Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always ∞ > 1 < 1 1 ∞ > 1 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.6 0.4 0.8 0.2 0.6 0.4 0.8 0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Decrease May increase or decrease; depends on the pressure Increase Remain unchanged Decrease May increase or decrease; depends on the pressure Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is 120.36 2.36 4.36 Dependent on NRe only 120.36 2.36 4.36 Dependent on NRe only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The value of Stefan-Boltazman constant in SI unit is 5.6697 x 10-8W/m².°K4 0.1714 x 10-8W/m².°K4 0.1714 x 10-8kcal/m². °K4 5.6697 x 10-8kcal/m² . °K4 5.6697 x 10-8W/m².°K4 0.1714 x 10-8W/m².°K4 0.1714 x 10-8kcal/m². °K4 5.6697 x 10-8kcal/m² . °K4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum absorptivity? Coal dust Aluminium foil Iron plates Refractory bricks Coal dust Aluminium foil Iron plates Refractory bricks ANSWER DOWNLOAD EXAMIANS APP
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