Which method of ventilation is preferred and more economical?
Which is correct?
a. General ventilation is a system to flush a workspace, a room, or an entire
building by supplying and exhausting a large volume of air throughout the
b. General ventilation can only be achieved by artificial means.
a and b.
d. General ventilation is quite effective in removing large volumes of heated air
or in removing low decentralized sources.
Which type of general ventilation provides the best results in most modern
buildings in which industrial operations are conducted?
Combination of natural and mechanical.
d. None of the above.
Natural general ventilation means that workspaces or buildings may be ventilated
d. a and b.