പോ
5:120 ۸۴۴
Correct Answer:- ೦೧000

Question46:-Pick correct statement for flow over a flat plate.
ஜரீர்‌ Prandtl number ಇ 3, thermal boundary layer is thicker than hydrodynamic boundary layer
ಮ Prandtl number > 1, thermal boundary layer is thicker than hydrodynamic boundary layer
C=For Prandtl number > 3, thermal boundary layer is thicker than hydrodynamic boundary layer

D:-For Prandt! number

hydrodynamic boundary layer is thicker than thermal boundary layer
Correct Answer: Option-C

Question47:-Use of baffles in shell and tube heat exchangers results in
‘AcIncrease in flow path and velocity of shell fluid
B:-Decrease in flow path and increase in velocity of shell fluid
C=Increase in flow path and velocity of tube fluid
Decrease in flow path and increase in velocity of tube fluid
Correct Answer:- ೦೧000

Question48::When thick liquor is highly viscous, which of the following feeding methods is preferred 7
‘Ac Forward feed
B:-Backward feed
രില്‍ feed
D:-All the above give equal performance
Correct Answer: Option ®

Question49:-Steam consumption in an evaporator is given by
‘ACapacity x Economy
B:-Capacity/Economy
C:Economy/Capacity
D-None of the above
Correct Answer: Option ®

QuestionS0:-Compared to single effect evaporator, for multiple effect evaporators
‘AcBoth economy and capacity increase
B:-Economy reduces and capacity increases
C:Economy increases and capacity reduces
D:-Both economy and capacity reduce
Correct Answer: Option-C

QuestionS1:-Absorption factor is
‘Ac Ratio of slope of equilibrium line to that of operating line
B:-Ratio of slope of operating line to that of equilibrium line
C=Product of slope of equilibrium line and that of operating line
Sum of slope of equilibrium line and that of operating line
Correct Answer: Option ®

Question52:-Fick’s first law of diffusion is

0:44

Correct Answer: Option-D
Question53:-As temperature increases, equilibrium solubility of a gas in a liquid during absorption

Asincreases