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Process Equipment and Plant Design

Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Slope & length
Rpm
Flights arrangement
All of these

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Process Equipment and Plant Design
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by

4(0.86p² - πd²/4)/πd
4(0.86p² - πd²)/πd
(4p² - πd²/4)/πd
(p² - πd²/4)/πd

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Process Equipment and Plant Design
The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

Equal sized reactors are the best
None of these
Larger reactor should come first
Smaller reactor should come first

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Process Equipment and Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

1/2 and 5
1/2 and 8
1/64 and 1/8
1/8 and 1/64

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Process Equipment and Plant Design
A rivetted joint does not fail by __________ of rivets.

None of these
Tearing
Shearing
Tearing of the plate across a row

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Process Equipment and Plant Design
Diameter of the seive tray column is determined by the

Hole diameter of the seive tray
Height of the plate spacing
Lower limit of vapour velocity
Upper limit of the vapour velocity

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