Correct answer
A. 7
Explanation
The correct answer is 7.
Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________?
In a fluidised bed reactor________?
In case of heat transfer by conduction in a hollow cylinder, ________ mean area is used to calculate the heat transfer rate?
The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ________ fluid?
Chrome magnesite brick is not used for lining the________?
Participation of ________ is involved in the occurrence of a chemical reaction?