Heat Transfer In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head twice four times none of the listed here square root of twice four times none of the listed here square root of ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Graetz number is given by mCp/kL kL/mCp kμ/mCp mCp/kμ mCp/kL kL/mCp kμ/mCp mCp/kμ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal efficiency of a reversible heat engine operating between two given thermal reservoirs is 0.4. The device is used either as a refrigerator or as a heat pump between the same reservoirs. Then the coefficient of performance as a refrigerator (COP)R and the co-efficient of performance as a heat pump (COP)HP are (COP)R = (COP)HP = 0.6 (COP)R = 2.5; (COP)HP = 1.5 (COP)R = (COP)HP = 2.5 (COP)R = 1.5; (COP)HP = 2.5 (COP)R = (COP)HP = 0.6 (COP)R = 2.5; (COP)HP = 1.5 (COP)R = (COP)HP = 2.5 (COP)R = 1.5; (COP)HP = 2.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the unit of thermal conductivity ? Kcal/hr. °C Kcal/hr.m Kcal/hr. m² °C Kcal/hr.m.°C Kcal/hr. °C Kcal/hr.m Kcal/hr. m² °C Kcal/hr.m.°C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In which mode of heat transfer, the Biot number is important? Natural convection Forced convection Radiation Transient heat conduction Natural convection Forced convection Radiation Transient heat conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. Increases May increase or decrease, depends on the type of baffle Decreases Does not affect Increases May increase or decrease, depends on the type of baffle Decreases Does not affect ANSWER DOWNLOAD EXAMIANS APP
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