CERTIFIED OCCUPANCY SPECIALIST
CERTIFICATION EVALUATION EXAMS 2026
QUESTIONS WITH ANSWERS
◉ What faulty wine aroma can be caused by the metabolism of sorbic
acid via lactic acid bacteria. Answer: geranium
◉ What is the typical pH range found in table wines? Answer: 2.9- 3.9
◉ What wine fault can occur as a result of Brettanomyces? Answer:
Sweaty or horse-like odors
◉ Which wine fault can lead to the aroma of rotten eggs? Answer:
Hydrogen Sulfide
◉ In the United States, wine with more than 10 ppm of this compound
must have a warning label. Answer: sulfites
◉ What type of molecule that results from the joining of an acid and an
alcohol? Answer: esters
,◉ What wine fault can occur as a result of sulfur compounds? Answer:
mercaptan
◉ What two compounds combine to create "ascensence?" Answer:
Acetic Acid & Ethyl Acetate
◉ What is a wine diamond? Answer: A small particle created via the
crystallization of tartaric acid
◉ Which of the following phenolic compounds is responsible for the
bitter taste and drying textural sensation found in many red wines?
Answer: Tannins
◉ What aroma can be caused by an excess of ethyl acetate? Answer:
Fingernail Polish Remover
◉ Which of the following is the most prevalent type of acid found in
both vinifera grapes and wine? Answer: tartaric acid
◉ Which of the following compounds gives red wines their red, blue, or
purple hues? Answer: anthocyanins
◉ What is methyl alcohol? Answer: A secondary alcohol produced via
fermentation
,◉ Which of the following compounds could cause a wine to have more
weight and viscosity? Answer: ...
◉ Which of the following wine odors can occur due to prolonged
contact with dead yeast cells? Answer: Leesy
◉ Which of the following compounds is responsible for cork taint?
Answer: tca
◉ Climate Answer: refers to the historical, average weather of a certain
place, or what is expected to happen long-term.
◉ Weather Answer: is the actual meteorological conditions forecast in
the short-term, as well as what actually occurs.
◉ Cycle of the Vine Answer: winter dormancy
shoot & leaf growth
photosynthesis begins
flowering
berry set
versasion
physiological maturity
, harvest
◉ bacterial faults Answer: acetic acid
butyric acid
geranium
◉ yeast faults Answer: pronounced odor of lees
brettanomyces
◉ oxidative faults Answer: acetaldehyde
browning
◉ sulfur fault Answer: mercaptan
◉ mold fault Answer: cork taint
◉ flavanols Answer: yellow pigment found in white wines
◉ Vanillin Answer: An aromatic compound found in oak barrels.
◉ Reservatrol Answer: a compound found in wine believed to be
beneficial to human health
CERTIFICATION EVALUATION EXAMS 2026
QUESTIONS WITH ANSWERS
◉ What faulty wine aroma can be caused by the metabolism of sorbic
acid via lactic acid bacteria. Answer: geranium
◉ What is the typical pH range found in table wines? Answer: 2.9- 3.9
◉ What wine fault can occur as a result of Brettanomyces? Answer:
Sweaty or horse-like odors
◉ Which wine fault can lead to the aroma of rotten eggs? Answer:
Hydrogen Sulfide
◉ In the United States, wine with more than 10 ppm of this compound
must have a warning label. Answer: sulfites
◉ What type of molecule that results from the joining of an acid and an
alcohol? Answer: esters
,◉ What wine fault can occur as a result of sulfur compounds? Answer:
mercaptan
◉ What two compounds combine to create "ascensence?" Answer:
Acetic Acid & Ethyl Acetate
◉ What is a wine diamond? Answer: A small particle created via the
crystallization of tartaric acid
◉ Which of the following phenolic compounds is responsible for the
bitter taste and drying textural sensation found in many red wines?
Answer: Tannins
◉ What aroma can be caused by an excess of ethyl acetate? Answer:
Fingernail Polish Remover
◉ Which of the following is the most prevalent type of acid found in
both vinifera grapes and wine? Answer: tartaric acid
◉ Which of the following compounds gives red wines their red, blue, or
purple hues? Answer: anthocyanins
◉ What is methyl alcohol? Answer: A secondary alcohol produced via
fermentation
,◉ Which of the following compounds could cause a wine to have more
weight and viscosity? Answer: ...
◉ Which of the following wine odors can occur due to prolonged
contact with dead yeast cells? Answer: Leesy
◉ Which of the following compounds is responsible for cork taint?
Answer: tca
◉ Climate Answer: refers to the historical, average weather of a certain
place, or what is expected to happen long-term.
◉ Weather Answer: is the actual meteorological conditions forecast in
the short-term, as well as what actually occurs.
◉ Cycle of the Vine Answer: winter dormancy
shoot & leaf growth
photosynthesis begins
flowering
berry set
versasion
physiological maturity
, harvest
◉ bacterial faults Answer: acetic acid
butyric acid
geranium
◉ yeast faults Answer: pronounced odor of lees
brettanomyces
◉ oxidative faults Answer: acetaldehyde
browning
◉ sulfur fault Answer: mercaptan
◉ mold fault Answer: cork taint
◉ flavanols Answer: yellow pigment found in white wines
◉ Vanillin Answer: An aromatic compound found in oak barrels.
◉ Reservatrol Answer: a compound found in wine believed to be
beneficial to human health
