Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)³ (ΔT)⁴ √(ΔT) (ΔT)² (ΔT)³ (ΔT)⁴ √(ΔT) (ΔT)² 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 Cylinder Equal for all the three Cube Sphere Cylinder Equal for all the three Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is 11.2 kW/m² 12.0 kW/m² 16.5 kW/m² 14.6 kW/m² 11.2 kW/m² 12.0 kW/m² 16.5 kW/m² 14.6 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Sherwood number Euler number Grashoff number Strouhal number Sherwood number Euler number Grashoff number Strouhal number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam economy in case of a triple effect evaporator will be 1 Between 0 and 1 < 1 > 1 1 Between 0 and 1 < 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation is generally recommended, when the Fuel is cheaply available Evaporation on small scale is to be done Corrosive liquids are to be concentrated Large scale evaporation of liquor is needed Fuel is cheaply available Evaporation on small scale is to be done Corrosive liquids are to be concentrated Large scale evaporation of liquor is needed ANSWER DOWNLOAD EXAMIANS APP
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