Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid none of the listed here when Grashhoff number is very important for fluids in tubulent flow for fluids in laminar flow none of the listed here when Grashhoff number is very important for fluids in tubulent flow for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Rate = Driving force x Resistance Rate = Resistance/Driving force Driving force = Rate x Resistance Resistance = Driving force x Rate Rate = Driving force x Resistance Rate = Resistance/Driving force Driving force = Rate x Resistance Resistance = Driving force x Rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are Nu, Pr Nu, Pr, Re Re.Gz Nu, Gz Nu, Pr Nu, Pr, Re Re.Gz Nu, Gz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Decreases Remains unchanged May increase or decrease; depends on the solid Increases Decreases Remains unchanged May increase or decrease; depends on the solid Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the steam economy in case of a single effect evaporator system? 0.1 >1 1 < 1 0.1 >1 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For __________ Prandtl number values, the heat conduction will be negligible in the buffer zone. Extremely low No High Low Extremely low No High Low ANSWER DOWNLOAD EXAMIANS APP
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