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Process Equipment and Plant Design

Process Equipment and Plant Design
Tube side heat transfer co-efficient for turbulent flow of liquid through tubes is proportional to

G1.5
G0.8
G0.5
G0.2

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

1 to 1.5
2 to 2.5
0.5 to 1
1.5 to 2

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Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

A/P
4 A/P
√A
4 P/A

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Process Equipment and Plant Design
In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aa = Annular passage area, and Sa = Slot area)

Aa = 1.5 Sa
Sa = 1.5 Aa
Aa = Sa
1.2 Aa = 1.2 Sa

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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.

(1/n)th
0.5 nth
nth
1.5 nth

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Process Equipment and Plant Design
The buckling tendency of compression members is always in the direction of the

Least radius of gyration
Perpendicular to the axis of the load
Axis of the load
None of these

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