NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1282 - 1287 of 1483
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Question 1282
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 |
Question 1283
Question MCQ▾
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 1284
Question MCQ▾
Solar cells are made up of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Super-conductors | |
b. | Conductors | |
c. | Insulators | |
d. | Semi-conductors |
Question 1285
Question MCQ▾
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 1286
Question MCQ▾
Which of the following composition is correct for the biogas?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 1287
Question MCQ▾
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 |