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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

10000
5000
1000
3000

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Process Equipment and Plant Design
Pressure drop per tray in the atmospheric distillation column is about __________ psi.

0.07 - 0.12
0.01 - 0.5
0.5 - 1.0
43833

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Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.02 to 0.05 d
0.5 to 0.6 d
0.2 to 0.5 d
0.08 to 0.12 d

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Process Equipment and Plant Design
In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect.

0.5 nth
1.5 nth
nth
(1/n)th

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

60°
40°
80°
20°

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

Pressure/pressure fluctuation
Noise
Temperature
Turbulence

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