Grape
A common way to classify wine is based on the amount of ethanol (alcohol). Which of the ethanol
percentages given below is within the legal definition of a dessert or fortified wine?
a. 5%
b. 10%
c. 13%
d. 18%
e. none of the above Correct Answer: d
In the US, alcohol is taxed by both the Federal government and individual states. Which of the following
is true of wine taxation in the US?
a.The Federal Tax rate is the same for all wines
b. The Federal Tax is lower for sparkling wines than table wines
c. The Federal Tax increases with alcohol content
d. The State alcohol tax is highest in California
e. None of the above Correct Answer: c
Which of the following are important dark (red/purple/black) cultivars of V. vinifera?
a. Cabernet Sauvignon and Zinfandel
b. Merlot and Chardonnay
c. Semillon and Pinot Noir
d. All of the above (i.e., A, B, and C)
e. None of the above Correct Answer: a
During fermentation yeast converts sugar to which of the following main products?
a. Tartaric acid and tannins
b. Tartaric acid and malic acid
c. Ethanol and carbon dioxide (CO2)
d. Ethanol and methanol
,e. None of the above Correct Answer: c
In this sketch of a grafted grapevine, where is the scion?
a. The part of the vine labeled (A).
b. The part of the vine labeled (B).
c. The area of the vine labeled (C).
d. Both (A) and (B)
e. None of the above Correct Answer: a
Which of the following is the word used to describe the onset of ripening in the berry,
when sugars accumulate, the berry softens, and if it is a colored variety, the berries
begin to turn color?
a. Dormancy
b. Bud break
c. Bourgeonnement
d. Veraison
e. None of the above Correct Answer: d
Which is true of vine pruning?
a. The best time to prune vines is in late spring
b. The best time to prune vines is in early summer
c. If possible, it is best never to prune grapevines
d. The number of buds left after pruning determines the number of fruit clusters
the vine will have the next year
e. None of the above Correct Answer: d
Tannins contribute which of the following sensory properties to grapes and wines?
a. Astringency and Bitterness
b. Fruity Aromas
c. Sweetness and Sourness
,d. Saltiness
e. None of the above Correct Answer: a
Bilateral Cordon, VSP, Lyre and T-top are examples of:
a. Vine trellising patterns
b. Fermentation tanks
c. Pruning methods
d. Rootstocks
e. None of the above Correct Answer: a
For most winegrape varieties the colored pigments occur where in the berry?
a. Pulp
b. Rachis
c. Seeds
d. Skins
e. None of the above Correct Answer: d
Which one of the following countries has seen significant increases in grape and
wine production since approximately 2000?
a. Spain
b. China
c. Italy
d. France
e. None of the above Correct Answer: b
Which of the following is a term used to describe the amount of sugar in grapes?
a. Cinerea
b. Must
, c. Brix
d. Pomace
e. None of the above Correct Answer: c
Which strong-tasting grape is not commonly used for high quality wine, but is often
used for juice, jellies and jams?
a. V. californica
b. V. rupestris
c. V. labrusca (cultivar Concord)
d. V. vinifera (cultivar Chardonnay)
e. None of the above Correct Answer: c
Which of the following is the main organism that is used to ferment juice to wine?
a. Acetobacter
b. Leuconostoc oenos
c. Oenococcus oeni
d. Saccharomyces cerevisiae
e. None of the above Correct Answer: d
The glassy-winged sharpshooter is problematic for vineyards because:
a. The insect larvae feed on developing grapes
b. The insect spreads bacteria that cause Pierce's
disease
c. The adult insects devour grapevine leaves
d. The insect attracts flocks of birds, which then eat the grapes
e. None of the above Correct Answer: b
Which of the following is the name of an American insect that lives in the soil and
devastated European vineyards when it was accidentally introduced in Europe:
a. Brettanomyces
A common way to classify wine is based on the amount of ethanol (alcohol). Which of the ethanol
percentages given below is within the legal definition of a dessert or fortified wine?
a. 5%
b. 10%
c. 13%
d. 18%
e. none of the above Correct Answer: d
In the US, alcohol is taxed by both the Federal government and individual states. Which of the following
is true of wine taxation in the US?
a.The Federal Tax rate is the same for all wines
b. The Federal Tax is lower for sparkling wines than table wines
c. The Federal Tax increases with alcohol content
d. The State alcohol tax is highest in California
e. None of the above Correct Answer: c
Which of the following are important dark (red/purple/black) cultivars of V. vinifera?
a. Cabernet Sauvignon and Zinfandel
b. Merlot and Chardonnay
c. Semillon and Pinot Noir
d. All of the above (i.e., A, B, and C)
e. None of the above Correct Answer: a
During fermentation yeast converts sugar to which of the following main products?
a. Tartaric acid and tannins
b. Tartaric acid and malic acid
c. Ethanol and carbon dioxide (CO2)
d. Ethanol and methanol
,e. None of the above Correct Answer: c
In this sketch of a grafted grapevine, where is the scion?
a. The part of the vine labeled (A).
b. The part of the vine labeled (B).
c. The area of the vine labeled (C).
d. Both (A) and (B)
e. None of the above Correct Answer: a
Which of the following is the word used to describe the onset of ripening in the berry,
when sugars accumulate, the berry softens, and if it is a colored variety, the berries
begin to turn color?
a. Dormancy
b. Bud break
c. Bourgeonnement
d. Veraison
e. None of the above Correct Answer: d
Which is true of vine pruning?
a. The best time to prune vines is in late spring
b. The best time to prune vines is in early summer
c. If possible, it is best never to prune grapevines
d. The number of buds left after pruning determines the number of fruit clusters
the vine will have the next year
e. None of the above Correct Answer: d
Tannins contribute which of the following sensory properties to grapes and wines?
a. Astringency and Bitterness
b. Fruity Aromas
c. Sweetness and Sourness
,d. Saltiness
e. None of the above Correct Answer: a
Bilateral Cordon, VSP, Lyre and T-top are examples of:
a. Vine trellising patterns
b. Fermentation tanks
c. Pruning methods
d. Rootstocks
e. None of the above Correct Answer: a
For most winegrape varieties the colored pigments occur where in the berry?
a. Pulp
b. Rachis
c. Seeds
d. Skins
e. None of the above Correct Answer: d
Which one of the following countries has seen significant increases in grape and
wine production since approximately 2000?
a. Spain
b. China
c. Italy
d. France
e. None of the above Correct Answer: b
Which of the following is a term used to describe the amount of sugar in grapes?
a. Cinerea
b. Must
, c. Brix
d. Pomace
e. None of the above Correct Answer: c
Which strong-tasting grape is not commonly used for high quality wine, but is often
used for juice, jellies and jams?
a. V. californica
b. V. rupestris
c. V. labrusca (cultivar Concord)
d. V. vinifera (cultivar Chardonnay)
e. None of the above Correct Answer: c
Which of the following is the main organism that is used to ferment juice to wine?
a. Acetobacter
b. Leuconostoc oenos
c. Oenococcus oeni
d. Saccharomyces cerevisiae
e. None of the above Correct Answer: d
The glassy-winged sharpshooter is problematic for vineyards because:
a. The insect larvae feed on developing grapes
b. The insect spreads bacteria that cause Pierce's
disease
c. The adult insects devour grapevine leaves
d. The insect attracts flocks of birds, which then eat the grapes
e. None of the above Correct Answer: b
Which of the following is the name of an American insect that lives in the soil and
devastated European vineyards when it was accidentally introduced in Europe:
a. Brettanomyces
