Maximum permissible air velocity in pipelines is about __...
Maximum permissible air velocity in pipelines is about __________ metre/second.
5
10
20
40
Correct answer is B
No explanation has been provided for this answer.
Maxwell's thermodynamic relations applies to the ...
Energy of the sun arises mainly from __________ reactions. ...
The product out from a cupola is called ...
Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography. ...
Machinability of hard alloys and tool steels is improved by ...