63) The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number)n, where n is equal to
Answer is:
-1/3
Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers
Answer is:
all of these
Explanation:
Free convection flow depends on
* density
* coefficient of viscosity
* gravitational force
Answer is:
above which a liquid will remain a liquid
Explanation:
The critical pressure of a liquid is the pressure above which a liquid will remain a liquid.
Answer is:
from one particle of the body to another without the actual motion of the particles
Answer is:
all of the above
Explanation:
Thermal diffusivity of a substance is
* directly proportional to the thermal conductivity
* inversely proportional to density of substance
* inversely proportional to specific heat