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Science & Tech Quiz 1(20 Questions)

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What is the source of electric energy in an artificial satellite?

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The energy generation in stars is due to which one of the following?

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The tail of a comet always points away from the Sun due to

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Which planet has the maximum number of satellites?

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Gamma radiations are used for

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Radio Isotopes are

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An astronaut on a space walk changes his direction

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Bats can fly in the dark because -

a) They have better vision in the dark.

b) The pupils of their eyes are very big.

c) They are guided by ultrasonic waves produced by them.

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Echoes are produced due to 

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A thermostat in a device for

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An iron hammer, lying in the sun appears much hotter than its wooden handle because

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When a ship enters a sea from a river

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Which one of the following is shipyards builds warships for Indian Navy?

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18 carat gold is

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The amplitude of an earthquake measured 8 on the Richter scale is how many times larger than the one measured 4 on the scale?

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Which of the following is/are units of length?

a) Nanometre

b)Light Year

c)Astronomical Unit

d)Parsec

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Noise level above which of the following limits can cause death in human beings?

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Which one of the following measures the intensity of earthquakes?

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Rains sensors fitted on the windshield wipers of some automobiles are based on which of the following principles?

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Which one of the following is incorrect about Ultrasound?

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