Heat Transfer (NRe.NPr)(D/L) is called the __________ number Stanton Graetz None of these Peclet Stanton Graetz None of these Peclet ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by __________ may not necessarily require the presence of a medium none of the listed here radiation natural convection coduction none of the listed here radiation natural convection coduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the temperature of the body only nature of material of body none of the listed here wavelength of monochromatic radiation temperature of the body only nature of material of body none of the listed here wavelength of monochromatic radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids First increases upto a certain temperature and then becomes constant Decreases Remains same Increases First increases upto a certain temperature and then becomes constant Decreases Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not used as a medium for high temperature heating ? dowtherm liquid metal mercury None of the listed here dowtherm liquid metal mercury None of the listed here 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 = 356 s t = 400 s t = 283 s t = 800 s t = 356 s t = 400 s t = 283 s t = 800 s ANSWER DOWNLOAD EXAMIANS APP
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