Heat and Mass Transfer The radiation emitted by a black body is known as Total radiation Black radiation Full radiation All of these Total radiation Black radiation Full radiation All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Planck’s law holds good for black bodies All of these all coloured bodies polished bodies black bodies All of these all coloured bodies polished bodies ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. Minimum energy None of these Both (A) and (B) Maximum energy Minimum energy None of these Both (A) and (B) Maximum energy ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Regenerator type Counter flow type Parallel flow type Cross flow type Regenerator type Counter flow type Parallel flow type Cross flow type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In free convection heat transfer transition from laminar to turbulent flow is governed by the critical value of the Reynold's number Reynold's number, Grashoff's number Grashoff's number Prandtl number, Grashoff's number Reynold's number Reynold's number, Grashoff's number Grashoff's number Prandtl number, Grashoff's number ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Black body Brilliant white polished body Red hot body Grey body Black body Brilliant white polished body Red hot body Grey body ANSWER DOWNLOAD EXAMIANS APP
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