Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection only Forced convection and conduction Conduction only Free and forced convection Forced convection only Forced convection and conduction Conduction only Free and forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by Painting the surface black Painting the surface white (with aluminium paint) Roughening the surface Giving the surface a mirror finish Painting the surface black Painting the surface white (with aluminium paint) Roughening the surface Giving the surface a mirror finish ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation energy is emitted by all the substances, which are above none of the listed here 100°C 0°C 0°K none of the listed here 100°C 0°C 0°K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & polished White & rough Black & polished Black & rough White & polished White & rough Black & polished Black & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Both A and B Wall or skin friction Form friction Turbulent flow Both A and B Wall or skin friction Form friction Turbulent flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? > 1 1 < 1 None of these > 1 1 < 1 None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS