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 SELF-STUDY QUESTIONS
CHAPTER 4.
List two objectives of industrial ventilation.
Q4-1.
b.
An evaporative tank is located in an area with competing air
Q4-2.
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,
Q4-3.
what is the air flow quantity (cfm) into the hood?
Name the five major components of an industrial ventilation
Q4-4.
system.
What is the typical atmospheric dust concentration in grains/thousand
Q4-5.
cubic foot?
(a) 1.0 grains/thousand ft3
(b) 0.05 grains/thousand ft3
(c) 0.005 grains/thousand ft3
Fill in the blanks;
Q4-6.
(a) The
or
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.
4-6
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