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Process Equipment and Plant Design

Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 0.22 NRe0.05
f = 25/NRe
f = 16/NRe
f = 0.04/NRe0.16

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

20 to 100
1000 to 2000
500 to 750
1 to 5

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Process Equipment and Plant Design
for couplings and unions would be

350
60
Negligible
200

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Process Equipment and Plant Design
Diameter of the seive tray column is determined by the

Hole diameter of the seive tray
Upper limit of the vapour velocity
Lower limit of vapour velocity
Height of the plate spacing

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Process Equipment and Plant Design
An underdesigned steam trap will

Destroy itself of acceleration wear due to rapid recycling
Back up condensate and cause water hammer in steam line
Waste steam
None of these

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Process Equipment and Plant Design
In chemical process equipments, the conical bottom heads used, usually has an apex angle of

80°
60°
40°
20°

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