Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 2 1 0.5 2 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation emitter none of the listed here Both emitter & absorber absorber emitter none of the listed here Both emitter & absorber absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation energy is emitted by all the substances, which are above 100°C 0°C 0°K none of the listed here 100°C 0°C 0°K none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to That across the entire pipe None of these Heat flux Temperature difference That across the entire pipe None of these Heat flux Temperature difference ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not concerned with the heat transfer? Stanton number Brinkman number Peclet number Schmidt number Stanton number Brinkman number Peclet number Schmidt number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Solids Both solids & liquids Liquids Gases Solids Both solids & liquids Liquids Gases ANSWER DOWNLOAD EXAMIANS APP
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