Heat Transfer Which of the following is directly concerned with the heat transfer? Grashoff number Sherwood number Strouhal number Euler number Grashoff number Sherwood number Strouhal number Euler number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The energy radiated from a surface Q at absolute temperature T is related as Q ∝ T⁴ None of these Q ∝ T² Q ∝ T³ Q ∝ T⁴ None of these Q ∝ T² Q ∝ T³ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is >1 < 1 L 0.1 >1 < 1 L 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In thermal radiation for a black body (where, ε is emissivity and α is absorptivity) α ≠ 1, ε ≠ 1 α ≠ 1, ε = 1 α = 1; ε = 1 α = 1; ε ≠ 1 α ≠ 1, ε ≠ 1 α ≠ 1, ε = 1 α = 1; ε = 1 α = 1; ε ≠ 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashhoff number is given by gD2βΔtP²μ gD2βΔtρ/μ² gD³βΔtP²/μ gD³.β.Δtρ²/μ² gD2βΔtP²μ gD2βΔtρ/μ² gD³βΔtP²/μ gD³.β.Δtρ²/μ² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Same for all wavelengths Zero Different for all wavelengths Unity Same for all wavelengths Zero Different for all wavelengths Unity ANSWER DOWNLOAD EXAMIANS APP
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