Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. transition none of the listed here pool film transition none of the listed here pool film 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 = 2.5; (COP)HP = 1.5 (COP)R = 1.5; (COP)HP = 2.5 (COP)R = (COP)HP = 2.5 (COP)R = (COP)HP = 0.6 (COP)R = 2.5; (COP)HP = 1.5 (COP)R = 1.5; (COP)HP = 2.5 (COP)R = (COP)HP = 2.5 (COP)R = (COP)HP = 0.6 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer (Cp . μ)/K is termed as the __________ number. Grashoff Stanton Nusselt Prandtl Grashoff Stanton Nusselt Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Transmits Reflects Absorbs None of these Transmits Reflects Absorbs None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? < 1 > 1 1 None of these < 1 > 1 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these ANSWER DOWNLOAD EXAMIANS APP
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