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 An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m²). The critical thickness of insulation will be 160 mm 25 mm 800 mm 40 mm 160 mm 25 mm 800 mm 40 mm ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be black when (Where a = absorptivity, p = reflectivity, X = transmissivity.) P= 1, T = 0 and a = 0 X = 0, a + p = 0 P = 0, x = 1 and a = 0 P = 0, x = 0 and a = 1 P= 1, T = 0 and a = 0 X = 0, a + p = 0 P = 0, x = 1 and a = 0 P = 0, x = 0 and a = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Unit of thermal conductivity in M.K.S. units is K cal m/hr m² °C K calm/hr °C K cal/kg m² °C K cal/hr m² °C K cal m/hr m² °C K calm/hr °C K cal/kg m² °C K cal/hr m² °C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Upto the critical radius of insulation, Added insulation will increase heat loss Added insulation will decrease heat loss Convective heat loss will be less than conductive heat loss Heat flux will decrease Added insulation will increase heat loss Added insulation will decrease heat loss Convective heat loss will be less than conductive heat loss Heat flux will decrease ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to Grashoff number Biot number Stanton number Peclet number Grashoff number Biot number Stanton number Peclet number ANSWER DOWNLOAD EXAMIANS APP
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