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.
A solar cell converts the sunlight directly into __________ energy. ...
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Which of the following type of bonding is strongly directional in solids. ...
Absolute zero pressure can be attained at a temperature of ...
Annealing of white cast iron produces __________ iron. ...