Chemical Engineering · all questions

Fluid Mechanics
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Q701

The bulk modulus of elasticity of a liquid

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Q702

For the transfer of solution of thick slurry, the pump used is a __________ pump.

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Q703

Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

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Q704

In laminar flow through a round tube, the discharge varies

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Q705

What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate?

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Q706

The hydrodynamic and thermal boundary layers will merge, when

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Q707

Unit of mass velocity is

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Q708

Scale up of agitator design requires

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Q709

A centrifugal pump is called a turbine pump, if it is having a

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Q710

The head loss in turbulent flow in a pipe varies

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Q711

The head loss in turbulent flow in a pipe varies

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Q712

A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is

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Q713

The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.

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Q714

The __________ is measured by a piezometric opening.

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Q715

Multistage compressors are used in industry, because they

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Q716

Vane anemometer

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Q717

If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V = fluid velocity f = friction factor).

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Q718

Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around

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Q719

A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

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Q720

Volute type of casing is provided in a centrifugal pump to

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