Heat Transfer LMTD for counterflow and prallel flow heat exchanger will be the same, when the Outlent temperature of both the hot and cold fluid are same None of these Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlent temperature of both the hot and cold fluid are same None of these Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of Activity co-efficients Concentrations Mass transfer co-efficients Chemical potentials Activity co-efficients Concentrations Mass transfer co-efficients Chemical potentials ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Viscosity of gases __________ with increase in temperature. Increase slowly Decrease slowly Remain unaffected Increase very rapidly Increase slowly Decrease slowly Remain unaffected Increase very rapidly ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires None of these Lower maintenance cost Less heating surface More space None of these Lower maintenance cost Less heating surface More space ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 88.66 Dependent on NRe only 1.66 3.66 88.66 Dependent on NRe only 1.66 3.66 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is Zero >1 <1 1 Zero >1 <1 1 ANSWER DOWNLOAD EXAMIANS APP
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