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.
Wrought iron is never shaped by ...
Friction factor for fluid flow in pipe does not depend upon the ...
Electrical conductivities of semi-conductors are of the order of __________ ohm/cm. ...
In extrusion of metals, which of the following statements is true ? ...
A solar cell converts the sunlight directly into __________ energy. ...