NSO Level 1- Science Olympiad (SOF) Class 8: Questions 625 - 628 of 1076

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Question number: 625

» Combustion and Flame

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MCQ▾

Question

Aditya and Anagha were assigned a task by their science teacher. She gave both of them the arrangement to boil water as shown in the figure. Aditya has kept his beaker on the outermost part of the flame while Anagha has kept the beaker close to the wick of the candle. Who would be able to boil the water faster?

Image of two beaker with boil water

Image of Two Beaker with Boil Water

Choices

Choice (4)Response

a.

Anagha

b.

Aaditya

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question number: 626

» Combustion and Flame

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MCQ▾

Question

A substance which puts out fire is called a

Choices

Choice (4)Response

a.

Non-combustible substances

b.

Extinguisher

c.

Combustible substances

d.

Inflammable substances

Question number: 627

» Combustion and Flame

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MCQ▾

Question

Food can be considered as a fuel. The facts supporting this statement are

Choices

Choice (4)Response

a.

A substance that reacts with oxygen to give out energy is called a fuel

b.

Food reacts with oxygen to give out energy

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 628

» Combustion and Flame

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MCQ▾

Question

When a person’s dress catches fire, the best way to extinguish fire is to

Choices

Choice (4)Response

a.

Spray carbon dioxide gas on him

b.

Spray water on him

c.

Cover the person with a thick blanket

d.

Cover the person with a plastic sheet

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