81. Heat waves
82. Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger?
83. Which characteristic of a fluid is not important in deciding its route in a shell and tube heat exchanger?
84. The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature)
85. For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature)
86. __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side.
87. Which of the following has the highest thermal conductivity?
88. Overall heat transfer co-efficient for cooling of hydrocarbons by water is about
89. Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.)
90. The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe )
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