NSO Level 1- Science Olympiad (SOF) Class 8: Questions 1069 - 1074 of 1076

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Question number: 1069

» Sound

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Appeared in Year: 2012

MCQ▾

Question

Which of the following does not produce a sound wave?

Choices

Choice (4) Response

a.

An explosion on the moon

b.

A hammer hitting a block of rubber

c.

A bell ringing under water

d.

A silencer fixed gun fired

Question number: 1070

» Some Natural Phenomena

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MCQ▾

Question

The boundaries of the tectonic plates which are at high risk of earthquake are called

Choices

Choice (4) Response

a.

Danger zone

b.

Accident zone

c.

Earthquake zone

d.

Seismic zone

Question number: 1071

» Some Natural Phenomena

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MCQ▾

Question

The transfer of electric charge from a charged object to the earth is called

Choices

Choice (4) Response

a.

Conduction

b.

Charging

c.

Earthing

d.

None of the above

Question number: 1072

» Sound

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Appeared in Year: 2012

MCQ▾

Question

Sonic vibrations were sent down from a ship return after 2 second. What is the depth of the sea, if the speed of sound in water is ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1073

» Chemical Effects of Electric Current

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MCQ▾

Question

Which of the following is an example of a primary cell?

Choices

Choice (4) Response

a.

Batteries used in vehicles and Torch Cell

b.

Torch cell

c.

Solar cell

d.

Batteries used in vehicles

Question number: 1074

» Chemical Effects of Electric Current

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MCQ▾

Question

The arrangement given in the picture is called

Image shows The Electrolytic cell

Image Shows the Electrolytic Cell

Image shows The Electrolytic cell

Choices

Choice (4) Response

a.

Electrolyte

b.

Electrolysis

c.

Electrolytic cell

d.

Electrode

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