Questions

Q:

The material used in electric heater is

A) Tungsten B) Nichrome
C) Brass D) Steel
 
Answer & Explanation Answer: B) Nichrome

Explanation:
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Q:

Which instrument is used for measuring humidity of atmosphere?

A) Barometer B) Anemometer
C) Thermometer D) Hygrometer
 
Answer & Explanation Answer: D) Hygrometer

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Q:

The color with the longest wavelength is

A) Red B) Violet
C) Indigo D) Orange
 
Answer & Explanation Answer: A) Red

Explanation:

Each color has a different wavelength.

 

Red has the longest wavelength and violet has the shortest wavelength.

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Q:

While watching 3D movies at the theater, we have to wear special glasses because?

A) The glasses allow our left and right eyes to see different images B) 3-D movies use special colors which cannot be sensed by the human eye
C) 3-D movies are brighter than ordinary movies and can hurt our eyes if seen directly D) The glasses allow both the eyes to see similar images
 
Answer & Explanation Answer: A) The glasses allow our left and right eyes to see different images

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Q:

Cold air is ______.

A) lighter than warm air hence cold air settles down B) heavier than warm air hence cold air rises up
C) lighter than warm air hence cold air rises up   D) heavier than warm air hence cold air settles down  
 
Answer & Explanation Answer: D) heavier than warm air hence cold air settles down  

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Q:

SMOG is a combination of

A) Air and water vapour B) Water and smoke
C) Fire and water D) Smoke and fog
 
Answer & Explanation Answer: D) Smoke and fog

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Q:

The wilting of plants takes place due to _____.

A) Photosynthesis B) Transpiration
C) Absorption D) Respiration
 
Answer & Explanation Answer: B) Transpiration

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Q:

What is the theme of the 2018 International Day of Democracy?

Answer

The International Day of Democracy is observed every year on September 15 to highlight the values of freedom and respect for human rights as essential elements of democracy.


 


The theme of the 2018 International Day of Democracy is "Democracy under Strain : Solutions for a changing world".

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