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General Science

General Science
Optic fibers are mainly used for which of the following?

Communication
Weaving
Food industry
Musical instruments

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General Science
Fathom is the unit of

Depth
Frequency
Distance
Sound

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General Science
Which of the following is used as a moderator in nuclear reactor?

Graphite
Ordinary water
Radium
Thorium

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General Science
In an atomic explosion, enormous energy is released which is due to

Conversion of neutrons into protons
Conversion of mechanical energy into nuclear energy
Conversion of chemical energy into heat energy
Conversion of mass into energy

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General Science
In which of the following activities silicon carbide is used?

Cutting very hard substances
Making cement and glass
Disinfecting water of ponds
Making casts for statues

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General Science
Galvanised iron sheets have a coating of

Zinc
Chromium
Tin
Lead

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