Question # 1

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

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Increases, decreases

Increases, increases

Decreases, increases

None of these

A device used to measure the speed of liquid flow is known as

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barometer

speedometer

sphygmomanometer

venture-meter

How much force is required to slide one layer of the liquid over the other layer is measured by

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friction

density

viscosity

resistivity

What are the SI base units of the coefficient of viscosity

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Kg m s^-2

kgm² s^-2

Kg m s^-1

kg m^-1s^-1

Bernoulli's equation is based upon law of conversation of

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mass

momentum

Energy

None

Bernoulli's equation is based upon law of conservation

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Mass

Momentum

Energy

None of these

The fluid is incompressible, if itsdensity is

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zero

constant

very high

very small

Bernoulli's equation is important in the field of

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Electrical circuit

Magnetism

Photoelectric effect

Flow of fluids

The dimensions of viscosity are:

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M²L^-1T^-2

M^-1L¹T^-1

M^-1L^-1T

ML^-1T^-1

Above a certain velocity of a fluid is called

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turbulent flow

steady flow

either of them

both of them

When there is no internal frictional forces between the adjacent layers of fluid, then the fluid is called

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incompressible

compressible

viscous

non viscous

If the flow is incompressible and the flow is steady then the mass of the fluid through the pipe

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increases

decreases

becomes zero

is conserved

In case of streamed lined flow of liquid, the loss of energy is

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Maximum

Minimum

Infinite

equal to what is in turbulent flow

Where the streamlines are very far apart from each other, the pressure will be

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low

zero

high

all of them

The irregular and unsteady flow of the fluid is called

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turbulent flow

steady flow

either of them

both of them

Rate of flow can be expressed in

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litre/sec

litre-sec

sec/litre

sec/litre-m

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