Heat Transfer Boiling of milk in an open vessel is an example of __________ boiling. None of these Saturated nucleate Film Sub-cooled None of these Saturated nucleate Film Sub-cooled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Increases Decreases May increase or decrease; depends on the feed Is not affected Increases Decreases May increase or decrease; depends on the feed Is not affected ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time t = 800 s t = 283 s t = 356 s t = 400 s t = 800 s t = 283 s t = 356 s t = 400 s ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) α 1/T α T⁴ αT Independent of T α 1/T α T⁴ αT Independent of T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum absorptivity? Refractory bricks Coal dust Aluminium foil Iron plates Refractory bricks Coal dust Aluminium foil Iron plates ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is 48.7 77.2 71.2 63.8 48.7 77.2 71.2 63.8 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS