Science (NCERT Based General Studies (GS)): Questions 175 - 180 of 1207

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Question number: 175

» Science » Class-8 NCERT » Coal and Petroleum (Natural Resources)

MCQ▾

Question

Non-renewable resources include:

Choices

Choice (4) Response
a.

Only living resources

b.

Only non-living resources

c.

Synthetic fibres

d.

Living and non-living resources

Question number: 176

» Science » Class-8 NCERT » Coal and Petroleum (Petroleum)

MCQ▾

Question

Petrol or gasoline is used as a fuel in:

Choices

Choice (4) Response
a.

Motor cycles

b.

Cars

c.

light vehicles

d. All a. , b. and c. are correct

Question number: 177

» Science » Class-8 NCERT » Combustion and Flame (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

Question number: 178

» Science » Class-8 NCERT » Combustion and Flame (Combustion)

MCQ▾

Question

Ignition temperature is defined as:

Choices

Choice (4) Response
a.

The amount of heat energy produced on complete combustion of 1 Kg of a fuel

b.

A substance which produce energy when burnt in presence of oxygen

c.

Lowest temperature at which substance catches fire

d. None of the above

Question number: 179

» Science » Class-8 NCERT » Coal and Petroleum (Coal)

MCQ▾

Question

Solid residue formed after the destructive distillation of coal is called:

Choices

Choice (4) Response
a.

Crude oil

b.

Petroleum

c.

Coke

d.

Coal-tar

Question number: 180

» Science » Class-8 NCERT » Coal and Petroleum (Petroleum)

MCQ▾

Question

Process of separating crude petroleum into more useful components is called as

Choices

Choice (4) Response
a.

Carbonisation

b.

Decomposition

c.

Fractional distillation

d.

Refining

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