general science general questions

16.

Nautical mile is a unit of distance used in
A.     navigation
B.     road mile
C.     astronomy
D.     measuring the boundaries of a nation
Answer & Explanation

Answer: Option A

Explanation:

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17.

Knot is a unit of speed of which of the following?
A.     Aeroplane
B.     Light waves
C.     Ship
D.     Sound waves
Answer & Explanation

Answer: Option C

Explanation:

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