Correct answer
D. Both B. and C.
Explanation
The correct answer is Both B. and C..
The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an ________ thermocouple?
Specific speed of a centrifugal pump relates it with another pump having the________?
Cementite is in the lamellar form in the ________ phase of steel?
For a turbine agitated and baffled tank, operating at low Reynold’s number (based on impeller diameter), the power number (Np) varies with NRe as________?
Alcohol is produced by the________?
Which is the stable form of silica below 870°C?