Heat Transfer Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively) E/C 1/CE C/E CE E/C 1/CE C/E CE ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Elastic Inertial Viscous None of these Elastic Inertial Viscous None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred None of these By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall By direct contact of hot flue gas with air None of these By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall By direct contact of hot flue gas with air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. the least the largest no lower the least the largest no lower ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A multiple effect evaporator as compared to a single effect evaporator of the same capacity has Higher steam economy Lower heat transfer area Lower steam economy Higher solute concentration in the product Higher steam economy Lower heat transfer area Lower steam economy Higher solute concentration in the product ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Remains unchanged May increase or decrease; depends on the solid Decreases Increases Remains unchanged May increase or decrease; depends on the solid Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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