Heat Transfer Which of the following has the highest thermal conductivity ? Air Silver Water Black Air Silver Water Black ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.) X/KA K/Ax KA/x A/Kx X/KA K/Ax KA/x A/Kx ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Natural convection Radiation Conduction Forced convection Natural convection Radiation Conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place From one part of a body to the another part of the same body Both B & C Between two bodies not in physical contact with each other Between two bodies in physical contact with each other From one part of a body to the another part of the same body Both B & C Between two bodies not in physical contact with each other Between two bodies in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vibrations in the tubes of a shell and tube heat exchanger is induced due to the Oscillations in the flow of shell/tube sides fluid Vibrations transmitted through piping and/or supports due to external reasons All of these Flow of fluid on the tube and shell sides Oscillations in the flow of shell/tube sides fluid Vibrations transmitted through piping and/or supports due to external reasons All of these Flow of fluid on the tube and shell sides ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff's law is applicable to Total radiation only Monochromatic radiation only Only volumes and not to surfaces Both A and B Total radiation only Monochromatic radiation only Only volumes and not to surfaces Both A and B ANSWER DOWNLOAD EXAMIANS APP
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