Heat and Mass Transfer Metals are good conductors of heat because Their atoms collide frequently Their atoms are relatively far apart They contain free electrons They have high density Their atoms collide frequently Their atoms are relatively far apart They contain free electrons They have high density ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of air with rise in temperature May increase or decrease depending on temperature Increases Decreases Remain constant May increase or decrease depending on temperature Increases Decreases Remain constant ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Upto the critical radius of insulation, Added insulation will decrease heat loss Added insulation will increase heat loss Heat flux will decrease Convective heat loss will be less than conductive heat loss Added insulation will decrease heat loss Added insulation will increase heat loss Heat flux will decrease Convective heat loss will be less than conductive heat loss ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has least value of conductivity? Glass Plastic Air Water Glass Plastic Air Water ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Planck’s law holds good for polished bodies All of these black bodies all coloured bodies polished bodies All of these black bodies all coloured bodies ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer, The better insulation must be put inside One should take into account the steam temperature before deciding as to which insulation is put where The better insulation must be put outside One could place either insulation on either side The better insulation must be put inside One should take into account the steam temperature before deciding as to which insulation is put where The better insulation must be put outside One could place either insulation on either side ANSWER DOWNLOAD EXAMIANS APP
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