91. In a heat exchanger, floating head is provided to
92. Heat transfer rate described by Fourier's law will decrease, if the __________ increases.
93. In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased.
94. In forced convection, the heat transfer depends on
95. The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by
96. The equation, $${{\text{N}}_{{\text{st}}}} = \frac{{\text{f}}}{2},$$ is the __________ analogy.
97. The equation, $${{\text{N}}_{{\text{st}}}} \times {\text{N}}_{{\text{pr}}}^{\frac{2}{3}} = \frac{{\text{f}}}{2},$$ is the __________ analogy.
98. Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer.
99. In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.
100. Thermal conductivities of most of the liquids __________ with rise in temperature.
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