Question # 1

Stoke's law holds for bodies having.

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Spherical shape

Oblong shape

Rectangular shape

All shapes

The dimensional of potential energy per unit volume are same as that of.

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Work

Pressure

Speed

Density

The frictional effect between the different layers of fluid is called

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Terminal velocity

Stock's law

Viscosity

Surface tension

The dimension of viscosity are

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[M2L-2T2]

[M-1LT-1]

[M-1L-1T]

[ML-1T-1]

Pressure of fluid will be low where speed of fluid is.

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Low

Zero

High

Constant

Air blows from

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High pressure to low pressure

Low pressure to high pressure

Low temperature to high temperature

High temperature to low temperature

Bunsen burner works on the principle of.

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Venturi effect

Terricilli's effect

Bernoulli's effect

None of these

The SI unit of flow rate are

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m-sec^-2

m³-sec^-1

m³-sec^-2

m-sec^-3

Torricelli's theorem is given by

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When water falls from tap, its cross sectional area decrease due to.

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Decrease of speed

Increase of speed

Air pressure

Gravity increase

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

The product of cross sectional area of a pipe and speed of fluid along the pipe is

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Zero

Maximum

Constant

Variable

A fog droplets are in freely falling condition,. the ratio of their radii is 2:3, the ratio of their terminal velocities will be.

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2:3

4:6

4:9

9:4

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

The ratio of the velocities of wate in a pipe lying horizontally at two ends is 1 : 4 The ratio of diameters of pipe at these two ends is.

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1 : 2

2 : 1

1 : 4

4 : 1

The term in Bernoulli's equation has the same unit as

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Work

Volume

Pressure

Force

The unit of co efficient of viscosity in S.I system

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Kg -1 ms-1

Kg m-1 s-1

kg -1 m-1

Kg ms-1

Which material has maximum viscosity

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Glycerin

Plasma

Methanol

Water

This is used for

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Co-efficient of friction

Co-efficient of expansion

Co-efficient of viscosity

Co-efficient of contraction

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