Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Remains unchanged Increases Increases exponentially Decreases Remains unchanged Increases Increases exponentially Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is 12.0 kW/m² 16.5 kW/m² 11.2 kW/m² 14.6 kW/m² 12.0 kW/m² 16.5 kW/m² 11.2 kW/m² 14.6 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the Capacity of the evaporator is increased True temperature drop increases Capacity of the evaporator is decreased Both B and C Capacity of the evaporator is increased True temperature drop increases Capacity of the evaporator is decreased Both B and C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/4 2f f/2 f f/4 2f f/2 f ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff s law applies to __________ radiation Both total & monochromatic None of the listed here monochromatic total Both total & monochromatic None of the listed here monochromatic total ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for A black body All bodies Black painted bodies only Polished bodies only A black body All bodies Black painted bodies only Polished bodies only ANSWER DOWNLOAD EXAMIANS APP
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