Question # 1

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

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

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

The instrument which detects the instant as which the external pressure becomes equal to the systolic pressure is called.

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Manometer

Sphygmomanometer

Barometer

Stethoscope

The drag force increases as the speed of object

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Become zero

Decreases

Increases

Remains constant

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

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Work

Volume

Pressure

Force

The SI units of flow rate are.

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m2s-1

m3s-2

m3s-1

m2s-2

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

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 dimension of pgh has same as that of

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Work

Energy

Pressure

Mass

The density of blood is nearly equal to.

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Air

Milk

Honey

Water

Let A = Area of cross section of pipe, v = speed of fluid, then 'Av' is called.

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Volume flow rate

Energy flow rate

Mass flow rate

Pressure flow rate

The law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

If the radius of droplet becomes half, then its terminal velocity will become.

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Double

Half

One fourth

Remains same

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

Blood has density equal to that of

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Mercury

Sodium

Honey

Water

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