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 A perfect black body is a perfect __________ of radiation absorber emitter Both emitter & absorber none of the listed here absorber emitter Both emitter & absorber none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Graetz number is concerned with the heat transfer in laminar flow absorption with chemical reaction heat transfer in turbulent flow mass transfer between a gas and a liquid heat transfer in laminar flow absorption with chemical reaction heat transfer in turbulent flow mass transfer between a gas and a liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Reflects Transmits None of these Absorbs Reflects Transmits None of these Absorbs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. None of these 1.49 4.88 1 None of these 1.49 4.88 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Velocity of circulation Neither A and B Both A and B Liquor-film co-efficient Velocity of circulation Neither A and B Both A and B Liquor-film co-efficient ANSWER DOWNLOAD EXAMIANS APP
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