Heat Transfer Low thermal conductivity of heat insulating materials is due to its Dense structure High proportion of air space None of these High specific heat Dense structure High proportion of air space None of these High specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Water Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ Water Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Stefan-Boltzman's None of these Wien's displacement Planck's Stefan-Boltzman's None of these Wien's displacement Planck's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Both A & B Lower capacity Lower economy Higher economy Both A & B Lower capacity Lower economy Higher economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall Material of the wall Temperature difference between the two surfaces of the wall Area of the wall perpendicular to heat flow Thickness of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? > 1 < 1 None of these 1 > 1 < 1 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
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