Heat Transfer Water always boils when its Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Vapour pressure equals 76 cm of Hg ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids Decreases First increases upto a certain temperature and then becomes constant Increases Remains same Decreases First increases upto a certain temperature and then becomes constant Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporator tubes are generally Horizontal Random Inclined Vertical Horizontal Random Inclined Vertical ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate. Arithmetic Logarithmic Geometric Either A, B or C Arithmetic Logarithmic Geometric Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When vaporisation takes place through a blanketting film of gas, the phenomenon is termed as __________ boiling. pool none of the listed here film transition pool none of the listed here film transition ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and 0 0 and 1 1 and ? 0 and 0.5 1 and 0 0 and 1 1 and ? 0 and 0.5 ANSWER DOWNLOAD EXAMIANS APP
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