Machinability of hard alloys and tool steels is improved ...
Machinability of hard alloys and tool steels is improved by
spherodising
annealing
tempering
normalising
Correct answer is B
No explanation has been provided for this answer.
Energy of the sun arises mainly from __________ reactions. ...
Machinability of hard alloys and tool steels is improved by ...
A solar cell converts the sunlight directly into __________ energy. ...
Wrought iron is never shaped by ...
A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 . ...
Which of the following fastening devices has a head at one end and a nut fitted to the other ? ...