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Physics

Physics
The pressure exerted by a 760 mm column of mercury at 0°C is known as

1 poise
1 pascal
1 atmosphere
1 bar

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Physics
Decibel is a term connected with :

Sound
Water
Air
Soil

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Physics
Flywheel is an important part of a steam engine because it :

Accelerates the speed of the engine
Helps the engine in keeping the speed uniform
Decreases the moment of inertia
Gives strength to the engine

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Physics
It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

Pascal's law
Newton's third law
Newton's second law
Law of inertia

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Physics
The flux commonly used in brazing is

Zinc chloride
Borax
Resin plus alcohol
Ammonium chloride

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Physics
A doppler effect occurs when a source of sound moves

Towards you
None of these
Away from you
Both A & B

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