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Process Equipment and Plant Design

Process Equipment and Plant Design
Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer).

750
250
450
650

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Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Longitudinal
Radial
Compressive
Circumferential tensile

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Process Equipment and Plant Design
__________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids.

Bubble cap plate
Sieve plate
None of these
Packed

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Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

None of these
At the mid thickness of the cylindrical wall
At the outer surface
At the inner surface

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Process Equipment and Plant Design
Baffle spacing is generally __________ the I.D. of the shell.

Both B and C
Not greater than
Not less than one fifth of
More than

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point higher than either of the components, when it shows __________ deviation from Raoult's Law.

None of these
Positive
Negative
No

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