Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Maximum resistance in the series Sum of all resistances Minimum resistance presents in the series Average of all resistances Maximum resistance in the series Sum of all resistances Minimum resistance presents in the series Average of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The unit of heat transfer co-efficient in SI unit is J/M2°K J/m°K W/m°K W/m2°K J/M2°K J/m°K W/m°K W/m2°K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Decreases Increases May increase or decrease, depends on the vacuum Remains constant Decreases Increases May increase or decrease, depends on the vacuum Remains constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Increase pressure None of these Increase temperature Remove condensate Increase pressure None of these Increase temperature Remove condensate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Refract Reflect Absorb or emit Both B & C Refract Reflect Absorb or emit Both B & C 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 Cylinder Sphere Cube Equal for all the three Cylinder Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS