Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 100-1000 0.5-50 0.38-0.78 5-50 100-1000 0.5-50 0.38-0.78 5-50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when CPA > CPB KA < 0.5kB CPA < CPB KA>2 kB CPA > CPB KA < 0.5kB CPA < CPB KA>2 kB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Transmits Reflects None of these Absorbs Transmits Reflects None of these Absorbs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas Remains same May increase or decrease depending on the type of gas Decreases Increases Remains same May increase or decrease depending on the type of gas Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reason for operating an evaporator in multiple effect is to secure Increased steam economy Both A and B Increased capacity Decreased steam consumption Increased steam economy Both A and B Increased capacity Decreased steam consumption ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is None of these Hyperbolic Linear Parabolic None of these Hyperbolic Linear Parabolic ANSWER DOWNLOAD EXAMIANS APP
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