NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1279 - 1283 of 1484

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Question 1279

Question

MCQ▾

Which of the following are used as ‘Moderator’ in nuclear reactor?

I. Graphite

II. Cadmium

III. Boron

IV. Beryllium

Which of the following is/are correct?

Choices

Choice (4)Response

a.

II and IV only

b.

I and IV only

c.

II and III only

d.

I and III only

Question 1280

Question

MCQ▾

Which of the following considered as biogas?

Choices

Choice (4)Response

a.

Gobar gas plant

b.

Cattle dung

c.

Garbage

d.

Both a. and b. are correct

Question 1281

Question

MCQ▾

In which year the first practical solar cell made?

Choices

Choice (4)Response

a.

1958

b.

1954

c.

1839

d.

1883

Question 1282

Question

MCQ▾

Which of the following are good source of energy?

I. Be economical

II. Be easily be transported and stored

III. Which would be easily accessible

IV. Present in abundant quantity

Which of the following is/are correct?

Choices

Choice (4)Response

a.

I, II, III and IV only

b.

I and II only

c.

I, II and IV only

d.

II, III and IV only

Question 1283

Question

MCQ▾

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

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