Heat Transfer Water always boils when its Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Temperature reaches 100° C Saturated vapour pressure is less than the atmospheric pressure Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Temperature reaches 100° C Saturated vapour pressure is less than the atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. Single pass, fixed tube sheet None of these Three pass, fixed tube sheet U-tube Single pass, fixed tube sheet None of these Three pass, fixed tube sheet U-tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a body is equal to its emissivity for circular bodies under thermal equilibrium none of the listed here at a particular temperature for circular bodies under thermal equilibrium none of the listed here at a particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 0.5 1 5 0.5 1 5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Equal for all the three Sphere Cube Cylinder Equal for all the three Sphere Cube Cylinder ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Vent the non-condensible gases Regulate the vapor flow Create vacuum Arrest the entrained liquid Vent the non-condensible gases Regulate the vapor flow Create vacuum Arrest the entrained liquid ANSWER DOWNLOAD EXAMIANS APP
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