Q. Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that

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Q. The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is

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Q. In a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the

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Q. To reduce the tube side pressure drop for the same flow rate, the heat exchanger recomended is

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Q. In a gas-liquid shell and tube heat exchanger, the

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Q. Which is the most suitable for the concentration of foamy & frothy liquors ?

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Q. Boiling point elevation of an ideal solution

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Q. The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the

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Q. Which of the following has the lowest overall heat transfer co-efficient ?

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Q. Low thermal conductivity of heat insulating materials is due to its

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Q. The most conducive surface for dropwise condensation to occur is the __________ surface.

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Q. In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of

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Q. Calburn analogy is applicable for the value of Prandtl number from

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Q. Pick out the correct equation.

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Q. Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C.

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Q. Correction is applied to LMTD for __________ flow.

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Q. If h1 = inner film co-efficient and h2 = outer film co-efficient, then the overall heat transfer co-efficient is

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Q. One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to

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Q. The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is

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Q. Sensible heat of hot industrial flue gases can not be recovered by a/an

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