Construction Techniques in Landscape Architecture: A Comprehensive Guide for BArch Students

Question 1

Which factor is most crucial for ensuring the structural stability of a retaining wall?

Accepted Answer

The soil conditions behind the wall

Answer

The mass of the wall itself

Answer

The height of the wall

Answer

The presence of vegetation on top of the wall

Question 2

Which material is not commonly used in hardscaping projects?

Accepted Answer

Glass

Answer

Concrete

Answer

Asphalt

Answer

Aggregate

Question 3

What is the main purpose of grading in landscape construction?

Accepted Answer

To improve drainage and prevent erosion

Answer

To create a level surface for construction

Answer

To enhance the aesthetic appeal of the landscape

Answer

To prepare the site for planting

Question 4

What is the primary function of a retaining wall in landscape architecture?

Accepted Answer

To support soil on slopes and prevent erosion

Answer

To provide seating or other functional elements

Answer

To create a boundary between different areas

Answer

To improve drainage

Question 5

What is the key difference between reinforced and unreinforced concrete?

Accepted Answer

Reinforced concrete contains steel bars for added strength

Answer

Unreinforced concrete is more durable than reinforced concrete

Answer

Unreinforced concrete is more resistant to cracking than reinforced concrete

Answer

There is no difference between reinforced and unreinforced concrete

Question 6

What is the average lifespan of asphalt paving?

Accepted Answer

15-20 years

Answer

5-10 years

Answer

10-15 years

Answer

20-25 years

Question 7

Which is not a type of drainage system commonly used in landscape architecture?

Accepted Answer

Irrigation

Answer

Surface drainage

Answer

Subsurface drainage

Answer

Grade control

Question 8

What is the primary purpose of a geogrid in landscape construction?

Accepted Answer

To reinforce soil and prevent erosion

Answer

To improve drainage

Answer

To provide a base for paving

Answer

To create a temporary surface for construction

Question 9

What is the primary purpose of a drainage system in landscape design?

Accepted Answer

Remove excess water

Answer

Prevent erosion

Answer

Improve soil fertility

Answer

Support vegetation growth

Question 10

Which of the following is NOT a commonly used method for grading a landscape?

Accepted Answer

Scarification

Answer

Cut and fill

Answer

Leveling

Answer

Terracing

Question 11

Which drainage technique involves the use of perforated pipes?

Accepted Answer

French drains

Answer

Swales

Answer

Cisterns

Answer

Bioretention basins

Question 12

What is the primary purpose of soil compaction in landscape construction?

Accepted Answer

Increase soil density

Answer

Reduce water infiltration

Answer

Improve soil aeration

Answer

Support plant growth

Question 13

In hardscaping, which of the following materials is less commonly used?

Accepted Answer

Fabric

Answer

Stone

Answer

Concrete

Answer

Wood

Question 14

What is the primary function of a retaining wall?

Accepted Answer

To support soil and prevent erosion

Answer

To establish a vertical boundary

Answer

To enhance privacy

Answer

To direct water flow

Question 15

What is the primary objective of a landscape master plan?

Accepted Answer

To guide the design and development of a landscape

Answer

To ensure compliance with building regulations

Answer

To estimate the cost of a landscape project

Answer

To create a detailed planting list

Question 16

French drains primarily serve which purpose?

Accepted Answer

To facilitate the removal of excess water from the soil

Answer

To enhance soil fertility

Answer

To mitigate soil erosion

Answer

To attract wildlife

Question 17

Which type of hardscaping material is generally regarded as the most durable?

Accepted Answer

Concrete

Answer

Brick

Answer

Wood

Answer

Gravel

Question 18

In drainage design, what is the minimum slope recommended for a drainage swale?

Accepted Answer

1%

Answer

2%

Answer

3%

Answer

4%

Question 19

Permeable pavers offer several advantages. Which of the following is a key benefit?

Accepted Answer

They facilitate water infiltration into the soil

Answer

They are more cost-effective than concrete

Answer

They enhance aesthetic appeal

Answer

They simplify installation

Question 20

Retaining walls primarily serve which purpose in landscape construction?

Accepted Answer

To retain soil and prevent erosion

Answer

To enhance privacy

Answer

To redirect water flow

Answer

To create elevated garden beds

Question 21

Which of the following materials is commonly used as a soil amendment?

Accepted Answer

Compost

Answer

Mulch

Answer

Sand

Answer

Gravel

Question 22

Geotextile fabrics are commonly used in landscape construction. What is their primary function?

Accepted Answer

To separate and stabilize different soil layers

Answer

To enhance soil fertility

Answer

To retain water in the soil

Answer

To suppress weed growth