In a cooling tower, water becomes cool by________________?
A. Loosing sensible heat
B. Heat transfer to surroundings
C. Vaporisation due to heat loss to air
D. Loosing latent heat
A. Loosing sensible heat
B. Heat transfer to surroundings
C. Vaporisation due to heat loss to air
D. Loosing latent heat
A. Average
B. Geometric mean
C. Product
D. Sum
A. Kcal/hr. m2 °C
B. Kcal/hr.m.°C
C. Kcal/hr.m
D. Kcal/hr. °C
A. Temperature of the heating surface is less than the boiling point of the liquid
B. Temperature of the heating surface is more than the boiling point of the liquid
C. Bubbles from heating surface are absorbed by the mass of the liquid
D. Very large vapour space is necessary
A. Increasing temperature of the vapour
B. Decreasing temperature of the vapour
C. Increasing viscosity of the film of condensate
D. Increasing temperature drop
A. Non-dimensional factor
B. Factor of safety
C. Conversion factor for individual film heat transfer co-efficient to overall heat transfer coefficient
D. None of these
A. 0.1
B. > 1
C. < 1
D. 1