All of the following alloying elements of steel increases...
All of the following alloying elements of steel increases hardness but sacrifice ductility, except
nickel
vanadium
molybdenum
chromium
Correct answer is A
No explanation has been provided for this answer.
Sudden fall of atmospheric pressure by a large amount is an indication of the ...
A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 . ...
Absolute zero pressure can be attained at a temperature of ...
Which of the following is not an explosive? ...
Maximum permissible air velocity in pipelines is about __________ metre/second. ...