Correct answer
B. Aluminium oxide
Explanation
The correct answer is Aluminium oxide.
With increase in the density of silica refractories, its________?
A 2′′ gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is________?
Space time equals the mean residence time________?
Fireclay bricks are not used in the ________?
Heat flow across a hollow sphere of inner radius ‘r1’ and outer radius ‘r2’ is directly proportional to________?
In Newton’s law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass varies as the ________ of its diameter?