Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T³ None of these Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these Q ∝ T² Q ∝ T⁴ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Presence of a non-condensing gas in a condensing vapour None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer is not a function of the __________ number. Both B & C Grashoff Reynolds Nusselt Both B & C Grashoff Reynolds Nusselt ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law. Nature of the body None of these Temperature of the body Wavelength of radiation Nature of the body None of these Temperature of the body Wavelength of radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For an ideal black body Transmissivity = 1 Absorptivity = 1 Reflectivity = 1 Emissivity = 0 Transmissivity = 1 Absorptivity = 1 Reflectivity = 1 Emissivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? None of these Diagonal square pitch Triangular pitch Square pitch None of these Diagonal square pitch Triangular pitch Square pitch ANSWER DOWNLOAD EXAMIANS APP
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