CBSE (Central Board of Secondary Education) Class-8 Science: Questions 341 - 348 of 465

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Question 341

Question MCQ▾

The sound which a normal human can hear is called as:

Choices

Choice (4)Response

a.

Audible sounds

b.

Inaudible sounds

c.

None of the above

d.

Question does not provide sufficient data or is vague

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Question 342

Question MCQ▾

Ear protectors must be used by the:

Choices

Choice (4)Response

a.

Pneumatic drill operators

b.

Tractors drivers

c.

Factory workers

d.

All a., b. and c. are correct

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Question 343

Question MCQ▾

If you are indoors what to do during earthquake

Choices

Choice (4)Response

a.

Get under a desk table or bench

b.

Run outside

c.

Pick a safe place where things will not fall on you

d.

Both a. and c. are correct

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Question 344

Question MCQ▾

Earth is made up of:

Choices

Choice (4)Response

a.

Three layers

b.

Two layers

c.

Four layers

d.

All of the above

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Question 345

Question MCQ▾

Allowing the charge to flow to the earth is called:

Choices

Choice (4)Response

a.

Lightning

b.

Discharging

c.

Earthing

d.

Charging

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Question 346

Question MCQ▾

Intensity of sound is called as:

Choices

Choice (4)Response

a.

Amplitude

b.

Shrillness

c.

Loudness

d.

Oscillation

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Question 347

Question MCQ▾

The maximum vibration of an object is called:

Choices

Choice (4)Response

a.

Amplitude

b.

Oscillation

c.

Pitch

d.

Vibration

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Question 348

Question MCQ▾

Friction helps to:

Choices

Choice (4)Response

a.

Write on paper

b.

Walk or run

c.

Holding objects

d.

All a., b. and c. are correct

Edit