Heat and Mass Transfer Total emissivity of polished silver compared to black body is Very much lower More or less same Same Higher Very much lower More or less same Same Higher ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Temperature of steam at around 540°C can be measured by None of these Thermometer Thermocouple Thermistor None of these Thermometer Thermocouple Thermistor ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h₁, h₂ and h₃ respectively. The average heat transfer coefficient for the cube is 1/h₁ + 1/h₂ + 1/h₃ None of these (h₁.h₂.h₃)1/3 h₁ + h₂ + h₃ 1/h₁ + 1/h₂ + 1/h₃ None of these (h₁.h₂.h₃)1/3 h₁ + h₂ + h₃ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The emissive power of a body depends upon its Wave length All of these Temperature Physical nature Wave length All of these Temperature Physical nature ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The insulation ability of an insulator with the presence of moisture would Increase May increase/decrease depending on temperature and thickness of insulation Decrease Remain unaffected Increase May increase/decrease depending on temperature and thickness of insulation Decrease Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat exchangers, degree of approach is defined as the difference between temperatures of Hot medium outlet and cold water inlet Hot medium inlet and outlet Hot medium outlet and cold water outlet Cold water inlet and outlet Hot medium outlet and cold water inlet Hot medium inlet and outlet Hot medium outlet and cold water outlet Cold water inlet and outlet ANSWER DOWNLOAD EXAMIANS APP
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