HYDRAULICS AND FLUID MECHANICS IN ME QUIZ

High specific speed of turbine implies it is

None of the listed here

Impulse turbine

Propeller turbine

Francis turbine

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A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Ideal fluid

Non-Newtonian fluid

Real fluid

Newtonian fluid

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A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

1000 kg

1 kg

10 kg

100 kg

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Cavitation is caused by

low pressure

high pressure

high velocity

weak material

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Centre of pressure compared to e.g. is

above it

above or below depending on area of body

at same point

below it

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A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

Equal to

None of these

Less than

More than

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Gradually varied flow is

steady uniform

steady non-uniform

non-steady uniform

non-steady non-uniform

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When the flow parameters at any given instant remain same at every point, then flow is said to be

quasi static

laminar

uniform

steady state

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Alcohol is used in manometers because

It has low vapour pressure

It can provide longer column due to low density

It has low surface tension

It is clearly visible

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The kinematic viscosity is the

Ratio of absolute viscosity to the density of the liquid

Product of absolute viscosity and mass of the liquid

Product of absolute viscosity and density of the liquid

Ratio of density of the liquid to the absolute viscosity

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