The three applications of ventilation usually concern:
What are the different methods of ventilation used to control potentially
a. General ventilation.
b. Dilution ventilation.
d. All of the above.
Which method of ventilation actually reduces the concentration of the
contaminant or hazardous material before it reaches the worker's breathing
a. Local exhaust.
d. b and c.
Local exhaust ventilation is best defined as:
a. Capturing and removing the contaminant near its source or point of
b. Preventing the release of the contaminant into the workspace.
a and b
d. Partially removing the total amount of hazardous material released in the