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Process Equipment and Plant Design

Process Equipment and Plant Design
In a __________ rivetted joint, the number of rivets decreases from the innermost row to the outermost row.

Zig-zag
None of these
Diamond
Chain

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Process Equipment and Plant Design
Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer).

750
450
650
250

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

1000 to 2000
20 to 100
1 to 5
500 to 750

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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 distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Lower skirt clearance
Small downcomer liquid seal
Lower static submergence
Liquid gradient on the tray

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Process Equipment and Plant Design
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is

Same
About 0.33 times
Less
About 3 times

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