Combustion and Flame-Fire (CBSE Class-8 Science): Questions 1 - 5 of 5

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Question number: 1

» Combustion and Flame » Fire » Fire Extinguisher

MCQ▾

Question

A device used to stop fire is called:

Choices

Choice (4) Response

a.

Rapid combustion

b.

Fire extinguisher

c.

Sand bucket

d.

Ideal fuel

Question number: 2

» Combustion and Flame » Fire » Fire Extinguisher

MCQ▾

Question

Fire extinguishers used at airports and petrol pumps based on the principle of:

Choices

Choice (4) Response

a.

Cooling the fire

b.

Smothering the fire

c.

Question does not provide sufficient data or is vague

d.

None of the above

Question number: 3

» Combustion and Flame » Fire » Fire Extinguisher

MCQ▾

Question

Soda acid fire extinguisher based on the principle of:

Choices

Choice (4) Response

a.

Smothering the fire

b.

Cooling the fires

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question number: 4

» Combustion and Flame » Fire » Fire Extinguisher

MCQ▾

Question

Types of fire that cannot be controlled by throwing water are:

Choices

Choice (4) Response

a.

Fire produced by crackers

b.

Fire produced by burning of oil or petrol

c.

Fire produced by electric short circuit

d.

Both b. and c. are correct

Question number: 5

» Combustion and Flame » Fire » How Do We Control Fire?

MCQ▾

Question

Fire can be controlled by:

Choices

Choice (4) Response

a.

Presence of combustible substance

b.

If any of the condition require for combustion are not met then fire can be extinguished

c.

Presence of supporter of combustion (oxygen of air)

d.

Attainment of proper ignition temperature

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