(Le/D) for fully open globe value may be around__________________?
(Le/D) for fully open globe value may be around__________________?
A. 10
B. 25
C. 75
D. 300
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Which of the following factors determine the amount of entrainment in a distillation column ?
Which of the following factors determine the amount of entrainment in a distillation column ?A. Plate spacing
B. Depth of liquid above the bubble cap slots
C. Vapour velocity in the volume between the plates
D. All A., B. and C.Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as_________________?
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as_________________?A. Δp = G
B. Δp = G0.5
C. Δp = G2
D. Δp = 1/G0.6Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation ?
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation ?A. Sorel-Lewis method
B. McCabe-Thiele’s method
C. Ponchon-Savarit method
D. None of theseIn case of a continuous distillation column, increase in reflux ratio may result in the______________?
In case of a continuous distillation column, increase in reflux ratio may result in the______________?A. Lower fixed charges for the column
B. Greater cost for the reboiler heat supply
C. Greater cost for the condenser coolant
D. All A., B. and C.The circumferential (hoop) stress in a thin walled cylindrical vessel under internal pressure is______________________?
The circumferential (hoop) stress in a thin walled cylindrical vessel under internal pressure is______________________?A. pd/2t
B. pd/4t
C. pd/t
D. pd/3tThe ratio, (propeller agitator dia/tank dia) is normally taken as____________________?
The ratio, (propeller agitator dia/tank dia) is normally taken as____________________?A. 0.15-030
B. 0.5-0.65
C. 0.75-0.85
D. 0.60-0.90