General Science – Measurements

6. Light year is a measurement of

A. speed of aeroplanes
B. speed of light
C. Stellar distances
D. speed of rockets

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7. Very small time intervals are accurately measure by

A. White dwarfs
B. Quartz clocks
C. Atomic clocks
D. Pulsars

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8. One kilometre is equal to how many miles?

A. 0.84
B. 0.5
C. 1.6
D. 0.62

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9. 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

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10. One horse power is equal to

A. 746 watts
B. 748 watts
C. 756 watts
D. 736 watts

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11. ‘Bar’ is the unit of

A. temperature
B. heat
C. atmospheric pressure
D. current

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12. One Joule is equal to

A.10⁵ergs
B.10³ergs
C.10⁷ergs
D.10¹¹ergs

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13. Kilowatt is a unit to measure

A. work
B. power
C. electricity
D. current

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14. Electric current is measure by

A. commutator
B. anemometer
C. ammeter
D. voltmeter

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15. A chronometer measures

A. colour contrast
B. sound waves
C. time
D. water waves

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