Heat Transfer What is the emissivity of a black body? 0.9 0.5 1 0.9 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be W/m.k² W/m.k W/m None, A is just a number W/m.k² W/m.k W/m None, A is just a number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always < 1 ∞ > 1 1 < 1 ∞ > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient continues to increase continues to decrease goes through a minimum goes through a maximum. continues to increase continues to decrease goes through a minimum goes through a maximum. ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2hi/K K/h0 2K/h0 hi/K 2hi/K K/h0 2K/h0 hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are used when heat transfer area required is very high because it is less costly when heat transfer area required is very low because it occupies less floor area when heat transfer area required is very high because it is less costly when heat transfer area required is very low because it occupies less floor area ANSWER DOWNLOAD EXAMIANS APP
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