Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Logarithmic mean area Geometric mean area None of the listed here Arithmetic mean area Logarithmic mean area Geometric mean area None of the listed here Arithmetic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because Cost of equipment is lower There is no mist formation Heat transfer co-efficient are high There is no risk of contamination Cost of equipment is lower There is no mist formation Heat transfer co-efficient are high There is no risk of contamination ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A diathermaneous substance __________ the thermal radiation completely. Transmits Reflects Absorbs None of these Transmits Reflects Absorbs None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The driving potential for the crystal growth during crystallisation is the __________ of the solution. Viscosity Concentration Density Super-saturation Viscosity Concentration Density Super-saturation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Thick walled Having the value of Ao/Ai > 2 Both B and C Thin walled having the value of Ao Ai/< 2 Thick walled Having the value of Ao/Ai > 2 Both B and C Thin walled having the value of Ao Ai/< 2 ANSWER DOWNLOAD EXAMIANS APP
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