Question # 1

Rooms are heated using gas heater by:

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Conduction only

Convection and radiation

Radiation only

Convection only

Expansion in one meter steel is:

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1.0 mm

0.1 mm

1.0 mm

1.3 mm

2nd law of motion is stated as:

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F=m/a

F=ma

F=a/m

F=ma²

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

Kilowatt - hour is unit of _____________

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Power

Energy

Work

K.e

Moon is ____ satellite.

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Natural

Communications

Artificial

Geostationary

The formula of pressur is:

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Fx a

A/F

F/A

None of these

On heating the strip, ___________ expands more than_______

respectively.

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Brass, Iron

Iron, Brass

Copper, brass

Brass, copper

Work is done when force displace inits own _____________

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Way

Method

Direction

None

A straight line parallel to time-axis ona distance -time graph tells that the object is.

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Moving with constant speed

In motion

At rest

Moving with variable speed

The large unit of work is:

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Kilowatt

Kilo joul

Mega joul

Both B and C

Which of the following affects evaporation?

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Temperature

Surface area of the liquid

Wind

All of the above

The energy stored in a dam is:

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Electric energy

Potential energy

Kinetic energy

Thermal energy

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