Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would First increase and then decrease Decrease First decrease and then increase Increase First increase and then decrease Decrease First decrease and then increase Increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is >1 < 1 L 0.1 >1 < 1 L 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its High specific heat Dense structure None of these High proportion of air space High specific heat Dense structure None of these High proportion of air space ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For specified tube outside diameter, higher BWG means higher tube thickness cross-sectional area weight per unit length none of the listed here tube thickness cross-sectional area weight per unit length none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Crystallisation of solids from a homogeneous solution is a/an __________ process. Mildly endothermic Exothermic None of these Highly endothermic Mildly endothermic Exothermic None of these Highly endothermic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Both counter and parallel-flow of the fluids Only parallel-flow of fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Both counter and parallel-flow of the fluids Only parallel-flow of fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger ANSWER DOWNLOAD EXAMIANS APP
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