Question # 1

One horse power is equal to:

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746 W

749 W

764 W

794 W

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be:

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Maximum

Minimum

Zero

None of the above

Action and Reaction are always on:

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Same body

Different bodies

Any body

None of these

Thermostat is a controlling switch:

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Heat

Temperature

Sound

Light

Which following works on Pascal's law?

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Screw gauge

Vernier callipers

Hydraulic press

Wedge

Fourth state of matter is:

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Solid

Plasma

Liquid

Gas

Magnetic force is an example of :

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Action at a distance

Force

Torque

Nil

Convection of heat is the process of heat transfer due to the:

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Random motion of molecules

Downward movement of molecules

Upward movement of molecules

Free movement of molecules

If heat Q flows in time 't' through some metal then rate of flow of heat is defined as

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Flow of heat = 2Qt

Flow of heat = Q/t

Flow of heat = t/Q

Flow of heat = Qt

The value of g on moon's surface is 1.6 ms-2. What will be the weight of a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

Normal human body temperature is :

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15°C

98.6°C

37°C

37°F

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

Formula of weight is derived from which law?

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First law

Second law

Third law

Law of conservation of momentum

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