Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Minimum resistance presents in the series Maximum resistance in the series Average of all resistances Sum of all resistances Minimum resistance presents in the series Maximum resistance in the series Average of all resistances Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? Reynolds number Grashhoff number none of the listed here Prandtl number Reynolds number Grashhoff number none of the listed here Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Both A and B Monochromatic radiation only Only volumes and not to surfaces Total radiation only Both A and B Monochromatic radiation only Only volumes and not to surfaces Total radiation only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time t = 356 s t = 400 s t = 800 s t = 283 s t = 356 s t = 400 s t = 800 s t = 283 s ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is Counter flow with process stream on tube side Parallel flow with process stream on shell side Counter flow with process stream on shell side Parallel flow with process stream on tube side Counter flow with process stream on tube side Parallel flow with process stream on shell side Counter flow with process stream on shell side Parallel flow with process stream on tube side ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Liquor-film co-efficient Velocity of circulation Neither A and B Both A and B Liquor-film co-efficient Velocity of circulation Neither A and B Both A and B ANSWER DOWNLOAD EXAMIANS APP
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