51. For __________ Prandtl number values, the heat conduction will be negligible in the buffer zone.
52. __________ paint has the minimum absorption co-efficient.
53. In case of evaporators, liquid entrainment results primarily due to
54. In a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the
55. Indirect contact heat exchangers are preferred over direct contact heat exchangers, because
56. A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number.
57. Nucleate boiling is promoted
58. Black liquor generated during paper manufacture is concentrated in a
59. If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid
60. A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70°C to 65°C in __________ minutes.
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