Fluid Mechanics - Chemical Engineering Questions and Answers

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Normal depth in open channel flow is the depth of flow in the channel

corresponding to uniform flow.

measured normal to the channel bed.

corresponding to steady flow.

none of these.

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Which of the following flow measuring devices is an area meter ?

Venturimeter

Orifice meter

Anemometer

Rotameter

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With decrease in particle size to be fluidised by a particular fluid, the operating range of fluidisation velocity

widens

squeezes

does not change

unpredictable from the data

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Diaphragm valves are used for handling __________ fluids.

corrosive

viscous

non-Newtonion

solid suspended

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The schedule number of a pipe is an indication of its

size

roughness

material density

wall thickness

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Minimum porosity for fluidisation is

that corresponding to static bed.

that corresponding to completely fluidised bed.

the porosity of the bed when true fluidisation begins.

less than that of the' static bed.

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A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now

increase

decrease

remain same

data insufficient to predict

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Steady non-uniform flow is exemplified by flow through a/an

long pipe at constant rate.

long pipe at decreasing rate.

expanding tube at increasing rate.

expanding tube at constant rate.

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The maximum depth from which a centrifugal pump can draw water is

dependent on the speed of the pump.

dependent on the power of the pump.

34 feet.

150 feet.