Q:

Warm air is ______.

A) heavier than cold air hence warm air rises up	B) lighter than cold air hence warm air moves down
C) lighter than cold air hence warm air rises up	D) heavier than cold air hence warm air moves down

Answer & Explanation Answer: C) lighter than cold air hence warm air rises up

Explanation:

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Q:

Humidity is a measure of the _______________.

A) pressure in the air	B) viscosity of the air
C) air resistance	D) moisture in air

Answer & Explanation Answer: D) moisture in air

Explanation:

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Q:

In a transformer the tappings are generally provided on

A) Primary side	B) low voltage side
C) High voltage side	D) Secondary side

Answer & Explanation Answer: C) High voltage side

Explanation:

Tappings are provided in order to maintain the terminal voltage across the loads within the permissible specified limits with respect to load variations.

Generally tappings are preferred on HV side, because the HV side is low current side, tap changer involves low current interruption and large variations or small steps are possible due to more no of turns.

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Q:

Which of the following glows with special colour depending on the nature of gas in the fluorescent tube?

A) Plasma	B) Hydrogen
C) Helium	D) Bose-Einstein condensate

Answer & Explanation Answer: A) Plasma

Explanation:

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Q:

A body is initially moving with a velocity of 10 m/s. It undergoes an acceleration of 2 m/s2 for 5 seconds. Find the displacement (in m) of this body in these 5 seconds.

A) 25	B) 37.5
C) 50	D) 75

Answer & Explanation Answer: D) 75

Explanation:

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Q:

Which State in India has introduced FAT Tax on junk food

A) Rajasthan	B) Kerala
C) Andhra Pradesh	D) Bihar

Answer & Explanation Answer: B) Kerala

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Q:

Which of the following country’s national flag has a Dragon on it?

A) Nepal	B) Sri Lanka
C) Myanmar	D) Bhutan

Answer & Explanation Answer: D) Bhutan

Explanation:

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Q:

A fresh egg when placed in salt water will

A) sink and go to the bottom	B) sink but will not go to the bottom
C) float	D) burst

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