NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1283 - 1288 of 1484

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Question number: 1283

» Physics » Sources of Energy

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MCQ▾

Question

Which of the following are causes the air pollution when they burnt?

I. Natural gas

II. Coal

III. Petroleum

Which of the following is/are correct?

Choices

Choice (4) Response

a.

II and III only

b.

I and III only

c.

I, II and III only

d.

I and II only

Question number: 1284

» Physics » Sources of Energy

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Question

Fuel is may be a:

I. Gas

II. Solid

III. Liquid

Which of the following is/are correct?

Choices

Choice (4) Response

a.

I and III only

b.

II and III only

c.

I, II and III only

d.

I and II only

Question number: 1285

» Physics » Sources of Energy

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MCQ▾

Question

Solar cells are made up of:

Choices

Choice (4) Response

a.

Super-conductors

b.

Conductors

c.

Insulators

d.

Semi-conductors

Question number: 1286

» Physics » Sources of Energy

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Question

In nuclear reactor, control rods are good at:

Choices

Choice (4) Response

a.

Enriched Uranium

b.

Absorbing neutrons

c.

Slow down the neutrons

d.

All of the above

Question number: 1287

» Physics » Sources of Energy

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Question

Which of the following composition is correct for the biogas?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1288

» Physics » Sources of Energy

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MCQ▾

Question

Why biogas is a better fuel than animal dung cakes?

Choices

Choice (4) Response

a.

Biogas is easy to store but animal dung cakes are inconvenient to store

b.

Biogas is a less polluting agent as compared to animal dung cakes

c.

Biogas burns smoothly but animal dung cakes do not

d.

All a. , b. and c. are correct

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