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Process Equipment and Plant Design

Process Equipment and Plant Design
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

Valve
Sieve
Counterflow
Bubble cap

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Process Equipment and Plant Design
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.

Either B or C; depends on maximum permissible internal pressure
Less than
More than
Equal to

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Process Equipment and Plant Design
LMTD correction factor is used in heat exchanger design for

Multipass shell and tube heat exchanger
Double pipe heat exchanger
Counter flow of hot and cold fluids
Fouling fluids

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Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Permissible slot velocity
Tray diameter
Liquid load
Vapor load

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Process Equipment and Plant Design
In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.

Molal flow rate of vapour
Vapour molecular weight
All of these
Pressure and temperature

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Half
Equal to
Three fourth
One fourth

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