CPP Landscape Design & Installation 3

Question 1

What spacing formula is used to determine the number of plants needed to fill a bed at a specified on-center spacing?

Accepted Answer

Area ÷ (0.866 × spacing²)

Answer

Area ÷ spacing²

Answer

Area × spacing

Answer

Perimeter ÷ spacing

Question 2

Which landscape design principle ensures that the size of elements relates logically to the overall space and to each other?

Accepted Answer

Proportion

Answer

Repetition

Answer

Emphasis

Answer

Sequence

Question 3

During landscape installation, what is the purpose of staking and guying a newly planted tree?

Accepted Answer

To provide temporary wind stability until roots establish

Answer

To promote faster root growth in deep soil

Answer

To maintain a specific branch architecture

Answer

To prevent soil compaction around the root ball

Question 4

Which of the following is the MOST effective strategy for minimizing plant establishment irrigation needs in a new landscape?

Accepted Answer

Selecting plants adapted to the local climate and existing site conditions

Answer

Planting only annuals that complete their lifecycle quickly

Answer

Installing an automated sprinkler system for all planting areas

Answer

Planting only in raised beds with imported soil

Question 5

What is a 'concept plan' in the landscape design process?

Accepted Answer

A preliminary diagram showing design intent, functional zones, and spatial organization

Answer

A detailed planting plan with exact plant species

Answer

A construction document used for contractor bidding

Answer

A maintenance schedule for the completed landscape

Question 6

In the context of low-impact landscape design, what does 'right-of-way' planting primarily consider?

Accepted Answer

Choosing plants suitable for utilities, traffic sight lines, and public access in public strips

Answer

Selecting the tallest plants for visual screening

Answer

Minimizing plant diversity to reduce maintenance

Answer

Prioritizing non-native ornamental species for aesthetics

Question 7

Which soil amendment practice is recommended BEFORE installing a new landscape bed to improve structure and fertility?

Accepted Answer

Incorporating 2–4 inches of compost and tilling to a depth of 8–12 inches

Answer

Adding sand to clay soils to improve drainage

Answer

Applying pre-emergent herbicide throughout the bed

Answer

Compacting the soil surface to stabilize plant installations