Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 10 to 100 100 to 1000 1 to 100 0.5 to 50 10 to 100 100 to 1000 1 to 100 0.5 to 50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as None of these Q ∝ T² Q ∝ T⁴ Q ∝ T³ None of these Q ∝ T² Q ∝ T⁴ Q ∝ T³ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film condensation is promoted on a/an __________ surface. dirty clean & smooth coated oily dirty clean & smooth coated oily ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Graetz number > 100 Exit-fluid temperature > wall temperature Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Graetz number > 100 Exit-fluid temperature > wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are used because it occupies less floor area when heat transfer area required is very low because it is less costly when heat transfer area required is very high because it occupies less floor area when heat transfer area required is very low because it is less costly when heat transfer area required is very high ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer depends upon the __________ number. Biot Prandtl Nusselt Reynolds Biot Prandtl Nusselt Reynolds ANSWER DOWNLOAD EXAMIANS APP
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