Heat Transfer Prandtl number is the ratio of Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Peclet number (Pe) is given by Pe = Re/Pr Pe = Pr/Re Pe = Nu.Re Pe = Re.Pr Pe = Re/Pr Pe = Pr/Re Pe = Nu.Re Pe = Re.Pr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is independent of time Temperature distribution is dependent on time Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is independent of time Temperature distribution is dependent on time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T³ Q ∝ T⁴ None of these Q ∝ T² Q ∝ T³ Q ∝ T⁴ None of these Q ∝ T² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reason for operating an evaporator in multiple effect is to secure Decreased steam consumption Increased capacity Increased steam economy Both A and B Decreased steam consumption Increased capacity Increased steam economy Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Volume to surface area Perimeter to surface area Surface area to volume Surface area to perimeter Volume to surface area Perimeter to surface area Surface area to volume ANSWER DOWNLOAD EXAMIANS APP
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