Heat Transfer What is the unit of thermal conductivity ? Kcal/hr. m² °C Kcal/hr. °C Kcal/hr.m.°C Kcal/hr.m Kcal/hr. m² °C Kcal/hr. °C Kcal/hr.m.°C Kcal/hr.m ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Only volumes and not to surfaces Total radiation only Both A and B Monochromatic radiation only Only volumes and not to surfaces Total radiation only Both A and B Monochromatic radiation only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law. Temperature of the body Wavelength of radiation None of these Nature of the body Temperature of the body Wavelength of radiation None of these Nature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Air Molten sodium Water Dowtherm Air Molten sodium Water Dowtherm ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always 1 ∞ < 1 > 1 1 ∞ < 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Pressure Viscosity Density Corrosiveness & fouling characteristics Pressure Viscosity Density Corrosiveness & fouling characteristics ANSWER DOWNLOAD EXAMIANS APP
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