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1. What is the primary psychophysical theory that explains the detection
of odors?
A) Signal detection theory
B) Odor adaptation theory
C) Dual-process theory
D) Lock and key theory
Answer: D) Lock and key theory
Rationale: The lock and key theory suggests that odors are detected when
odorant molecules fit into specific receptor sites in the olfactory system,
similar to a key fitting into a lock.
2. Which equipment is commonly used for measuring the concentration of
airborne odorants?
A) Gas chromatograph
B) Olfactometer
C) Spectrophotometer
D) Anemometer
Answer: B) Olfactometer
Rationale: An olfactometer is specifically designed to measure the
intensity and concentration of odors and is a standard tool in olfactory
research and odor control studies.
3. What chemical compound is often used for neutralizing sulfur-based
odors?
A) Sodium bicarbonate
B) Chlorine dioxide
C) Activated carbon
D) Ozone
Answer: B) Chlorine dioxide
Rationale: Chlorine dioxide is effective in oxidizing sulfur compounds,
which are common sources of odors, thereby neutralizing the unpleasant
smell.
4. In the context of odor control, what is the purpose of a biofilter?
A) To capture particulate matter
B) To neutralize chemical odors
C) To decompose organic odors biologically
D) To filter out inorganic compounds
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