General Science – Exercise – 3

106. Nautical mile is a unit of distance used in

(a) navigation
(b) road mile
(c) astronomy
(d) measuring the boundaries of a nation

107. Knot is a unit of speed of which of the following?

(a) Aeroplane
(b) Light waves
(c) Ship
(d) Sound waves

108. kilohertz is a unit which measures

(a) power used by a current of one ampere
(b) electromagnetic radio wave frequencies
(c) voltage
(d) electric resistance

109. One kilometre is equal to how many miles?

(a) 0.84
(b) 0.5
(c) 1.6
(d) 0.62

110. Kilowatt is a unit to measure

(a) work
(b) power
(c) electricity
(d) current

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