Removal of ______________ heat is involved in the condensation of a vapor under saturated conditions?

A. T1 – T2
B. T1 – Ta
C. T2 – Ta
D. None of these

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. Steam
B. Condensate
C. Non-condensable
D. None of these

A. Facilitate the cleaning of outer tube surface
B. Enhance turbulence
C. Hold the tubes in position
D. All A , B & C

A. Glazed
B. Oily
C. Coated
D. Smooth

A. For fluids in laminar flow
B. For fluids in turbulent flow
C. When Grashoff number is very important
D. For liquid metals