Question # 1

The equation of continuity

A₁V₁= A₂V₂is for the flow of

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an ideal fluid

an incompressible fluid

a non visconcous fluid

all of the above

The force exerted by the fluid in a hydraulic pump on the piston is 10 cm², the fluid pressure on the piston is, in N/cm²

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20

200

2000

20,000

In a normal healthy person the value of systolic pressure is

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75 torr

80 torr

120 torr

all of them

Bernoulli's equation is the fundamental equation in fluid dynamics, which relates pressure to fluid

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speed

height

none of them

both of them

Surface tension of water is due to

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Inter molecular attractions

Inter molecular spaces

Inter molecular repulsion

None of above

The SI unit of viscosity is

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kg m^-1s^-1

kg ms^-1

kg m^-1s^-2

kg m^-1s

The terminal velocity of water droplet of radius 1 x 10^-4m and desity 1000 kg m^-3descending through air of viscosity 19 x 10^-6kg. m^-1s^-1is

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2.5 ms^-1

3.2 ms^-1

4.3 ms^-1

1.1 ms^-1

Drag force increases if speed of the object moving through the fluid:

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Increases

Decreases

Remains constant

None of these

In a normal healthy person the value of diastolic pressure is

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75 - 80 torr

100 torr

120 torr

none of them

Glycerin has viscosity _____ the viscosity of water:

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More than

Equal to

Less than

None of these

Rate of flow can be expressed in

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litre/sec

litre-sec

sec/litre

sec/litre-m

According to the Bernoulli's equation, where the speed of the fluid is high, the pressure will be

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low

zero

high

all of them

When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

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F_D-mg

Zero

mg-F_D

None of these

The flow of an ideal fluid is

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streamline flow

incompressible flow

non-viscous

all of the above

At high speed, fluid friction _____ and fuel consumption ___,:

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Increases, decreases

Increases, increases

Decreases, increases

None of these

The application of Bernoulli's equation is

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Torricelli's theorem

Venture relation

Binomial theorem

Both a and b

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ECAT Physics Chapter 6 Fluid Dynamics Online Test MCQs With Answers

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