Which statement about the operating sequence of an accessory is correct?
a. The operating sequence of one brand of air cleaner is often completely different from that of another
brand.
b. The operating sequence for all accessories is always extremely simple.
c. The operating sequences of similar accessories are often very similar.
d. Every type of humidifier requires that the furnace be producing hot air in order to function.
Question 2
In an electronic air cleaner, the smallest particles in the air are trapped in the _____.
a. pre-filter
b. ionizer section
c. collector section
d. charcoal filter