Exercise: General Science

Questions for: General Science

Atoms are composed of
A:
electrons and protons
B:
electrons only
C:
protons only
D:
electrons and nuclei
Answer: D
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Which among the following is a positively charged particle emitted by a radioactive element?
A:
Beta ray
B:
Alpha ray
C:
Cathode ray
D:
Gamma ray
Answer: B
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Which of the following is used as a moderator in nuclear reactor?
A:
Thorium
B:
Graphite
C:
Radium
D:
Ordinary water
Answer: B
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Knot is a unit of speed of which of the following?
A:
Aeroplane
B:
Light waves
C:
Ship
D:
Sound waves
Answer: C
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Nautical mile is a unit of distance used in
A:
navigation
B:
road mile
C:
astronomy
D:
measuring the boundaries of a nation
Answer: A
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