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Process Equipment and Plant Design

Process Equipment and Plant Design
Skirt support is the most suitable for supporting __________ vessels.

Tall vertical
Large horizontal
Small horizontal
Thick walled

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dt)/ph
(ph - dh . dt/2)/ph
(ph - dh)/ph
(ph - dh)/dh

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Process Equipment and Plant Design
To keep the power input constant for a stirred vessel operating under fully developed turbulent flow conditions (constant power number), if the impeller diameter is increased by 20%, the impeller speed should be decreased by a factor of

(1.2)2/3
(1.2)3/5
(1.2)3/2
(1.2)5/3

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Process Equipment and Plant Design
Reflux ratio variation in a distillation column is between

None of these
Zero and infinity
Minimum and infinity
Zero and one

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Process Equipment and Plant Design
The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is __________ stress.

Thermal
Shear
Tensile
Compressive

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Process Equipment and Plant Design
A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

95
19
38
76

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