List two objectives of industrial ventilation.
An evaporative tank is located in an area with competing air
currents. What would be the recommended capture velocity if the
design information was not available?
If the tank hood in No. 2 above has an open area 3 ft by 2 ft,
what is the air flow quantity (cfm) into the hood?
Name the five major components of an industrial ventilation
What is the typical atmospheric dust concentration in grains/thousand
(a) 1.0 grains/thousand ft3
(b) 0.05 grains/thousand ft3
(c) 0.005 grains/thousand ft3
Fill in the blanks;
velocity is the velocity of the air into
the hood that is required to remove the contamination.
(b) To measure velocity across the face of the hood a minimum of
measurements are required for a rectangular hood and
measurements for a round opening hood.