of the following statements is/are correct? 

1) It is a surface-to-surface missile.

2) It is fuelled by liquid propellant only.

3) It can deliver one-tonne nuclear warheads about 7500 km away.

Select the correct answer using the code given below.

a) 1 only

b) 2 and 3 only

c) 1 and 3 only

d) 1, 2 and 3

 3. In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? 

(1) Iris scanning

(2) Retinal scanning

(3) Voice recognition

Select the correct answer using the code given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

 4. Consider the following diseases 

(1) Diphtheria

(2) Chickenpox

(3) Smallpox

Which of the above diseases has/have been eradicated in India?

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None

5.
 Fruits stored in a cold chamber exhibit longer storage life because 

(a) exposure to sunlight is prevented

(b) concentration dioxide in the is increased of carbon environment

(c) rate of respiration is decreased

(d) there is an increase in humidity

6. Many transplanted seedlings do not grow because

(a) the new soil does not contain favorable minerals

(b) most of the root hairs grip the new soil too hard

(c) most of the root hairs are lost during transplantation

(d) leaves get damaged during transplantation

7. Recombinant DNA technology (Genetic Engineering) allows genes to be transferred 

(1) Across different species of plants.

(2) From animals to plants.

(3) From microorganisms to higher organisms.

Select the correct Solution using the codes given below.

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

8. Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to

(1) Resist drought and increase absorptive area

(2) Tolerate extremes of PH

(3) Resist disease infestation

Select the correct Solution using the codes given below:

(a) 1 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

9. Consider the following phenomena: 

(1) Size of the sun at dusk

(2) Colour of the sun at dawn

(3) Moon being visible at dawn

(4) Twinkle of stars in the sky

(5) Polestar being visible in the sky

Which of the above are optical illusions?

(a) 1, 2 and 3

(b) 3, 4 and 5

(c) 1, 2 and 4

(d) 2, 3 and 5

 10. Rainbow is produced when sunlight falls on drops of rain. Which of the following physical phenomena are responsible for this? 

(1) Dispersion

(2) Refraction

(3) Internal reflection

Select the correct Solution using the codes given below.

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

Learn more:

Answers:

1. (b) 2 and 3 only

2. (a) 1 only

3. (d) 1, 2 and 3

4. (b) 3 only

5. (c) rate of respiration is decreased

6. (c) most of the root hairs are lost during transplantation

7. (a) 1 only

8. (d) 1, 2 and 3

9.(c) 1, 2 and 4

10. (a) 1 and 2 only

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