Chromium molybdenum steel cannot be welded using ________...
Chromium molybdenum steel cannot be welded using __________ welding.
thermit
electrical resistance
oxy-acetylene
any of these
Correct answer is B
No explanation has been provided for this answer.
Energy of the sun arises mainly from __________ reactions. ...
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Which of the following fastening devices has a head at one end and a nut fitted to the other ? ...
Machinability of hard alloys and tool steels is improved by ...