Heat Transfer Which of the following has the highest thermal conductivity ? Water Silver Black Air Water Silver Black Air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 37 32 45 50 37 32 45 50 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 The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Wien's displacement Planck's None of these Stefan-Boltzman's Wien's displacement Planck's None of these Stefan-Boltzman's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? White paint Black paint Grey paint Yellow paint White paint Black paint Grey paint Yellow paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator is not influenced much by the rate of heat transfer boiling point elevations temperature of the feed ratio of the weight of the thin liquor to thick liquor rate of heat transfer boiling point elevations temperature of the feed ratio of the weight of the thin liquor to thick liquor ANSWER DOWNLOAD EXAMIANS APP
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