The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is ________________?

A. Total heat transfer area of all the effects is -less than that in a single effect evaporator system
B. Total amount of vapor produced per Kg of feed steam in a multiple effect system is much
higher than in a single effect
C. Boiling point elevation in a single effect system is much higher than that in any effect in a
multi-effect system
D. Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect
system

A. Brick
B. Air
C. Water
D. Silver

A. Nitrogen
B. Steel
C. Carbon black
D. Tar

A. 0.06 to 120
B. 0.6 to 120
C. 1 to 103
D. 1 to 50

A. Temperature of the body only
B. Wavelength of monochromatic radiation
C. Both A. and B.
D. Nature of material of body

A. 1000
B. 727
C. 800
D. 1200