Landscape Architect Registration Examination (LARE) β Questions and Answers
Question 1: When should hardscape elements typically be installed relative to planting?
- After all plants are fully grown
- Simultaneously with seeding the lawn
- Before planting, to avoid damaging new plants (Correct answer)
- Only in the final winter month
Correct answer: Before planting, to avoid damaging new plants
Hardscaping first prevents heavy equipment from harming installed plants.
Question 2: Repetition of color, shape, or texture in a landscape primarily achieves what?
- Pest resistance
- Rhythm and visual harmony (Correct answer)
- Higher water bills
- Soil compaction
Correct answer: Rhythm and visual harmony
Repeating elements creates rhythm and ties the design together visually.
Question 3: Which information is typically shown on a grading plan?
- Property boundaries, setback requirements, and zoning classifications only
- Underground utility locations and geotechnical soil test results
- Existing and proposed contour lines, spot elevations, drainage flow arrows, and slopes (Correct answer)
- Plant species lists, soil amendments, and irrigation head locations
Correct answer: Existing and proposed contour lines, spot elevations, drainage flow arrows, and slopes
A grading plan shows existing and proposed contour lines, spot elevations, drainage flow arrows, percent slopes, and key drainage structures to document how a site will be shaped.
Question 4: What does topdressing a lawn mean in turf management?
- Applying a thin layer of compost or sand over the turf surface (Correct answer)
- Raising the mowing height during stress periods
- Overseeding a thin lawn
- Applying fertilizer to the top of grass blades
Correct answer: Applying a thin layer of compost or sand over the turf surface
Topdressing involves spreading a thin layer of compost, sand, or soil mix over an existing lawn to improve soil structure, level the surface, and reduce thatch.
Question 5: What does soil compaction do to plant root development?
- Promotes faster establishment
- Restricts oxygen flow and root penetration, stunting growth (Correct answer)
- Improves water retention for drought tolerance
- Increases nutrient availability
Correct answer: Restricts oxygen flow and root penetration, stunting growth
Compacted soil has reduced pore space, limiting oxygen availability and making it mechanically difficult for roots to penetrate, resulting in shallow, stressed root systems.
Question 6: What is a green roof or vegetated roof and what environmental benefits does it provide?
- Rooftop greenhouse for food production
- Rooftop covered with growing medium and plants; reduces runoff, insulates building, and reduces heat island effect (Correct answer)
- Solar panel system combined with rooftop irrigation
- Green-colored roofing material for heat reflection
Correct answer: Rooftop covered with growing medium and plants; reduces runoff, insulates building, and reduces heat island effect
A green roof supports a layer of growing medium and vegetation on a waterproofed roof structure, capturing rainfall, insulating the building, and reducing urban heat island temperatures.
Question 7: What is the correct sequence in the landscaping design process?
- Construction, site analysis, planting, design
- Site analysis, concept design, final design, construction (Correct answer)
- Final design, site analysis, concept, maintenance
- Planting, grading, site analysis, concept
Correct answer: Site analysis, concept design, final design, construction
Design follows a logical order from analyzing the site to building it.
Question 8: What is 'solar aspect' and why does it matter in landscape site analysis?
- The direction a slope faces, determining sun exposure intensity and duration (Correct answer)
- The brand of solar panels installed
- The reflectivity of hardscape materials
- Average daily sunlight hours recorded at a weather station
Correct answer: The direction a slope faces, determining sun exposure intensity and duration
A south-facing slope receives more intense sun and heat, while north-facing slopes stay cooler and moister, influencing plant selection.
Question 9: Which design element creates depth and draws the eye through a landscape?
- Random plant placement
- Perspective and layering of plant heights (Correct answer)
- Identical spacing for every plant
- Removing all tall plants
Correct answer: Perspective and layering of plant heights
Layering plants from low to tall creates depth and guides the viewer's eye.
Question 10: What percentage of a landscape's water budget can typically be saved by replacing cool-season turf with drought-tolerant plants and mulch?
- Up to 50 to 75 percent water savings (Correct answer)
- Less than 5 percent savings
- About 5 to 10 percent savings
- No meaningful savings
Correct answer: Up to 50 to 75 percent water savings
Replacing irrigated cool-season turf with drought-tolerant plants and mulch can reduce landscape water use by 50 to 75 percent or more, depending on climate and plant choices.
Question 11: Which soil texture has the highest water-holding capacity?
- Sandy soil
- Gravelly soil
- Loamy soil
- Clay soil (Correct answer)
Correct answer: Clay soil
Clay soil has the highest water-holding capacity due to its tiny particle size and large surface area, though this can also lead to poor drainage and aeration.
Question 12: What is a 'rain sensor' or rain shutoff device in a landscape irrigation system?
- A controller that adjusts water pressure based on weather
- A device that automatically suspends irrigation when sufficient rainfall occurs (Correct answer)
- A sensor that activates irrigation when rain is forecast
- A meter that tracks total annual rainfall
Correct answer: A device that automatically suspends irrigation when sufficient rainfall occurs
A rain sensor automatically shuts off the irrigation system when it detects a set amount of rainfall, preventing overwatering and wasting water after natural precipitation.
Question 13: What is the purpose of establishing a budget early in the landscaping process?
- To skip the site analysis step
- To guide material choices and phasing of the project (Correct answer)
- To avoid hiring any contractors
- To eliminate the need for a design plan
Correct answer: To guide material choices and phasing of the project
A budget shapes realistic decisions about scope, materials, and timing.
Question 14: What is 'lien waiver' documentation used for in landscape contracting?
- A zoning waiver allowing landscape work in restricted areas
- A document waiving a contractor's right to increase prices after contract signing
- A warranty disclaimer limiting the contractor's liability for plant mortality
- A document signed by a contractor or subcontractor confirming they have been paid and waiving their right to place a mechanic's lien on the property (Correct answer)
Correct answer: A document signed by a contractor or subcontractor confirming they have been paid and waiving their right to place a mechanic's lien on the property
A lien waiver is a document signed by contractors or suppliers confirming payment receipt, releasing their right to file a mechanic's lien against the property owner's property.
Question 15: What is the purpose of 'layering' in a mixed border?
- Arranging plants by height so each is visible from front to back (Correct answer)
- Burying bulbs in layers only
- Planting all flowers the same height
- Stacking soil in tiers
Correct answer: Arranging plants by height so each is visible from front to back
Layering places shorter plants in front and taller ones behind for full visibility and depth.
Question 16: What is the ideal soil texture for most landscape plantings, balancing drainage and water retention?
- Clay
- Silt
- Sand
- Loam (Correct answer)
Correct answer: Loam
Loam, a balanced mixture of sand, silt, and clay, provides ideal porosity, drainage, and water-holding capacity for most landscape plants.
Question 17: What is the primary function of a dry well in a landscape drainage system?
- To provide a subsurface reservoir that allows collected water to slowly percolate into surrounding soil (Correct answer)
- To pump excess groundwater to a municipal stormwater system
- To filter sediment from surface runoff before it enters underground pipes
- To store harvested rainwater for landscape irrigation use
Correct answer: To provide a subsurface reservoir that allows collected water to slowly percolate into surrounding soil
A dry well is an underground structure designed to temporarily hold stormwater and allow it to gradually infiltrate into the surrounding native soil.
Question 18: What does 'existing grade' refer to in landscape design documents?
- The slope of the driveway
- The quality rating of existing plants
- The current elevation of the ground surface before any grading work begins (Correct answer)
- The condition of existing hardscape
Correct answer: The current elevation of the ground surface before any grading work begins
Existing grade is the natural or previously graded ground elevation documented in a base survey, from which proposed changes are measured.
Question 19: What does 'ET' (evapotranspiration) represent in irrigation scheduling?
- Emergency treatment for overwatered plants
- The combined water loss from soil evaporation and plant transpiration (Correct answer)
- The efficiency rating of a sprinkler head
- The electrical conductivity of irrigation water
Correct answer: The combined water loss from soil evaporation and plant transpiration
Evapotranspiration (ET) represents the total water lost from the landscape through soil evaporation and plant transpiration, used to calculate replacement irrigation needs.
Question 20: What is 'composting' and how does it support sustainable landscape management?
- A chemical process to speed decomposition using synthetic accelerants
- The process of testing soil for contamination before planting
- A water treatment process for gray water reuse in irrigation
- The biological decomposition of organic materials into humus, recycling nutrients back into the landscape (Correct answer)
Correct answer: The biological decomposition of organic materials into humus, recycling nutrients back into the landscape
Composting converts organic landscape waste into nutrient-rich humus that improves soil health, reducing the need for synthetic fertilizers and diverting waste from landfills.
Question 21: What is impervious surface ratio and how does it affect stormwater management compliance?
- Amount of concrete versus stone in a hardscape design
- Required ratio of green space to building footprint
- Percentage of a site covered by impervious surfaces; high ratios increase runoff requiring mitigation (Correct answer)
- Ratio of plant material cost to hardscape cost in a landscape budget
Correct answer: Percentage of a site covered by impervious surfaces; high ratios increase runoff requiring mitigation
Impervious surface ratio measures what percentage of a site is covered by impermeable materials; local regulations often cap this ratio and require stormwater management for high-ratio sites.
Question 22: What is the next operation in the planning phase that the irrigation system designer should do after locating the main water supply line?
- Match the needs of the clients as closely as feasible to the capabilities of the site.
- Examine the region and select the best type of sprinkler.
- Determine whether the water supply is public or private. (Correct answer)
- Divide the GPM capacity of the main water supply by two.
Correct answer: Determine whether the water supply is public or private.
After locating the main water supply line, understanding whether it's connected to a public municipal system or a private well is crucial. This distinction impacts water pressure, flow rates, potential regulations, and future maintenance, all of which are critical factors for designing an efficient and compliant irrigation system.
Question 23: What is 'thatch' in lawn maintenance?
- Compacted soil beneath the root zone
- A layer of accumulated dead and living organic matter between the soil and green grass blades (Correct answer)
- A fungal disease on turf
- Dead leaves on the surface
Correct answer: A layer of accumulated dead and living organic matter between the soil and green grass blades
Thatch forms when organic debris accumulates faster than it decomposes, creating a barrier that restricts water and air movement into the soil.
Question 24: What is the purpose of a 'topographic survey' in landscape design site analysis?
- To map existing grade elevations and slopes across the site (Correct answer)
- To test soil chemistry
- To locate underground utilities
- To identify plant species on site
Correct answer: To map existing grade elevations and slopes across the site
A topographic survey establishes existing elevation contours that inform grading, drainage, and design decisions.
Question 25: What is the term for outdoor flooring that is level with or slightly above grade surrounding a pool?
- Grade-level terrace
- Hardscape apron
- Pool deck (Correct answer)
- Patio surround
Correct answer: Pool deck
A pool deck is the paved surface surrounding a pool, designed to drain water away from the pool edge and provide safe, slip-resistant footing.
Question 26: What is 'efflorescence' on masonry or concrete surfaces?
- The weathering pattern that appears on aged limestone
- White salt deposits that migrate to the surface as water moves through masonry (Correct answer)
- Moss and algae growth on shaded hardscape
- A decorative stain applied to concrete for color
Correct answer: White salt deposits that migrate to the surface as water moves through masonry
Efflorescence is the white, chalky deposit left on masonry and concrete surfaces when water carries soluble salts to the surface and evaporates, leaving the salts behind.
Question 27: What does 'cut and fill' mean in landscape grading operations?
- Removing contaminated topsoil and replacing it with imported clean fill
- Removing existing vegetation and replanting with erosion-resistant species
- Installing drainage trenches and backfilling them with gravel and pipe
- Excavating soil from high areas and relocating it to fill low areas to achieve the desired grade (Correct answer)
Correct answer: Excavating soil from high areas and relocating it to fill low areas to achieve the desired grade
Cut and fill is a grading technique where soil excavated from elevated areas (cut) is moved and compacted into lower areas (fill) to achieve the target finished elevation.
Question 28: What US organization offers the Certified Irrigation Designer (CID) credential?
- EPA WaterSense Program
- ASLA
- Irrigation Association (Correct answer)
- NALP
Correct answer: Irrigation Association
The Irrigation Association offers the Certified Irrigation Designer credential, recognizing professionals with expertise in irrigation system design.
Question 29: Which document records the legal boundaries of a property and is essential to any landscape design project?
- Property survey or plat map (Correct answer)
- Aerial photograph
- Zoning map
- Topographic map
Correct answer: Property survey or plat map
A property survey establishes legal boundaries, easements, and setbacks that constrain where landscape elements can be placed.
Question 30: When creating a base map, why is it important to note existing utilities?
- To increase the property's resale value
- To avoid damaging underground lines during excavation (Correct answer)
- To determine plant color schemes
- To calculate mulch quantities
Correct answer: To avoid damaging underground lines during excavation
Marking utilities prevents costly and dangerous strikes during digging.
Question 31: What is the main advantage of using salvaged or reclaimed materials in hardscape design?
- Eliminates the need for base preparation
- Lower installation costs compared to new materials
- Reduces embodied energy and waste while adding unique character to the landscape (Correct answer)
- Greater structural strength than new materials
Correct answer: Reduces embodied energy and waste while adding unique character to the landscape
Salvaged materials reduce the environmental cost of manufacturing new products and divert materials from landfills, while their weathered appearance adds authentic character.
Question 32: Which soil texture is most prone to nutrient leaching because it drains too rapidly?
- Sandy soil (Correct answer)
- Silt loam
- Loam
- Clay soil
Correct answer: Sandy soil
Sandy soil has large particles and pore spaces that allow water and dissolved nutrients to drain rapidly past the root zone before plants can absorb them.
Question 33: Which soil amendment is commonly added to heavy clay soil to improve drainage and aeration?
- Lime
- Peat moss alone
- Coarse sand or grit, along with organic matter (Correct answer)
- Topsoil
Correct answer: Coarse sand or grit, along with organic matter
Coarse sand improves drainage by increasing pore space, while organic matter improves overall soil structure in clay.
Question 34: What is a 'bid bond' used for in competitive landscape contracting?
- A bond posted by subcontractors guaranteeing their portion of the work
- A performance guarantee that the contractor will complete the job on time
- A surety bond submitted with a bid guaranteeing the contractor will enter into the contract at the bid price if awarded the job (Correct answer)
- A deposit paid by the client to secure the contractor's bid price
Correct answer: A surety bond submitted with a bid guaranteeing the contractor will enter into the contract at the bid price if awarded the job
A bid bond guarantees that if a contractor is awarded a project based on their bid, they will actually enter into the contract at that bid price, protecting the project owner from a low-ball bid followed by withdrawal.
Question 35: What is a 'living wall' or 'green wall' in sustainable landscape design?
- A vertical structure with plants growing on or in it, used to improve air quality and aesthetics (Correct answer)
- A hedgerow planted along property boundaries
- A fence made from bamboo or other fast-growing materials
- A retaining wall covered with climbing vines
Correct answer: A vertical structure with plants growing on or in it, used to improve air quality and aesthetics
A living wall is a vertical system of planted panels or modules attached to a wall, providing insulation, air purification, biodiversity habitat, and aesthetic benefits in urban settings.
Question 36: Which type of mulch provides the most long-term benefit to soil health as it decomposes?
- Organic mulch such as wood chips or shredded bark (Correct answer)
- Gravel or stone mulch
- Synthetic landscape fabric
- Rubber mulch
Correct answer: Organic mulch such as wood chips or shredded bark
Organic mulches decompose over time, adding organic matter and nutrients to the soil, improving structure, moisture retention, and microbial activity.
Question 37: Why is watering newly installed plants more frequently important?
- It speeds up the grading process
- They prefer drought conditions immediately
- It removes the need for mulch
- Their root systems are not yet established (Correct answer)
Correct answer: Their root systems are not yet established
New plants need consistent moisture until roots spread into surrounding soil.
Question 38: What is the Landscape Industry Certified (LIC) credential in the US landscape industry?
- A state-issued contractor's license required to operate a landscape business
- A pesticide applicator license required by federal law
- A voluntary professional certification from the National Association of Landscape Professionals (NALP) that validates competency in landscape installation and maintenance (Correct answer)
- A LEED accreditation specific to landscape contractors
Correct answer: A voluntary professional certification from the National Association of Landscape Professionals (NALP) that validates competency in landscape installation and maintenance
The Landscape Industry Certified (LIC) designation is a voluntary professional credential administered by NALP that tests and validates practical and technical competency in landscape installation and maintenance.
Question 39: A well-designed landscape can help with ____________.
- Reduce energy consumption and expenditures.
- Reducing the amount of irrigation water used
- Reduce the amount of fertilizer and insecticides required.
- All of the above (Correct answer)
Correct answer: All of the above
A well-designed landscape offers multiple benefits beyond aesthetics. Strategic planting can reduce energy consumption by providing shade and windbreaks, decrease irrigation needs through drought-tolerant plant selection, and minimize the use of fertilizers and insecticides by choosing native or disease-resistant species. Therefore, all the listed options are positive outcomes.
Question 40: A ___________Β may be one of the main areas of development.
- Work or service sector
- All of the above (Correct answer)
- Playground for children
- Area for outdoor entertainment
Correct answer: All of the above
In landscape design, main areas of development are typically categorized by their function. This can include areas for outdoor entertainment (patios, decks), playgrounds for children, and work or service sectors (utility areas, storage). A comprehensive design often incorporates several of these functional zones to meet the client's diverse needs.
Question 41: Why is seasonal interest a consideration in the design process?
- It ensures the landscape looks appealing year-round (Correct answer)
- It determines the fence material
- It eliminates the need for soil prep
- It reduces installation costs to zero
Correct answer: It ensures the landscape looks appealing year-round
Choosing plants with varied bloom and foliage times keeps the garden attractive across seasons.
Question 42: What is the standard depth recommended for new planting bed soil preparation in a landscape installation?
- 8β12 inches (Correct answer)
- 4β5 inches
- 18β24 inches
- 2β3 inches
Correct answer: 8β12 inches
Tilling or loosening soil to 8β12 inches allows roots to establish quickly and reduces transplant stress.
Question 43: What is winterization of an irrigation system and why is it performed?
- Draining the backflow preventer only
- Blowing compressed air through lines to remove water before freezing temperatures (Correct answer)
- Reducing irrigation frequency in autumn
- Insulating above-ground components with foam
Correct answer: Blowing compressed air through lines to remove water before freezing temperatures
Winterization uses compressed air to blow all remaining water from irrigation pipes and heads, preventing freeze damage from water expanding as it freezes inside the lines.
Question 44: A __________Β plan (a scale drawing) depicts the entire property, including the home, property lines, easements, existing paths, drives, fences, trees, and so on.
- Contractors
- Base (Correct answer)
- Working
- Detail
Correct answer: Base
A base plan is the foundational drawing in landscape design, serving as a comprehensive map of the existing site conditions. It accurately illustrates all permanent features of the property, such as structures, boundaries, utilities, and significant existing vegetation. This provides the essential context upon which the new design will be developed.
Question 45: What is 'integrated pest management' (IPM) in landscape maintenance?
- A systematic approach combining cultural, biological, and chemical controls to minimize pest damage with least environmental impact (Correct answer)
- Using only chemical pesticides
- Removing all plants that show pest damage
- Hiring a licensed pest control company
Correct answer: A systematic approach combining cultural, biological, and chemical controls to minimize pest damage with least environmental impact
IPM prioritizes prevention and least-toxic methods, reserving chemical controls as a last resort when thresholds are exceeded.
Question 46: What is a 'French drain' in landscape hardscape design?
- A type of drainage grate installed in patio surfaces
- A decorative stone channel used in formal European garden styles
- A raised concrete curb used to direct surface runoff
- A subsurface drainage system using a perforated pipe in a gravel-filled trench to redirect groundwater (Correct answer)
Correct answer: A subsurface drainage system using a perforated pipe in a gravel-filled trench to redirect groundwater
A French drain is a subsurface drainage solution consisting of a perforated pipe surrounded by gravel in a trench, designed to collect and redirect groundwater away from problem areas.
Question 47: What does 'liquidated damages' mean in a commercial landscape contract?
- A predetermined amount specified in the contract that the contractor must pay for each day a project is not completed by the agreed deadline (Correct answer)
- Damages claimed by the contractor for materials damaged during delivery
- A clause requiring the client to pay for all plant material lost due to drought
- A penalty paid by the client for canceling a contract mid-project
Correct answer: A predetermined amount specified in the contract that the contractor must pay for each day a project is not completed by the agreed deadline
Liquidated damages clauses establish a fixed dollar amount per day of delay beyond the completion date, providing the client with a contractually agreed remedy for late delivery without the need to prove actual damages.
Question 48: What is greywater reuse in a sustainable landscape context?
- Using reclaimed municipal wastewater
- Using household sink, shower, or laundry water for landscape irrigation (Correct answer)
- Recycling pool water for garden irrigation
- Collecting and using rainwater from rooftops
Correct answer: Using household sink, shower, or laundry water for landscape irrigation
Greywater is lightly used household water from sinks, showers, and laundry that can legally be redirected to landscape irrigation in many US states.
Question 49: What is the main benefit of including 'seasonal interest' in a planting plan?
- It eliminates the need for design principles
- Plants never need watering
- It guarantees no pests
- The landscape looks attractive across multiple seasons (Correct answer)
Correct answer: The landscape looks attractive across multiple seasons
Choosing plants with varied bloom, foliage, and bark times keeps the landscape appealing year-round.
Question 50: What does carbon sequestration mean in the context of landscape planting?
- Planting trees to offset carbon credits
- Reducing carbon emissions from landscape maintenance equipment
- Using carbon-rich compost to improve soil
- Plants absorbing and storing atmospheric CO2 in their biomass and soil (Correct answer)
Correct answer: Plants absorbing and storing atmospheric CO2 in their biomass and soil
Carbon sequestration is the process by which plants absorb carbon dioxide through photosynthesis and store it as organic carbon in plant tissue and soil, reducing atmospheric CO2.
Question 51: Which US certification program recognizes residential landscapes that provide certified wildlife habitat?
- EPA Backyard Conservation Program
- National Wildlife Federation Certified Wildlife Habitat (Correct answer)
- USDA Wildlife Landscape Certification
- Audubon Society Garden Certification
Correct answer: National Wildlife Federation Certified Wildlife Habitat
The National Wildlife Federation's Certified Wildlife Habitat program recognizes gardens that provide food, water, cover, and places to raise young for local wildlife.
Question 52: What is the final phase typically included in the landscaping process?
- Concept sketching
- Budget estimation
- Ongoing maintenance and establishment care (Correct answer)
- Initial site analysis
Correct answer: Ongoing maintenance and establishment care
Maintenance ensures plants establish and the design matures as intended.
Question 53: The method of creating a landscape design will be described in detail below.
- Assist you in understanding, organizing, and developing the site for optimal usage and enjoyment.
- All of the above (Correct answer)
- Make a visual connection between the house/business and the location.
- Reduce the overall level of maintenance that will be necessary.
Correct answer: All of the above
The process of creating a landscape design is multifaceted. It aims to establish a visual connection between the built environment and the natural surroundings, reduce future maintenance requirements through thoughtful plant and material selection, and ultimately organize the site for optimal functionality and enjoyment by its users. All these aspects are integral to a detailed design method.
Question 54: Which planting concept emphasizes using plants native to the local region?
- Container gardening
- Hydroponics
- Topiary gardening
- Native or sustainable landscaping (Correct answer)
Correct answer: Native or sustainable landscaping
Native landscaping uses regionally adapted plants that support local ecology and need less care.
Question 55: What does 'bioavailability' mean in the context of soil nutrients for landscape plants?
- The rate at which fertilizer dissolves in water
- The depth at which nutrients are stored
- The portion of a soil nutrient that plants can actually absorb and use (Correct answer)
- The total amount of a nutrient in the soil
Correct answer: The portion of a soil nutrient that plants can actually absorb and use
Bioavailability depends on soil pH, moisture, and microbial activity β a nutrient present in soil may still be unavailable to plants.
Question 56: What is the minimum recommended slope for lawn areas to ensure proper drainage away from structures?
- 10%
- 5%
- 2% (Correct answer)
- 1%
Correct answer: 2%
A 2% minimum slope (approximately 1/4 inch per foot) is the industry standard for directing surface water away from buildings.
Question 57: When evaluating a completed project, what is a sign of successful drainage design?
- Water collects against the foundation
- Water moves away from structures without pooling (Correct answer)
- Puddles remain for days after rain
- Soil stays permanently saturated
Correct answer: Water moves away from structures without pooling
Proper grading directs water away from buildings and prevents standing water.
Question 58: Why is creating a 'bubble diagram' useful early in the design process?
- It lists exact plant prices
- It replaces the construction drawing
- It finalizes irrigation specs
- It roughly organizes functional areas before detailing the plan (Correct answer)
Correct answer: It roughly organizes functional areas before detailing the plan
Bubble diagrams loosely map out use areas and circulation before refining the design.
Question 59: What is 'grazing' in landscape lighting design?
- Installing lights at pasture-level for rural properties
- Placing a light source very close to a wall or textured surface to highlight its surface relief and texture (Correct answer)
- Lighting a garden at a low angle from the perimeter inward
- Using wide-beam floodlights to illuminate large open lawn areas
Correct answer: Placing a light source very close to a wall or textured surface to highlight its surface relief and texture
Grazing involves positioning a fixture very close to and parallel with a textured surface (brick, stone, bark) so the raking light highlights the surface relief and three-dimensional texture.
Question 60: What is the 'design process' typically initiated with in landscape planning?
- Installing irrigation first
- Buying plants immediately
- A site analysis and inventory of existing conditions (Correct answer)
- Pouring concrete walkways
Correct answer: A site analysis and inventory of existing conditions
Good design begins with analyzing the site's existing conditions, soil, sun, and drainage.
Question 61: What is the purpose of organic matter (compost) in landscape soil preparation?
- To reduce soil volume
- To kill existing weeds
- To raise soil pH only
- To improve soil structure, water retention, drainage, and nutrient availability (Correct answer)
Correct answer: To improve soil structure, water retention, drainage, and nutrient availability
Organic matter improves both drainage in clay soils and water retention in sandy soils while feeding soil microorganisms.
Question 62: What does 'balance' mean in a landscape composition?
- Level ground throughout the yard
- The visual equilibrium of elements on either side of a central axis (Correct answer)
- Equal numbers of trees and shrubs
- Equal sunlight for all plants
Correct answer: The visual equilibrium of elements on either side of a central axis
Balance is the visual equilibrium achieved symmetrically or asymmetrically across a design.
Question 63: What is the urban heat island effect and how can landscape design mitigate it?
- Heat generated by irrigation systems in cities
- Increased pest pressure in urban environments
- Soil temperature rise from impermeable pavement
- Cities are hotter than surrounding rural areas; mitigated by trees and reflective surfaces (Correct answer)
Correct answer: Cities are hotter than surrounding rural areas; mitigated by trees and reflective surfaces
The urban heat island effect occurs when built surfaces absorb and radiate heat; strategic tree planting and cool paving materials reduce ambient temperatures significantly.
Question 64: What is the primary cause of 'salt injury' to landscape plants in arid western US regions?
- Over-application of potassium fertilizer
- Road salt runoff from nearby highways
- Naturally high sodium content in native soils
- Accumulation of soluble salts from irrigation water or fertilizer in the root zone (Correct answer)
Correct answer: Accumulation of soluble salts from irrigation water or fertilizer in the root zone
Salt injury results from the buildup of dissolved salts in the root zone from irrigation water or excess fertilizer, creating osmotic stress that prevents roots from absorbing water.
Question 65: What does 'circulation' refer to in landscape planning?
- How air moves through plants
- How people move through and between spaces (Correct answer)
- How roots spread in soil
- How water drains underground
Correct answer: How people move through and between spaces
Circulation is the movement of people via paths and walkways through the landscape.
Question 66: What does a percolation test measure in landscape site assessment?
- Soil fertility and nutrient content
- Soil compaction resistance
- Depth to hardpan or bedrock
- Rate at which water drains through soil (Correct answer)
Correct answer: Rate at which water drains through soil
A percolation test measures how quickly water drains through soil by timing the drop in water level in a test hole, which is critical for drainage and irrigation design.
Question 67: What is 'voltage drop' in a low-voltage landscape lighting system and how is it addressed?
- The reduction in voltage along a wire run as current travels farther from the transformer, causing lights to dim; addressed by using larger wire gauge or multiple runs (Correct answer)
- A decrease in system voltage during peak demand hours from the utility; addressed by adding a voltage stabilizer
- The dimming of lights over time as bulbs age; addressed by replacing bulbs on schedule
- The drop in fixture height as stakes settle into soil over time; addressed by reinstalling fixtures seasonally
Correct answer: The reduction in voltage along a wire run as current travels farther from the transformer, causing lights to dim; addressed by using larger wire gauge or multiple runs
Voltage drop occurs because wire resistance causes voltage to decrease as current travels along longer wire runs, resulting in dimmer fixtures farther from the transformer; corrected by using larger wire gauge or home-run wiring configurations.
Question 68: What does the term 'massing' refer to in planting design?
- Measuring the weight of mulch bags
- Grouping plants together for visual impact and cohesion (Correct answer)
- Counting total plant inventory
- Weighing soil samples for testing
Correct answer: Grouping plants together for visual impact and cohesion
Massing clusters plants to create stronger, unified design statements.
Question 69: Which of the following is a recognized benefit of maintaining healthy urban tree canopy in US cities?
- Elimination of need for stormwater infrastructure
- Reduction of urban heat island effect and energy costs (Correct answer)
- Reduction in property values due to maintenance costs
- Increased surface water runoff
Correct answer: Reduction of urban heat island effect and energy costs
Urban tree canopy reduces the heat island effect by shading surfaces and releasing moisture through transpiration, lowering cooling energy costs and improving air quality.
Question 70: What is a pollinator garden designed to provide?
- Controlled environment for rare plant species
- Food and habitat for bees, butterflies, and other pollinating insects (Correct answer)
- Strictly native plant collections for research
- Pesticide-free zone for organic food production
Correct answer: Food and habitat for bees, butterflies, and other pollinating insects
Pollinator gardens feature diverse, flowering native and non-invasive plants that provide nectar, pollen, and nesting habitat for bees, butterflies, and other beneficial insects.
Question 71: Why is a 'transition' important when designing plant beds?
- It prevents flowering
- It eliminates the need for mulch
- It gradually changes size, color, or texture to avoid abrupt visual jumps (Correct answer)
- It speeds up plant growth
Correct answer: It gradually changes size, color, or texture to avoid abrupt visual jumps
Gradual transitions in height, texture, or color make a design feel natural and flowing.
Question 72: What is a culvert used for in landscape drainage?
- A pressurized pipe that distributes water to drip irrigation emitters
- A pipe or structure that allows water to flow under a road, path, or other obstruction (Correct answer)
- A sediment filter installed at the inlet of a stormwater system
- An underground storage vault for overwintering tender bulbs
Correct answer: A pipe or structure that allows water to flow under a road, path, or other obstruction
A culvert is a conduit that allows a drainage channel or stream to continue flowing beneath a road, pathway, or embankment without interruption.
Question 73: When designing for a small yard, which technique helps it feel larger?
- Using diagonal lines and borrowed views (Correct answer)
- Filling it with large dense trees
- Adding tall solid fences on all sides
- Using only one giant focal feature
Correct answer: Using diagonal lines and borrowed views
Diagonal sightlines and borrowing distant views visually expand a small space.
Question 74: A homeowner wants a low-maintenance landscape in a dry climate. Which approach fits best?
- Tropical moisture-loving plants
- A large turf lawn
- Xeriscaping with drought-tolerant plants (Correct answer)
- Daily flood irrigation
Correct answer: Xeriscaping with drought-tolerant plants
Xeriscaping uses drought-tolerant plants and efficient watering to minimize maintenance in dry climates.
Question 75: What is 'plant hardiness zone creep' and its relevance to US landscape maintenance planning?
- The gradual shift of USDA hardiness zones northward due to rising average minimum temperatures over time (Correct answer)
- Zone maps becoming outdated instantly
- Plants becoming resistant to pruning
- Invasive plants spreading into new zones
Correct answer: The gradual shift of USDA hardiness zones northward due to rising average minimum temperatures over time
Warming minimum temperatures allow formerly tender plants to survive in zones where they previously would have died in winter.
Question 76: Which invasive grass species commonly encroaches into cool-season lawns and must be considered when specifying turf?
- Bermudagrass (Correct answer)
- Zoysia
- Kentucky bluegrass
- Fescue
Correct answer: Bermudagrass
Bermudagrass spreads aggressively into cool-season lawns and is considered invasive outside its intended warm-season application zones.
Question 77: What is the term for the uneven appearance of brick or stone caused by inconsistent mortar joint width?
- Poor coursing or misalignment (Correct answer)
- Efflorescence
- Spalling
- Weeping
Correct answer: Poor coursing or misalignment
Poor coursing results from inconsistent mortar joint widths, creating an unprofessional, uneven appearance in masonry work.
Question 78: What does 'integrated pest management' (IPM) mean in sustainable landscaping?
- Hiring certified pest control professionals for all pest problems
- Installing physical barriers around all landscape plantings
- Using only chemical pesticides approved by the EPA
- A pest control approach that combines biological, cultural, mechanical, and chemical methods to minimize environmental impact (Correct answer)
Correct answer: A pest control approach that combines biological, cultural, mechanical, and chemical methods to minimize environmental impact
IPM is a holistic pest management strategy that uses the least harmful methods first, combining cultural practices, biological controls, and targeted chemical applications only when necessary.
Question 79: What is the minimum recommended slope (cross-slope) for a paved patio surface to ensure proper drainage?
- 0% β patios must be perfectly level
- 0.5β1% slope
- 1β2% slope away from structures (Correct answer)
- 5β8% slope
Correct answer: 1β2% slope away from structures
Paved patios should slope at 1β2% (1/8 to 1/4 inch per foot) away from buildings to direct water runoff and prevent pooling or foundation damage.
Question 80: What are the three primary soil texture classes in the USDA soil texture triangle?
- Sand, silt, and clay (Correct answer)
- Loam, humus, and peat
- Topsoil, subsoil, and bedrock
- Clay, silt, and gravel
Correct answer: Sand, silt, and clay
The USDA soil texture triangle categorizes soils based on proportions of sand, silt, and clay particles.
Question 81: Which landscape condition is indicated by a high water table near the soil surface?
- High nutrient availability
- Drought stress potential
- Sandy soil texture
- Poor drainage and risk of root suffocation for non-wetland plants (Correct answer)
Correct answer: Poor drainage and risk of root suffocation for non-wetland plants
A high water table saturates the soil root zone, depriving roots of oxygen and causing root rot in non-adapted plants.
Question 82: What are 'chill hours' in horticulture and why do they matter for plant selection?
- Hours of full sun required daily
- Hours below 45F needed for fruit or flower production (Correct answer)
- Irrigation frequency in cold months
- Time for roots to establish in winter
Correct answer: Hours below 45F needed for fruit or flower production
Chill hours are cumulative hours at temperatures below 45 degrees F that deciduous fruit trees and some ornamentals need to break dormancy and bloom or fruit properly.
Question 83: What does the term ecosystem services mean in the context of landscape value?
- Benefits that natural landscape elements provide to humans, such as clean air, water filtration, and climate regulation (Correct answer)
- Government programs that fund sustainable landscaping
- Pest management services using natural predators
- Services provided by landscape contractors using ecological methods
Correct answer: Benefits that natural landscape elements provide to humans, such as clean air, water filtration, and climate regulation
Ecosystem services are the direct and indirect benefits that functioning ecosystems and landscape elements such as trees and wetlands provide to human well-being at no cost.
Question 84: Why might a designer use 'evergreen' plants as a backbone of the design?
- They bloom only in winter
- They die back every season
- They provide year-round structure and color (Correct answer)
- They require no soil
Correct answer: They provide year-round structure and color
Evergreens retain foliage all year, giving consistent structure and winter interest.
Question 85: What is the main goal of the grading phase in landscape construction?
- To choose paint colors for fences
- To shape the land for proper drainage and usable areas (Correct answer)
- To select ornamental plant varieties
- To install decorative lighting
Correct answer: To shape the land for proper drainage and usable areas
Grading controls water flow and creates level, functional spaces.
Question 86: Which pruning cut removes a branch back to its point of origin at the trunk or main stem?
- Thinning cut (removal cut) (Correct answer)
- Stub cut
- Pinching
- Heading cut
Correct answer: Thinning cut (removal cut)
A thinning or removal cut eliminates an entire branch at its origin, preserving the plant's natural form without stimulating excessive regrowth.
Question 87: What does 'layered lighting' mean in a comprehensive landscape lighting design?
- Installing multiple fixtures at different soil depths
- Combining different lighting techniques (accent, ambient, task, safety) to create a balanced, multidimensional nighttime landscape (Correct answer)
- Stacking landscape lighting fixtures on mounting poles of varying heights
- Using different colored lights at different levels of the landscape
Correct answer: Combining different lighting techniques (accent, ambient, task, safety) to create a balanced, multidimensional nighttime landscape
Layered lighting combines multiple techniques β accent, ambient, task, and safety lighting β to create depth, interest, and functional illumination throughout the landscape rather than relying on a single type of fixture.
Question 88: What is the matched precipitation rate (MPR) principle in irrigation design?
- All heads in a zone deliver the same precipitation rate regardless of arc (Correct answer)
- Adjusting pressure to match flow requirements
- Setting rotor and spray heads in the same zone
- Matching irrigation output to rainfall amounts
Correct answer: All heads in a zone deliver the same precipitation rate regardless of arc
MPR nozzles ensure that quarter, half, and full circle heads in the same zone deliver water at the same rate per square foot, preventing over and under watering.
Question 89: What does 'systemic' mean when describing a pesticide used in landscape maintenance?
- Fast-acting on contact
- Applied to the entire property at once
- Absorbed by the plant and translocated through its vascular system to affect pests feeding on it (Correct answer)
- Non-toxic to beneficial insects
Correct answer: Absorbed by the plant and translocated through its vascular system to affect pests feeding on it
Systemic pesticides move through plant tissue, controlling insects that feed on the plant from anywhere on its surface.
Question 90: Which growth habit describes a plant that completes its life cycle in one growing season?
- Evergreen
- Biennial
- Annual (Correct answer)
- Perennial
Correct answer: Annual
Annuals germinate, flower, set seed, and die within a single growing season.
Question 91: What is 'beam spread' in landscape lighting fixture selection?
- The total wiring distance a transformer can support
- The angle of the light cone emitted by a fixture, ranging from narrow spot to wide flood (Correct answer)
- The reach of a motion sensor around a security light
- The coverage area of a path light at a given height
Correct answer: The angle of the light cone emitted by a fixture, ranging from narrow spot to wide flood
Beam spread describes the angle of the light cone produced by a fixture β narrow spots (10β15Β°) concentrate light on a focal point while wide floods (45β120Β°) wash a broader area.
Question 92: What is 'carbon sequestration' in the context of landscape design?
- The process by which plants and soils capture and store atmospheric COβ, contributing to climate change mitigation (Correct answer)
- Measuring carbon content in soil for fertilizer planning
- Reducing carbon emissions from landscape equipment
- Offsetting landscape maintenance fuel use with carbon credits
Correct answer: The process by which plants and soils capture and store atmospheric COβ, contributing to climate change mitigation
Carbon sequestration in landscapes refers to the capture and long-term storage of atmospheric carbon dioxide in plant biomass and soil organic matter, helping offset greenhouse gas emissions.
Question 93: What is a soil horizon relevant to landscape grading and planting?
- A distinct vertical layer of soil with different characteristics (Correct answer)
- The depth to the water table
- The slope angle of a graded site
- The top layer of mulch above soil
Correct answer: A distinct vertical layer of soil with different characteristics
Soil horizons are distinct horizontal layers with different textures, organic matter, and colors that develop over time and affect drainage and rooting.
Question 94: When thinking about how to develop the site, strive to keep as much star________Β as feasible.
- Turfgrass (Correct answer)
- Grade change
- Rock
- Existing vegetation
Correct answer: Turfgrass
Maintaining existing turfgrass is often a practical and cost-effective approach in landscape development. It helps preserve established ground cover, reduces the need for extensive new planting, and can contribute to soil stability and immediate aesthetic appeal. This minimizes disruption and resource use during site development.
Question 95: What is renewal pruning for older, overgrown deciduous shrubs?
- Cutting the entire shrub to the ground at once
- Trimming the outer surface to reduce size
- Removing one-third of the oldest stems at ground level each year over 3 years (Correct answer)
- Removing all dead branches only
Correct answer: Removing one-third of the oldest stems at ground level each year over 3 years
Renewal pruning rejuvenates overgrown shrubs by removing the oldest, most unproductive canes at the base each year, stimulating vigorous new growth over a 3-year cycle.
Question 96: ________ are organically adaptable to site conditions and should be used in the design whenever possible.
- Most trees
- Native Plants (Correct answer)
- Introduced species
- All grasses
Correct answer: Native Plants
Native plants are species that naturally occur in a particular region or ecosystem. They are inherently adapted to the local climate, soil conditions, and wildlife, making them more resilient and requiring less water, fertilizer, and pest control compared to non-native species. Incorporating native plants promotes ecological balance and sustainable landscape design.
Question 97: Which is an example of a 'functional' design consideration?
- Providing screening for privacy from neighbors (Correct answer)
- Picking the rarest plant
- Choosing the prettiest flower
- Matching the mailbox color
Correct answer: Providing screening for privacy from neighbors
Functional considerations address practical needs like privacy, shade, or traffic flow.
Question 98: How does considering a plant's mature size affect the design process?
- It determines the color of the mulch
- It changes the soil pH
- It sets the patio dimensions
- It prevents overcrowding and future maintenance problems (Correct answer)
Correct answer: It prevents overcrowding and future maintenance problems
Planning for full growth avoids crowding and excessive pruning later.
Question 99: What does 'pH' measure in relation to plant selection?
- Nutrient density
- Organic matter percentage
- Soil acidity or alkalinity (Correct answer)
- Soil moisture content
Correct answer: Soil acidity or alkalinity
Soil pH measures hydrogen ion concentration, determining whether soil is acidic, neutral, or alkaline, which affects nutrient availability to plants.
Question 100: Which site analysis factor must be determined before locating any underground irrigation or electrical lines?
- Underground utility locations via 811 (Call Before You Dig) (Correct answer)
- Soil pH
- Plant hardiness zone
- Prevailing wind direction
Correct answer: Underground utility locations via 811 (Call Before You Dig)
Calling 811 is legally required before digging in most US states to locate buried utility lines and prevent damage.
Question 101: After identifying the natural circumstances on a lot, the designer should next determine the:
- The cultural characteristics of the lot
- The house's location
- The lot's man-made features (Correct answer)
- The position of a neighbor's residence
Correct answer: The lot's man-made features
In a thorough site analysis, after understanding the natural elements like topography, soil, and existing vegetation, the next logical step is to identify all man-made features. This includes structures, utilities, fences, paths, and any other existing human-made elements that will influence the design and placement of new landscape components.
Question 102: Which material is most commonly used for edging to keep mulch beds and paver installations separated?
- Pressure-treated lumber
- Concrete pavers set vertically
- PVC pipe
- Steel, aluminum, or plastic landscape edging (Correct answer)
Correct answer: Steel, aluminum, or plastic landscape edging
Steel, aluminum, or flexible plastic landscape edging is installed at the perimeter of beds and hardscape to create a clean border and prevent mulch or soil migration.
Question 103: What soil test result is most important before amending soil for a new landscape installation?
- pH and nutrient levels (N, P, K) (Correct answer)
- Organic matter percentage only
- Compaction depth only
- Microbial activity count
Correct answer: pH and nutrient levels (N, P, K)
A baseline soil test for pH and macronutrient levels guides amendment decisions and prevents over or under fertilizing.
Question 104: Which irrigation system type delivers water directly to the root zone, minimizing evaporation and runoff?
- Overhead spray system
- Flood irrigation system
- Rotary sprinkler system
- Drip irrigation system (Correct answer)
Correct answer: Drip irrigation system
Drip irrigation delivers water slowly and directly to the plant root zone, reducing evaporation, runoff, and foliar disease by keeping foliage dry.
Question 105: What is the primary concern with installing landscape features over a septic drain field?
- Aesthetic conflicts
- Increased erosion risk
- Root intrusion and soil compaction can damage or block the drain field system (Correct answer)
- Reduced plant growth rates
Correct answer: Root intrusion and soil compaction can damage or block the drain field system
Deep-rooted plants and compacted soil reduce the drain field's ability to disperse effluent, causing system failure.
Question 106: A USDA Plant Hardiness Zone helps a designer determine what?
- How much a plant costs
- Which plants can survive the local winter temperatures (Correct answer)
- The soil pH level
- The bloom color of a plant
Correct answer: Which plants can survive the local winter temperatures
Hardiness zones indicate the coldest temperatures plants can typically survive in a region.
Question 107: What are the three primary macronutrients found in most commercial fertilizers, represented by the NPK ratio?
- Nitrogen, Phosphorus, Calcium
- Niacin, Phosphate, Kieserite
- Nitrogen, Phosphorus, Potassium (Correct answer)
- Nitrate, Potash, Kelp
Correct answer: Nitrogen, Phosphorus, Potassium
NPK stands for Nitrogen (N), Phosphorus (P), and Potassium (K), the three primary macronutrients essential for plant growth and the basis of fertilizer labeling.
Question 108: What is the purpose of a 'compacted gravel base' beneath paver installations?
- To add color contrast beneath the pavers
- To make pavers easier to remove for replacement
- To provide a stable, well-drained foundation that prevents settling and frost heave (Correct answer)
- To reflect heat and keep pavers cooler in summer
Correct answer: To provide a stable, well-drained foundation that prevents settling and frost heave
A compacted gravel base provides a stable, freely draining foundation beneath pavers, reducing settling, frost heave, and surface unevenness over time.
Question 109: What is the recommended mulch depth for most landscape planting beds?
- 10 inches or more
- 6 to 8 inches
- Less than 1 inch
- 2 to 4 inches (Correct answer)
Correct answer: 2 to 4 inches
A 2 to 4 inch layer of mulch suppresses weeds, retains moisture, moderates soil temperature, and adds organic matter without suffocating roots.
Question 110: Which landscape design principle involves repeating plants, colors, or forms throughout a design to create visual unity?
- Balance
- Proportion
- Contrast
- Rhythm (Correct answer)
Correct answer: Rhythm
Rhythm uses repetition of design elements such as plant species, color, texture, or form to create a cohesive, flowing visual pattern.
Question 111: What does 'bonded' mean when a landscape contractor states they are 'licensed, bonded, and insured'?
- The contractor has purchased a surety bond that provides financial protection to clients if the contractor fails to complete the work or pay subcontractors (Correct answer)
- The contractor's equipment is secured with GPS tracking
- The contractor has passed a background check
- The contractor has a signed agreement with a professional association
Correct answer: The contractor has purchased a surety bond that provides financial protection to clients if the contractor fails to complete the work or pay subcontractors
Being bonded means a contractor has purchased a surety bond β a form of insurance that compensates clients if the contractor abandons a project, fails to complete work, or doesn't pay subcontractors.
Question 112: What does 'texture' refer to in plant selection?
- The plant's water needs
- The visual and tactile coarseness or fineness of foliage and surfaces (Correct answer)
- The soil drainage rate
- The plant's bloom color
Correct answer: The visual and tactile coarseness or fineness of foliage and surfaces
Texture is the perceived coarseness or fineness of leaves, bark, and surfaces.
Question 113: An 'analogous' color scheme is made up of what?
- Black, white, and gray only
- Opposite colors on the wheel
- Colors adjacent to each other on the color wheel (Correct answer)
- A single color in one shade
Correct answer: Colors adjacent to each other on the color wheel
Analogous schemes use neighboring colors like blue, blue-green, and green for harmony.
Question 114: What is the best time to apply pre-emergent herbicide for crabgrass control in US lawns?
- Midsummer during peak growth
- Early spring before soil temperature reaches 55 degrees F (Correct answer)
- After crabgrass has germinated
- Late fall after first frost
Correct answer: Early spring before soil temperature reaches 55 degrees F
Pre-emergent herbicides must be applied before crabgrass seeds germinate, which occurs when soil temperature reaches 55 degrees F at a 2-inch depth in spring.
Question 115: What is 'path lighting' primarily designed to achieve in a landscape lighting plan?
- To create a festive atmosphere for outdoor entertaining areas
- To dramatically highlight specimen plants along a walkway
- To provide safe, visible illumination of walkways, steps, and transitions for navigation and safety (Correct answer)
- To deter trespassers by flooding approach paths with bright light
Correct answer: To provide safe, visible illumination of walkways, steps, and transitions for navigation and safety
Path lighting's primary purpose is to safely illuminate walkways, steps, and grade changes so people can navigate the landscape safely at night, with aesthetics as a secondary consideration.
Question 116: What is the correct method for taking a representative soil sample for laboratory testing?
- Collect surface soil from the top 1 inch only
- Collect 10 to 15 cores from random locations and mix thoroughly (Correct answer)
- Take one deep core from the center of the area
- Sample only from areas where plants are struggling
Correct answer: Collect 10 to 15 cores from random locations and mix thoroughly
A composite soil sample made from 10 to 15 randomly collected cores mixed together accurately represents the overall soil conditions across an entire landscape area.
Question 117: Which factor is most critical when selecting the thickness of concrete for a residential driveway?
- Aesthetic preference of the homeowner
- Anticipated vehicle loads and soil bearing capacity (Correct answer)
- The color of the aggregate selected
- Local building codes only
Correct answer: Anticipated vehicle loads and soil bearing capacity
Concrete thickness for driveways must be designed around anticipated vehicle loads and the bearing capacity of the subgrade soil, with typical residential driveways requiring 4 inches minimum.
Question 118: Which certification program is the primary standard for sustainable site development in the US landscape industry?
- ENERGY STAR Landscape Certification
- Green Seal Landscape Program
- SITES (Sustainable Sites Initiative) (Correct answer)
- LEED (Leadership in Energy and Environmental Design)
Correct answer: SITES (Sustainable Sites Initiative)
The SITES (Sustainable Sites Initiative) certification is the primary rating system specifically designed for sustainable landscape, site, and land design projects in the US.
Question 119: What is 'no-mow' or 'low-mow' lawn design and what are its environmental benefits?
- Using robotic mowers that operate on solar power
- Designing lawn areas with fine fescues or meadow plants that require minimal mowing, reducing fuel use, noise, and emissions (Correct answer)
- Eliminating all turf areas from residential landscapes
- Replacing all lawn with artificial turf to eliminate mowing entirely
Correct answer: Designing lawn areas with fine fescues or meadow plants that require minimal mowing, reducing fuel use, noise, and emissions
No-mow or low-mow designs use fine fescues, clover, or native meadow plants that maintain an attractive appearance with minimal cutting, reducing fuel consumption, air emissions, and maintenance labor.
Question 120: What is selective pruning versus shearing in shrub maintenance?
- They are the same technique applied to different plant types
- Shearing removes individual stems; selective pruning cuts the whole plant
- Selective pruning removes individual branches; shearing cuts the entire surface uniformly (Correct answer)
- Selective pruning is for trees; shearing is for ground covers
Correct answer: Selective pruning removes individual branches; shearing cuts the entire surface uniformly
Selective pruning removes specific branches to improve structure and maintain natural form, while shearing uniformly cuts the outer surface creating an artificial, rigid shape.
Landscape Architect Registration Examination (LARE)
The LARE is the national licensure exam administered by CLARB that tests landscape architects on site inventory and analysis, planning and design, construction documentation, and grading and drainage across four sections.
Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong β answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds