The process of direct transmission of heat through a material is known as ______

Which of the following is the lowest part of the blast furnace?

Which of the following is not a property of cast iron?

Which of the following is not a component of packaged air conditioners?

Corrosion of ferrous metals is known as _______

According to the Indian Standards, it is recommended that thermal damping of a wall should not be less than ___

Pyrite is an oxide of iron.

According to Indian Standards, overall thermal transmittance of a wall should not be more than ______ kcal/m2 h deg C.