Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Lower steam economy Higher solute concentration in the product Lower heat transfer area Higher steam economy Lower steam economy Higher solute concentration in the product Lower heat transfer area Higher steam economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas Remains same Increases Decreases May increase or decrease depending on the type of gas Remains same Increases Decreases May increase or decrease depending on the type of gas ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Liquids Solids Gases Both solids & liquids Liquids Solids Gases Both solids & liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Backward feed None of these High pressure Vacuum Backward feed None of these High pressure Vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 1 2 0.5 1 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In natural convection heat transfer, the correlating parameter is the Graetz number Bond number Grashoff number Eckert number Graetz number Bond number Grashoff number Eckert number ANSWER DOWNLOAD EXAMIANS APP
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