Heat Transfer Nusselt number is the ratio of the Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid. More than Either more or less than (depending upon the fluid) Equal to Less than More than Either more or less than (depending upon the fluid) Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is used for chilling oil to be dewaxed. U-tube Fixed tube Double pipe Floating head U-tube Fixed tube Double pipe Floating head ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for Investment economy Lower operating costs Steam economy None of these Investment economy Lower operating costs Steam economy None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.85 0.45 0.55 0.35 0.85 0.45 0.55 0.35 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Dowtherm Water Molten sodium Air Dowtherm Water Molten sodium Air ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS