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Process Equipment and Plant Design

Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.5
0.8
0.1
0.25

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Process Equipment and Plant Design
An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by

All of these
An increase in relatived volatility for rectification columns
An increase in liquid viscosity
Decrease in gas solubility for absorbers

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

None of these
Sorel-Lewis method
Ponchon-Savarit method
McCabe-Thiele's method

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Process Equipment and Plant Design
Oxygen carrying pipelines in chemical industries are coloured with __________ colour.

Red
Black
Yellow
Blue

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Process Equipment and Plant Design
Welded joint efficiency in the design of chemical process equipment is taken as

0.95
0.55
0.85
0.75

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Process Equipment and Plant Design
The wall thickness for a large high pressure pipeline is determined by the consideration of the

Axial tensile stress in the pipe
Temperature stresses
Circumferential pipewall tension
Forces exerted by static and dynamic action at bends

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