Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) αT α T⁴ Independent of T α 1/T αT α T⁴ Independent of T α 1/T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 2 √(A₁ . A₂) √(A₁ + A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) 2 √(A₁ . A₂) √(A₁ + A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The non-dimensional temperature gradient in a liquid at the wall of a pipe is the Nusselt number Heat flux Prandtl number Schmidt number Nusselt number Heat flux Prandtl number Schmidt number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Neither A and B Non-isothermal Both A and B Isothermal Neither A and B Non-isothermal Both A and B Isothermal ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat sensitive materials can be concentrated in an evaporator employing None of these High pressure High residence time Vacuum None of these High pressure High residence time Vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Dilute H₂SO₄ Transformer oil Molten sodium (a coolant used in fast breeder reactor) Water Dilute H₂SO₄ Transformer oil Molten sodium (a coolant used in fast breeder reactor) Water ANSWER DOWNLOAD EXAMIANS APP
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