Heat Transfer Unsteady state heat conduction occurs, when Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is dependent on time Temperature distribution is independent of time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is dependent on time Temperature distribution is independent of time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Logarithmic Parabolic Hyperbolic Linear Logarithmic Parabolic Hyperbolic Linear ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporator tubes are generally Random Inclined Vertical Horizontal Random Inclined Vertical Horizontal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its Dense structure None of these High proportion of air space High specific heat Dense structure None of these High proportion of air space High specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will Increase Remain unchanged Decrease Either increase or decrease; depends on the coolant flow rate Increase Remain unchanged Decrease Either increase or decrease; depends on the coolant flow rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the total emissivity of conductors Remains same Increases Decreases linearly Decreases Remains same Increases Decreases linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
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