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.Management Sciences
Category: Process Equipment and Plant Design
A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the__________________?
A. Central dished section and corner torus section
B. Corner torus section and central dished section
C. Central dished section and straight flange section
D. Straight flange section and corner torus section
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when________________?
A. Hydrostatic head is required for refluxing the condensate
B. Only the function of condensation is to be carried out
C. Sub-cooling of condensate is desired
D. Both the functions of condensation & sub cooling are carried out in a single unit
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will _____________ times?
A. Increase by 1.8
B. Decrease by 22
C. Increase by 21.6
D. None of these
For pipe flows, head is proportional to ______________ at constant capacity (where D = pipe diameter) ?
A. 1/D
B. 1/D2
C. 1/D5
D. D2
In a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?
A. 1.3 to 2
B. 1.6 to 2
C. 2.5
D. 1.5 to 3
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed _______________________ of the column diameter?
A. 1/10-1/15th
B. 1/5-1/10th
C. 1/20-1/30th
D. 1/2 to 1/4th
A cylindrical storage tank can have a self supported conical roof ?
A. If its diameter is less than 15-20metres
B. If its diameter is more than 50 meters
C. If the thickness of the roof is more than that of the cylindrical shell
D. Irrespective of its diameter
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