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Q:

Which animal dont have vocal cords?

A) Dog B) Horse
C) Giraffe D) Donkey
 
Answer & Explanation Answer: C) Giraffe

Explanation:

Giraffe have no vocal cords.

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Filed Under: Animals and Birds
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Q:

"International Day for Disaster Reduction" was observed across the world on _____ ?

A) 16 October B) 15 October
C) 14 October D) 13 October
 
Answer & Explanation Answer: D) 13 October

Explanation:

International Day for Disaster Reduction, held every 13 October, celebrates how people and communities around the world are reducing their exposure to disasters.

The year 2017 focus is : Reducing the number of affected people by disasters by 2030.

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Filed Under: Important Days and Years
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Q:

Hot water is poured simultaneously in four metallic tumblers painted outside with different points. After some time the water will be found to have cooled most in the tumbler painted.

A) rough white B) rough black
C) shining white D) shining black
 
Answer & Explanation Answer: B) rough black

Explanation:

Black  surfaces are good emitters of heat ( They are also good absorbers of heat). If the black surface is rough too, the emitting will be better. So (b) is the correct answer. Shining surfaces reflect back radiation. So if the black surface is also shining the effectiveness of emitting heat is lessened.

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Filed Under: Physics

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Q:

The largest herbarium of India is located at

A) Kolkata B) Lucknow
C) Mumbai D) Coimbatore
 
Answer & Explanation Answer: A) Kolkata

Explanation:
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Filed Under: Indian Geography

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Q:

The size of gear is usually specified by

A) pitch circle diameter B) diametral pitch
C) pressure angle D) circular pitch
 
Answer & Explanation Answer: A) pitch circle diameter

Explanation:

The size of gear is usually specified by pitch circle diameter.

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Filed Under: Physics
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Q:

Who invented the battery?

A) John Wilkinson B) Alessandro Volta
C) James Hargreaves D) Thomas Edison
 
Answer & Explanation Answer: B) Alessandro Volta

Explanation:
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Filed Under: Inventions

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Q:

Air temperatures are effected by slope and orientation as slopes facing into the Sun will be 

A) Warmer than those facing away B) Colder than those facing away
C) Neither warmer nor colder than those facing away D) None of these
 
Answer & Explanation Answer: A) Warmer than those facing away

Explanation:
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Filed Under: World Geography

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Q:

which alphabet is a fly?

A) Y B) C
C) B D) G
 
Answer & Explanation Answer: C) B

Explanation:

The alphabet 'B' resembles same as a fly 'Bee' in pronouncing.

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Filed Under: Word Puzzles
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