Question # 1

Which device convert sound energy into electrical energy?

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Microphone

Steam engine

Electrical Motor

Loudspeaker

The 'stones' formed in human kidney consist mostly of?

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Calcium oxalate

Sulphate

Sodium acetate

Calcium

All of the following diseases are caused by virus except?

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Janudice

Influenza

Typhoid

Mumps

Which of the following be be used to absorb neutrons to control the chain reaction during nuclear fission?

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Uranium

Plutonium

Boron

Heavy water

PME is a/an

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Pesticide

Enzyme

Insecticide

Plant

What did Earle Dickson invent in 1921?

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Blimps

Barometer

Ballpoint pens

Band-aid

Who commented ''great gift. Which he devoted to the service of mankind proved a curse t himself and to his family?

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Crawford long

Dr. Bigelow

His wife, Elizabeth

Dr. Warren

Silver were turns black after a period of time due of formation of

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Nitrate coating on silver

Oxide coating on silver

Chloride coating on silver

Sulphide coating on silver

What is termed the portion of RAM set aside for temporarily holding information read form a disk?

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ROM

Cache memory

Bus

Disk Cache

The blue color of the water the in the sea is due to:

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Refraction of the blue light by the impurities in sea water

Absorption of other colours except the blue colour by water molecules

Scattering of blue light by waters molecules

The line of force of a uniform magnetic field

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Must be divergent

Must be convergent

Must be parallel to teach other

intersect

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