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Process Equipment and Plant Design

Process Equipment and Plant Design
Baffle width is normally taken as __________ times the tank diameter.

0.4-0.5
0.2-0.45
0.45-0.6
0.1-0.12

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

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

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Process Equipment and Plant Design
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by

4(0.86p² - πd²/4)/πd
4(0.86p² - πd²)/πd
(p² - πd²/4)/πd
(4p² - πd²/4)/πd

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Process Equipment and Plant Design
Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is

pD/2t
pD/3t
pD/6t
pD/4t

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Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Containing suspended solids flows at low velocity
Is highly viscous
Is of high specific gravity
Containing suspended solids flows at high velocity

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Process Equipment and Plant Design
Which of the following factors affect the pressure drop in a co-current gas-liquid absorption packed tower?

All of these
Fluid flow rates
Size, shape, orientation and surface of the packing particles
Density and viscosity of fluids

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