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Process Equipment and Plant Design

Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

Dynamic
Geometrical
All of these
Kinematic

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Process Equipment and Plant Design
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

Both B & C
Less than arithmetic mean value
More than arithmetic mean value
More than geometric mean value

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Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Half
Equal to
Eight times
Twice

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Process Equipment and Plant Design
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

Orifice baffle
75% cut segmental baffle
25% cut segmental baffle
Disk and doughnut baffle

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Process Equipment and Plant Design
In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.

2.7 to 3
1.1 to 1.5
2.2 to 2.6
1.6 to 2

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Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.02 to 0.05 d
0.2 to 0.5 d
0.5 to 0.6 d
0.08 to 0.12 d

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