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Process Equipment and Plant Design

Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

2500
15000
7500
1250

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Temperature
Pressure/pressure fluctuation
Turbulence
Noise

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Process Equipment and Plant Design
The dust collection efficiency of a cyclone separator

Decreases with increase in gas flow rate
Is inversely proportional to the mass of the dust particle
Is directly proportional to the radius of the dust particle path
None of these

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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

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

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Process Equipment and Plant Design
In case of bubble cap distillation column of diameter greater than 1.2 metres, the cap diameter is roughly about __________ cms.

20
10
30
35

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Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

18-22
43990
43864
44180

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