North Carolina Landscape Contractor Examination – Basic
Practice Exam: 200 Questions & Answers with Rationales
Here is a 200-question practice exam for the North Carolina Landscape Contractor Examination
(Basic), designed to reflect the structure and content of the official test. This exam is organized
into the four main knowledge domains covered by the licensing exam, as outlined by the North
Carolina Landscape Contractors' Licensing Board (NCLCLB). Each question is followed by the
correct answer and a detailed rationale to help reinforce key concepts.
Exam Structure: This practice exam follows the official blueprint, covering the three required
sections:
1. General Knowledge (Horticulture, Soils, Erosion Control, and Design)
2. Plant Identification
3. Business and Legal (NC Laws, Rules, and Professional Practice)
---
Section 1: General Knowledge – Horticulture, Soils, & Erosion Control (Questions 1–80)
QUESTION 1
What is the primary purpose of soil organic matter?
A) To provide immediate plant nutrients
B) To increase soil aeration and water-holding capacity
C) To prevent weed growth
D) To decrease soil pH
Correct Answer: B
,Rationale: Organic matter improves soil structure, which increases aeration, water infiltration,
and moisture retention. While it does contribute to nutrient availability through decomposition,
its primary physical benefit is improving the soil's tilth.
QUESTION 2
Which soil type has the highest water-holding capacity?
A) Sand
B) Silt
C) Clay
D) Loam
Correct Answer: C
Rationale: Clay particles are the smallest and have the greatest surface area, allowing them to
hold more water than sand, silt, or loam. This, however, can also lead to poor drainage if not
managed properly.
QUESTION 3
What is the purpose of the Sedimentation Pollution Control Act in North Carolina?
A) To regulate the use of chemical fertilizers
B) To prevent visible sedimentation into lakes and streams
C) To manage stormwater runoff in urban areas
D) To protect groundwater from pesticides
Correct Answer: B
Rationale: The act requires persons conducting land-disturbing activities to take all reasonable
measures to prevent sediment damage to adjoining properties and natural watercourses.
,QUESTION 4
In a typical landscape, where is the "critical root zone" of a tree located?
A) Directly under the trunk
B) Within the drip line of the canopy
C) At the base of the root flare
D) Beyond the drip line of the canopy
Correct Answer: B
Rationale: The critical root zone (CRZ) is generally the area under the tree's canopy, often
extending to the drip line. This zone contains the majority of the tree's absorbing roots and is
crucial for its health.
QUESTION 5
Which of the following is a common characteristic of a plant classified as "shade-tolerant"?
A) Requires full sun for 8+ hours
B) Thrives in low-light conditions under a canopy
C) Has needles instead of broad leaves
D) Is always an evergreen
Correct Answer: B
Rationale: Shade-tolerant plants have adapted to survive and grow in low-light environments,
such as the forest floor, by having more efficient photosynthesis or larger leaf surfaces.
QUESTION 6
What does the term "hardscape" refer to?
A) Woody plants like trees and shrubs
B) Inanimate elements of a landscape
, C) The top layer of organic soil
D) Herbaceous perennial flowers
Correct Answer: B
Rationale: Hardscape includes the solid, non-living landscape materials such as patios,
walkways, retaining walls, and decks, as opposed to "softscape" (plants).
QUESTION 7
What is the primary function of a plant's stomata?
A) To absorb water and minerals
B) To exchange gases and release water vapor
C) To provide structural support
D) To store carbohydrates
Correct Answer: B
Rationale: Stomata are pores on leaves that open to take in carbon dioxide for photosynthesis
and release oxygen and water vapor (transpiration).
QUESTION 8
Which North Carolina law outlines the regulatory requirements for erosion control and gives
authority to the Sedimentation Control Commission?
A) The Clean Water Act
B) The Sedimentation Pollution Control Act (SPCA)
C) The Coastal Area Management Act
D) The Water Use Act
Correct Answer: B
Practice Exam: 200 Questions & Answers with Rationales
Here is a 200-question practice exam for the North Carolina Landscape Contractor Examination
(Basic), designed to reflect the structure and content of the official test. This exam is organized
into the four main knowledge domains covered by the licensing exam, as outlined by the North
Carolina Landscape Contractors' Licensing Board (NCLCLB). Each question is followed by the
correct answer and a detailed rationale to help reinforce key concepts.
Exam Structure: This practice exam follows the official blueprint, covering the three required
sections:
1. General Knowledge (Horticulture, Soils, Erosion Control, and Design)
2. Plant Identification
3. Business and Legal (NC Laws, Rules, and Professional Practice)
---
Section 1: General Knowledge – Horticulture, Soils, & Erosion Control (Questions 1–80)
QUESTION 1
What is the primary purpose of soil organic matter?
A) To provide immediate plant nutrients
B) To increase soil aeration and water-holding capacity
C) To prevent weed growth
D) To decrease soil pH
Correct Answer: B
,Rationale: Organic matter improves soil structure, which increases aeration, water infiltration,
and moisture retention. While it does contribute to nutrient availability through decomposition,
its primary physical benefit is improving the soil's tilth.
QUESTION 2
Which soil type has the highest water-holding capacity?
A) Sand
B) Silt
C) Clay
D) Loam
Correct Answer: C
Rationale: Clay particles are the smallest and have the greatest surface area, allowing them to
hold more water than sand, silt, or loam. This, however, can also lead to poor drainage if not
managed properly.
QUESTION 3
What is the purpose of the Sedimentation Pollution Control Act in North Carolina?
A) To regulate the use of chemical fertilizers
B) To prevent visible sedimentation into lakes and streams
C) To manage stormwater runoff in urban areas
D) To protect groundwater from pesticides
Correct Answer: B
Rationale: The act requires persons conducting land-disturbing activities to take all reasonable
measures to prevent sediment damage to adjoining properties and natural watercourses.
,QUESTION 4
In a typical landscape, where is the "critical root zone" of a tree located?
A) Directly under the trunk
B) Within the drip line of the canopy
C) At the base of the root flare
D) Beyond the drip line of the canopy
Correct Answer: B
Rationale: The critical root zone (CRZ) is generally the area under the tree's canopy, often
extending to the drip line. This zone contains the majority of the tree's absorbing roots and is
crucial for its health.
QUESTION 5
Which of the following is a common characteristic of a plant classified as "shade-tolerant"?
A) Requires full sun for 8+ hours
B) Thrives in low-light conditions under a canopy
C) Has needles instead of broad leaves
D) Is always an evergreen
Correct Answer: B
Rationale: Shade-tolerant plants have adapted to survive and grow in low-light environments,
such as the forest floor, by having more efficient photosynthesis or larger leaf surfaces.
QUESTION 6
What does the term "hardscape" refer to?
A) Woody plants like trees and shrubs
B) Inanimate elements of a landscape
, C) The top layer of organic soil
D) Herbaceous perennial flowers
Correct Answer: B
Rationale: Hardscape includes the solid, non-living landscape materials such as patios,
walkways, retaining walls, and decks, as opposed to "softscape" (plants).
QUESTION 7
What is the primary function of a plant's stomata?
A) To absorb water and minerals
B) To exchange gases and release water vapor
C) To provide structural support
D) To store carbohydrates
Correct Answer: B
Rationale: Stomata are pores on leaves that open to take in carbon dioxide for photosynthesis
and release oxygen and water vapor (transpiration).
QUESTION 8
Which North Carolina law outlines the regulatory requirements for erosion control and gives
authority to the Sedimentation Control Commission?
A) The Clean Water Act
B) The Sedimentation Pollution Control Act (SPCA)
C) The Coastal Area Management Act
D) The Water Use Act
Correct Answer: B
