Q:

What is the action of dry HCl gas on dry litmus paper?

A) Blue litmus paper turns white	B) Blue or red litmus paper does not change its colour
C) Blue litmus paper turns red	D) Red litmus paper turns blue

Answer & Explanation Answer: B) Blue or red litmus paper does not change its colour

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Filed Under: Chemistry
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Q:

Which of the following is not correct with reference to Bio-sand Water Filter?

A) It deactivates or kills pathogens	B) Sedimentation removes larger particles
C) Filtration removes smaller particles	D) High quality water is always assured

Answer & Explanation Answer: D) High quality water is always assured

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Filed Under: Chemistry
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Q:

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A) 8,000 J	B) 4,00,000 J
C) 0 J	D) 4,000 J

Answer & Explanation Answer: C) 0 J

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Filed Under: Physics
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Q:

What is the range of frequencies of sound waves audible to human beings?

A) 16kHz to 200kHz	B) 16Hz to 16kHz
C) 16Hz to 20kHz	D) 14Hz to 20kHz

Answer & Explanation Answer: C) 16Hz to 20kHz

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Q:

A compressed spring possesses more energy than a spring of normal length because the compressed spring has

A) chemical energy	B) potential energy
C) heat energy	D) kinetic energy

Answer & Explanation Answer: B) potential energy

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Q:

Which amendment of the Constitution of India increased the age of retirement of High Court judges from 60 to 62 years?

A) 10th	B) 12th
C) 15th	D) 245th

Answer & Explanation Answer: C) 15th

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Filed Under: Indian Politics
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Q:

California - based private spaceflight company Space X has launched which secret mission for United States government?

A) Sprint	B) Zuma
C) Cygnus	D) Dream Chaser

Answer & Explanation Answer: B) Zuma

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Filed Under: General Science
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Q:

Granite is an example of

A) Metamorphic rock	B) Sedimentary rock
C) Igneous rock	D) Artificial stone

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