With increase in porosity, the thermal conductivity of a solid substan – McqOptions

MCQOPTIONS

1.	With increase in porosity, the thermal conductivity of a solid substance__________________?
A.	Increases
B.	Decreases
C.	Remains unchanged
D.	May increase or decrease; depends on the solid
Answer» C. Remains unchanged

Discussion

No Comment Found

Related MCQs

While the total emissivity of a perfect black body is unity, the same for a real body is__________________?
With increase in porosity, the thermal conductivity of a solid substance__________________?
With increase in temperature, the thermal conductivity of fresh lubricating oil ___________________?
With increase in temperature, the thermal conductivity of most liquids_________________?
With increase in temperature, the thermal conductivity of a gas ___________________?
With increase in temperature, the thermal conductivity of non-metallic amorphous solids_________________?
With increase in temperature, the total emissivity of conductors____________________?
With increase in temperature, the thermal conductivity of steel___________________?
With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer ?
With the increase of temperature, the Col-burn jH factor_____________________?