Questions

Q:

Which of the following is the cleanest source of energy?

A) Biofuel B) Fossil fuel
C) Nuclear power D) Wind energy
 
Answer & Explanation Answer: D) Wind energy

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Filed Under: General Science
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Q:

___________ is obtained by evaporation of sea.

A) Sugar B) Iron
C) Salt D) Steel
 
Answer & Explanation Answer: C) Salt

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Filed Under: General Science
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Q:

What is the name of ecologically clean rocket developed by Russia based space research center?

A) Angara B) Vostok
C) Korolev D) Luna
 
Answer & Explanation Answer: A) Angara

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Filed Under: General Science
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Q:

Rectifiers convert _____.

A) high voltage to low voltage B) low voltage to high voltage
C) AC to DC D) DC to AC
 
Answer & Explanation Answer: C) AC to DC

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Filed Under: Physics
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Q:

Which of the following is a Non-Luminous body?

A) Glowing bulb B) Moon
C) Burning candle D) Firefly
 
Answer & Explanation Answer: B) Moon

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Filed Under: Physics
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Q:

While selling a shirt, a shopkeeper gives a discount of 7%. If he gives discount of 9% he earns Rs. 15 less on profit. The market price of the shirt is :­

A) 712 B) 787
C) 750 D) 697
 
Answer & Explanation Answer: C) 750

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Q:

What is special about a sword-billed hummingbird?

A) It is the smallest bird in the world B) Its bill is longer than the rest of its body
C) It lives only in Antarctica D) It cannot fly
 
Answer & Explanation Answer: B) Its bill is longer than the rest of its body

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Filed Under: Animals and Birds
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Q:

Stainless steel was invented by

A) William Howard Livens B) Joseph Aspdin
C) Harry Brearley D) James Dyson
 
Answer & Explanation Answer: C) Harry Brearley

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Filed Under: Inventions
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