Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Increases Decreases May increase or decrease; depends on the solid Remains unchanged Increases Decreases May increase or decrease; depends on the solid Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Results in making part of the heating surface inactive Provide very large heat transfer co-efficient None of these Results in abruptly increased velocity Results in making part of the heating surface inactive Provide very large heat transfer co-efficient None of these Results in abruptly increased velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Lube oil Liquid metal Water Aqueous solution Lube oil Liquid metal Water Aqueous solution ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the nature of material of body none of the listed here wavelength of monochromatic radiation temperature of the body only nature of material of body none of the listed here wavelength of monochromatic radiation temperature of the body only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) √(ΔT) (ΔT)³ (ΔT)² (ΔT)⁴ √(ΔT) (ΔT)³ (ΔT)² (ΔT)⁴ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A graph between __________ is called Wilson plot. 1/U Vs . 1/V V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/v0.8 1/U Vs . 1/V V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/v0.8 ANSWER DOWNLOAD EXAMIANS APP
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