Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for Polished bodies only A black body All bodies Black painted bodies only Polished bodies only A black body All bodies Black painted bodies only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Finned tube heat exchangers are used for smaller heat load give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity are used for smaller heat load give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is independent of time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is dependent on time Temperature distribution is independent of time Heat flows in one direction only Three dimensional heat flow is concerned Temperature distribution is dependent on time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & polished Black & polished White & rough Black & rough White & polished Black & polished White & rough Black & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats P and Q P and S P and R R and S P and Q P and S P and R R and S ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. 1 None of these 4.88 1.49 1 None of these 4.88 1.49 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS