Heat Transfer Double pipe heat exchangers are used because it is less costly when heat transfer area required is very low when heat transfer area required is very high because it occupies less floor area because it is less costly when heat transfer area required is very low when heat transfer area required is very high because it occupies less floor area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & polished Black & rough Black & polished White & rough White & polished Black & rough Black & polished White & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A graph between __________ is called Wilson plot. 1/U Vs . 1/v0.8 V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/V 1/U Vs . 1/v0.8 V0.8 Vs . U 1/v0.8 Vs . U 1/U Vs . 1/V ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The unit of conductance in SI unit is W/m² W/m°K W/°K W/m W/m² W/m°K W/°K W/m 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 Which of the following has the minimum absorptivity? Iron plates Coal dust Aluminium foil Refractory bricks Iron plates Coal dust Aluminium foil Refractory bricks ANSWER DOWNLOAD EXAMIANS APP
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