Core Competency Exam Prep: 100
Landscape Maintenance Scenarios,
Solutions, and Regulatory Rationales
(QAC Category B)
Q1. What are the two main classifications of weeds?
A) Annuals & Biennials
B) Dicots & Monocots
C) Broadleaves & Grasses
D) Perennials & Annuals
Answer: B) Dicots & Monocots
Rationale: Weeds are classified botanically into monocots (grasses
and sedges) and dicots (broadleaf weeds). Dicots produce two
seedling leaves (cotyledons), while monocots produce one.
Q2. What is the definition of a dicot weed?
A) Narrow leaves with parallel veins
B) Broad leaves with netted veins, produces two seedling leaves
C) Fibrous root system only
D) Single seed leaf
Answer: B) Broad leaves with netted veins, produces two
seedling leaves
,Rationale: Dicot weeds are broadleaves that produce two seedling
leaves (cotyledons). They have netted or branching veins,
distinguishing them from monocots.
Q3. Which of the following are parasitic dicots?
A) Crabgrass and dandelion
B) Mistletoe and dodder
C) Chickweed and plantain
D) Clover and bindweed
Answer: B) Mistletoe and dodder
Rationale: Mistletoe and dodder are parasitic dicots that attach to
host plants and extract nutrients. They are not capable of
independent survival.
Q4. Why are perennial weeds difficult to control?
A) They only reproduce by seeds
B) They can reproduce from vegetative organs like rhizomes,
stolons, and tubers
C) They are resistant to all herbicides
D) They only grow in winter
Answer: B) They can reproduce from vegetative organs like
rhizomes, stolons, and tubers
,Rationale: Perennial weeds are difficult to control because they
can reproduce from vegetative organs such as rhizomes, stolons,
tubers, and bulbs, allowing them to regrow even after the top
growth is removed.
Q5. Which of the following is a monocot weed?
A) Dandelion
B) Crabgrass
C) Clover
D) Plantain
Answer: B) Crabgrass
Rationale: Crabgrass is a monocot (grass) with narrow leaves and
parallel veins. Dandelion, clover, and plantain are dicots (broadleaf
weeds).
Q6. Which of the following is a broadleaf (dicot) weed?
A) Annual bluegrass
B) Nutsedge
C) Dandelion
D) Bermudagrass
Answer: C) Dandelion
, Rationale: Dandelion is a broadleaf dicot weed with netted veins.
Annual bluegrass, nutsedge, and Bermudagrass are monocots
(grasses or sedges).
Q7. What is an annual weed?
A) A weed that lives for two years
B) A weed that completes its life cycle in one year or growing
season
C) A weed that lives for more than two years
D) A weed that only grows in summer
Answer: B) A weed that completes its life cycle in one year or
growing season
Rationale: Annual weeds complete their entire life cycle—from
germination to seed production—within one year or growing
season. They reproduce primarily by seeds.
Q8. What is a biennial weed?
A) A weed that completes its life cycle in two years
B) A weed that lives for one year
C) A weed that lives forever
D) A weed that only grows in spring
Answer: A) A weed that completes its life cycle in two years
Landscape Maintenance Scenarios,
Solutions, and Regulatory Rationales
(QAC Category B)
Q1. What are the two main classifications of weeds?
A) Annuals & Biennials
B) Dicots & Monocots
C) Broadleaves & Grasses
D) Perennials & Annuals
Answer: B) Dicots & Monocots
Rationale: Weeds are classified botanically into monocots (grasses
and sedges) and dicots (broadleaf weeds). Dicots produce two
seedling leaves (cotyledons), while monocots produce one.
Q2. What is the definition of a dicot weed?
A) Narrow leaves with parallel veins
B) Broad leaves with netted veins, produces two seedling leaves
C) Fibrous root system only
D) Single seed leaf
Answer: B) Broad leaves with netted veins, produces two
seedling leaves
,Rationale: Dicot weeds are broadleaves that produce two seedling
leaves (cotyledons). They have netted or branching veins,
distinguishing them from monocots.
Q3. Which of the following are parasitic dicots?
A) Crabgrass and dandelion
B) Mistletoe and dodder
C) Chickweed and plantain
D) Clover and bindweed
Answer: B) Mistletoe and dodder
Rationale: Mistletoe and dodder are parasitic dicots that attach to
host plants and extract nutrients. They are not capable of
independent survival.
Q4. Why are perennial weeds difficult to control?
A) They only reproduce by seeds
B) They can reproduce from vegetative organs like rhizomes,
stolons, and tubers
C) They are resistant to all herbicides
D) They only grow in winter
Answer: B) They can reproduce from vegetative organs like
rhizomes, stolons, and tubers
,Rationale: Perennial weeds are difficult to control because they
can reproduce from vegetative organs such as rhizomes, stolons,
tubers, and bulbs, allowing them to regrow even after the top
growth is removed.
Q5. Which of the following is a monocot weed?
A) Dandelion
B) Crabgrass
C) Clover
D) Plantain
Answer: B) Crabgrass
Rationale: Crabgrass is a monocot (grass) with narrow leaves and
parallel veins. Dandelion, clover, and plantain are dicots (broadleaf
weeds).
Q6. Which of the following is a broadleaf (dicot) weed?
A) Annual bluegrass
B) Nutsedge
C) Dandelion
D) Bermudagrass
Answer: C) Dandelion
, Rationale: Dandelion is a broadleaf dicot weed with netted veins.
Annual bluegrass, nutsedge, and Bermudagrass are monocots
(grasses or sedges).
Q7. What is an annual weed?
A) A weed that lives for two years
B) A weed that completes its life cycle in one year or growing
season
C) A weed that lives for more than two years
D) A weed that only grows in summer
Answer: B) A weed that completes its life cycle in one year or
growing season
Rationale: Annual weeds complete their entire life cycle—from
germination to seed production—within one year or growing
season. They reproduce primarily by seeds.
Q8. What is a biennial weed?
A) A weed that completes its life cycle in two years
B) A weed that lives for one year
C) A weed that lives forever
D) A weed that only grows in spring
Answer: A) A weed that completes its life cycle in two years
