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Process Equipment and Plant Design

Process Equipment and Plant Design
Factor of safety (i.e., overdesign factor) in heat transfer equipments is about __________ percent more than the actual/theoretical design factor.

15-20
30-35
43961
35-40

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Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.5-0.65
0.15-030
0.75-0.85
0.60-0.90

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Process Equipment and Plant Design
Bubble cap plate column is

A differential stage contactor
A finite stage contactor
Used only for distillation, not for absorption
A continuous contactor

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Process Equipment and Plant Design
In perforated plate towers, the

Pressure drop is less compared is similar bubble cap towers
Total hole area may be around 6 to 15% of tower cross-sectional area
Hole sizes may be around 1/8" or 3/16"
All of these

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

None of these
Outer
Inner
Approximate

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

0.25
0.1
0.8
0.5

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