Heat Transfer What is the emissivity of a black body? 0.5 1 0.9 0.5 1 0.9 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred None of these By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall By direct contact of hot flue gas with air None of these By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall By direct contact of hot flue gas with air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 0.5 5 1 0.5 5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.45 0.85 0.35 0.55 0.45 0.85 0.35 0.55 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Fouling factor' used in the design of a multipass shell and tube heat exchanger is a None of these Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient Factor of safety Non-dimensional factor None of these Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient Factor of safety Non-dimensional factor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Sherwood number Strouhal number Grashoff number Euler number Sherwood number Strouhal number Grashoff number Euler number ANSWER DOWNLOAD EXAMIANS APP
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