Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 100-1000 0.5-50 5-50 0.38-0.78 100-1000 0.5-50 5-50 0.38-0.78 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single effect evaporator, the economy is > 1 None of these < 1 1 > 1 None of these < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the All of these Absorptivity = 0 Transmissivity = 1 Reflectivity = 0 All of these Absorptivity = 0 Transmissivity = 1 Reflectivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Monochromatic radiation only Both A and B Only volumes and not to surfaces Total radiation only Monochromatic radiation only Both A and B Only volumes and not to surfaces Total radiation only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Water Transformer oil Dilute H₂SO₄ Molten sodium (a coolant used in fast breeder reactor) Water Transformer oil Dilute H₂SO₄ Molten sodium (a coolant used in fast breeder reactor) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film condensation is promoted on a/an __________ surface. clean & smooth oily dirty coated clean & smooth oily dirty coated ANSWER DOWNLOAD EXAMIANS APP
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