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Process Equipment and Plant Design

Process Equipment and Plant Design
Lug support is meant for supporting __________ vessels.

Small
Large horizontal cylindrical
Thick walled tall
Tall but empty

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Process Equipment and Plant Design
Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around

0.55-0.85
0.4-0.6
0.35-0.75
0.1-0.2

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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
650
450
250

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Process Equipment and Plant Design
Bracket supports are the most suitable for supporting __________ vessels.

Thin shperical (e.g. Horton sphere)
None of these
Horizontal
Thick walled vertical

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Process Equipment and Plant Design
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

Valve
Bubble cap
Sieve
Counterflow

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Process Equipment and Plant Design
Baffles may be eliminated for

Large diameter tanks
Low viscosity liquids (< 200 poise)
High viscosity liquids (> 600 poise)
None of these

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