31. The actual temperature drop across the heating surface of an evaporator depends on the
32. In Biot number, the characteristic length used is the ratio of the __________ of the solid.
33. Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively)
34. Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low
35. All analogy equations connecting friction factor and heat transfer co-efficient apply only to
36. The unit of heat transfer co-efficient in SI unit is
37. The main purpose of providing fins on heat transfer surface is to increase the
38. Hot water (0.01 m3/min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m3/min) of density 800 kg/m3 and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately
39. The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the
40. Multiple effect evaporation accounts for
Read More Section(Heat Transfer)
Each Section contains maximum 100 MCQs question on Heat Transfer. To get more questions visit other sections.