Correct answer
D. to control SN
Explanation
The correct answer is to control SN.
Maximum percentage of carbon in ferrite is________?
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of________?
Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ________?
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as________?
Cylindrical cams can be classified as________?
Cochran boiler is a________?