Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Liquids Gases Both solids & liquids Solids Liquids Gases Both solids & liquids Solids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Remains unchanged Decreases Increases exponentially Increases Remains unchanged Decreases Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Capacity Rate of vaporisation Economy Rate of evaporation Capacity Rate of vaporisation Economy Rate of evaporation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C. 100-500 1000-1500 18537 5000-15000 100-500 1000-1500 18537 5000-15000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator. High pressure Falling film Long tube None of these High pressure Falling film Long tube None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 0 and 1 0 and 0.5 1 and 0 1 and ? 0 and 1 0 and 0.5 1 and 0 1 and ? ANSWER DOWNLOAD EXAMIANS APP
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