For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

D2/(d1 + d2)

(d1 + d2)/d1

D1/(d1 + d2)

(d1 + d2)/d2

D2/(d1 + d2)

(d1 + d2)/d1

D1/(d1 + d2)

(d1 + d2)/d2

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Process Equipment and Plant Design
Which of the following types of reactors is the safest from operation point of view?

A vapor phase reactor

Pot type reactor

A liquid phase reactor

A liquid phase catalytic reactor

A vapor phase reactor

Pot type reactor

A liquid phase reactor

A liquid phase catalytic reactor

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Process Equipment and Plant Design
Bubble cap plate column is

A differential stage contactor

A continuous contactor

A finite stage contactor

Used only for distillation, not for absorption

A differential stage contactor

A continuous contactor

A finite stage contactor

Used only for distillation, not for absorption

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Smaller reactor should come first

None of these

Equal sized reactors are the best

Larger reactor should come first

Smaller reactor should come first

None of these

Equal sized reactors are the best

Larger reactor should come first

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column.

Maintenance cost for valve and seive trays are comparatively more than bubble cap tray due to their relatively complicated construction features

Murphree efficiency of all the three trays are nearly equal, however the peak efficiency is generally higher for seive and valve trays than the bubble cap

Bubble cap trays though most expensive are the best in situations, where low vapour rates is to be handled and a positive liquid seal is essential at all flow rates

Valve trays have the highest turn down ratio (i.e. the ratio of the highest to the lowest vapour flow rates) and thus provides the maximum flexible operating range

Maintenance cost for valve and seive trays are comparatively more than bubble cap tray due to their relatively complicated construction features

Murphree efficiency of all the three trays are nearly equal, however the peak efficiency is generally higher for seive and valve trays than the bubble cap

Bubble cap trays though most expensive are the best in situations, where low vapour rates is to be handled and a positive liquid seal is essential at all flow rates

Valve trays have the highest turn down ratio (i.e. the ratio of the highest to the lowest vapour flow rates) and thus provides the maximum flexible operating range

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Process Equipment and Plant Design
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the

Shell side for large overall heat transfer co-efficient

Shell side, if the flow is counter-current and tube side if the flow is co-current

Shell side for smaller total pressure drop

Tubes to avoid the expansion of high pressure shell construction

Shell side for large overall heat transfer co-efficient

Shell side, if the flow is counter-current and tube side if the flow is co-current

Shell side for smaller total pressure drop

Tubes to avoid the expansion of high pressure shell construction

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Process Equipment and Plant Design

Process Equipment and Plant Design For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

Process Equipment and Plant Design Which of the following types of reactors is the safest from operation point of view?

Process Equipment and Plant Design Bubble cap plate column is

Process Equipment and Plant Design The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Process Equipment and Plant Design Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column.

Process Equipment and Plant Design High pressure fluid in a shell and tube heat exchanger should preferably be routed through the

Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

Process Equipment and Plant Design
Which of the following types of reactors is the safest from operation point of view?

Process Equipment and Plant Design
Bubble cap plate column is

Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column.

Process Equipment and Plant Design
High pressure fluid in a shell and tube heat exchanger should preferably be routed through the