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Learn SSC MCQs with answers [Page 1 of Department 239]

V

Vishal Gupta • 7.73K Points
Tutor III 

1) What is the difference between a CFL and an LED lamp?
1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.
2. The average life span of a CFL is much longer than that of an LED lamp.
3. ACFL is less energy-efficient as compared to an LED lamp.
Which of the statements given above is/are correct?

(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
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Correct Answer - Option (C)

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J

Jatin Dubey • 3.72K Points
Extraordinary 

2) Consider the following pairs
Mineral : Composition
1. Amphibole : Calcium-magnesium - iron silicate
2. Mica : Magnesium - iron - aluminium silicate
3. Quartz : Silicon dioxide
Which of the above pair/pairs is/are correctly matched?

(A) 1 and 2 only
(B) 2 and 3 only
(C) 3 only
(D) 1, 2 and 3
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

3) Which one of the following is not required for the formation of photochemical smog?

(A) Oxygen
(B) Oxide of nitrogen
(C) Carbon monoxide
(D) Sunlight
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Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

4) Stem Cell Therapy (SCT) is not useful for the treatment of which one of the following ailments?

(A) Kidney failure
(B) Cancer
(C) Brain injury
(D) Vision impairment
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

5) The sun is visible a little before the actual sunrise because of which one of the following?

(A) Atmospheric reflection
(B) Atmospheric dispersion
(C) Atmospheric diffraction
(D) Atmospheric refraction
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Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

6) Which one of the following is the first geostationary telecommunication satellite of India?

(A) INSAT-1A
(B) APPLE
(C) ROHINI
(D) ARYABHATIA
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Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

7) Which one of the following is the secondary source of light in a fluorescent lamp?

(A) Neon gas
(B) Argon gas
(C) Mercury vapour
(D) Fluorescent coating on the glass
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Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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J

Jatin Dubey • 3.72K Points
Extraordinary 

8) Who introduced the use of artificial heart for surgery?

(A) Christian Barnard
(B) Michael de Bakey
(C) Walton Lillehel
(D) Denton Cooly
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Correct Answer - Option (A)

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You are learning MCQ Questions of SSC Department : 239 | Page : 1

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