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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

Entrainment considerations
None of these
Diameter of the column
Vapour density

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Process Equipment and Plant Design
__________ shapedroof is the most commonly used roof for cylinderical storage tanks.

Conical
Flat
Dome
Umbrella

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

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Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.75-0.85
0.60-0.90
0.5-0.65
0.15-030

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Process Equipment and Plant Design
In chemical process equipments, the conical bottom heads used, usually has an apex angle of

20°
60°
40°
80°

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Process Equipment and Plant Design
In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG.

Decreases
None of these
Increases
Remains same

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