Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

Process Equipment and Plant Design
Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

Three fourth

Half

1.5 times

Equal to

Three fourth

Half

1.5 times

Equal to

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Process Equipment and Plant Design
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

More than geometric mean value

More than arithmetic mean value

Both B & C

Less than arithmetic mean value

More than geometric mean value

More than arithmetic mean value

Both B & C

Less than arithmetic mean value

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Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Lower

Unpredictable

Same

Higher

Lower

Unpredictable

Same

Higher

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Process Equipment and Plant Design
What is the slope of the operating line in the stripping section of a distillation column?

< 1

?

> 1

< 1

?

> 1

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Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Is economical in operation

Both B & C

Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

Employs high velocity, high heat transfer rate and less heating surface requirement

Is economical in operation

Both B & C

Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

Employs high velocity, high heat transfer rate and less heating surface requirement

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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

Fouling fluids

Counter flow of hot and cold fluids

Multipass shell and tube heat exchanger

Double pipe heat exchanger

Fouling fluids

Counter flow of hot and cold fluids

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Process Equipment and Plant Design

Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

Process Equipment and Plant Design At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Process Equipment and Plant Design What is the slope of the operating line in the stripping section of a distillation column?

Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

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

Process Equipment and Plant Design
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Process Equipment and Plant Design
What is the slope of the operating line in the stripping section of a distillation column?

Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

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