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Process Equipment and Plant Design

Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Higher
Same
Unpredictable
Lower

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Process Equipment and Plant Design
Which of the following lengths of heat exchanger tubes are normally not used in practice?

6 metres
10 metres
2.5 metres
0.5 metre

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Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Half
Four times
Equal to
Twice

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 1.1 t
D = 3√t
D = 1.5 t
D = 1.6 √t

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Process Equipment and Plant Design
Which of the following types of reactors is the safest from operation point of view?

Pot type reactor
A liquid phase catalytic reactor
A liquid phase reactor
A vapor phase reactor

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Process Equipment and Plant Design
Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

150
50
100
10

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