Welcome to your C-27 Landscaping - Practice Exam 1 1. What is the primary purpose of including an allowance for contingencies in a landscape project estimate? What is the primary purpose of including an allowance for contingencies in a landscape project estimate?Deselect Answer To increase the contractor's profit margin To cover unforeseen site conditions, price fluctuations, and scope changes that cannot be precisely estimated To pay for permit fees To fund the warranty period maintenance None 2. What is the purpose of a filter or screen at the head of a drip irrigation system? What is the purpose of a filter or screen at the head of a drip irrigation system?Deselect Answer To reduce water pressure for drip emitters To remove debris particles that would clog the small orifices in drip emitters, which are much smaller than spray nozzle openings and more susceptible to clogging To add fertilizer to the irrigation water To measure flow rate through the drip system None 3. What is the BEST backfill material to use behind a retaining wall for drainage and stability? What is the BEST backfill material to use behind a retaining wall for drainage and stability?Deselect Answer Clay soil from the site Clean crushed gravel or angular crushed rock, 3/4 inch minus without fines Topsoil mixed with compost Concrete slurry None 4. What is a rain sensor and why is it required in California irrigation systems? What is a rain sensor and why is it required in California irrigation systems?Deselect Answer A sensor that measures rainfall and stores the water for irrigation use A device that shuts off the irrigation system automatically when rainfall occurs, preventing irrigation during or immediately after rain events A weather station that predicts future rainfall for irrigation scheduling A pressure sensor that detects breaks in irrigation lines during rainfall None 5. What is a drip irrigation emitter's flow rate typically expressed in? What is a drip irrigation emitter's flow rate typically expressed in?Deselect Answer Gallons per minute (GPM) Gallons per hour (GPH) Cubic feet per second (CFS) Liters per minute None 6. What is the most likely cause when an irrigation system runs but one zone produces very low pressure and poor coverage? What is the most likely cause when an irrigation system runs but one zone produces very low pressure and poor coverage?Deselect Answer The controller timer is set incorrectly A broken lateral pipe, clogged or broken heads, or a partially closed valve in that zone The backflow preventer needs replacement The water meter is too small for the system None 7. When installing natural stone veneers on a wall, what type of adhesive or setting material is most appropriate? When installing natural stone veneers on a wall, what type of adhesive or setting material is most appropriate?Deselect Answer Standard construction adhesive (liquid nails type) Type S or Type N mortar, or mortar specifically formulated for stone veneer installation Epoxy adhesive only No adhesive is needed if stones are tight-fitting None 8. What is the purpose of a geogrid in retaining wall construction? What is the purpose of a geogrid in retaining wall construction?Deselect Answer To waterproof the back of the wall To reinforce the retained soil mass by connecting back into the slope, providing tensile reinforcement that dramatically increases the wall's resistance to overturning To provide drainage behind the wall To prevent frost heave under the wall footing None 9. What is the proper method for installing a pressure vacuum breaker (PVB) in a landscape irrigation system? What is the proper method for installing a pressure vacuum breaker (PVB) in a landscape irrigation system?Deselect Answer At least 12 inches below the highest sprinkler head in the system At least 12 inches above the highest sprinkler head in the system At the same elevation as the irrigation controller Immediately adjacent to the water meter at grade None 10. What is the purpose of expansion joints (isolation joints) in concrete flatwork? What is the purpose of expansion joints (isolation joints) in concrete flatwork?Deselect Answer To create decorative patterns in the concrete surface To allow independent movement between concrete sections and adjacent structures, preventing cracking from thermal expansion, contraction, and differential settlement To increase the thickness of the concrete at high-stress areas To allow water to drain through the slab None 11. What is the purpose of using native plants in California landscaping? What is the purpose of using native plants in California landscaping?Deselect Answer Native plants are always cheaper than non-native plants California native plants are adapted to local rainfall patterns, soils, and climate conditions, requiring less supplemental irrigation, fertilization, and pest control once established Native plants grow faster than non-native ornamentals in all conditions All native plants are deer-resistant and require no maintenance None 12. What equipment is typically used to compact soil and aggregate base in preparation for hardscape installation? What equipment is typically used to compact soil and aggregate base in preparation for hardscape installation?Deselect Answer Backhoe only Plate compactor or jumping jack tamper Garden tiller Rotary drum roller only None 13. What is the recommended water-to-cement ratio for a concrete mix for exterior flatwork? What is the recommended water-to-cement ratio for a concrete mix for exterior flatwork?Deselect Answer The more water the better for workability Maximum 0.45 to 0.50 water-to-cement ratio by weight for strength and durability 1:1 ratio of water to cement by volume Water ratio is irrelevant if the concrete is properly vibrated None 14. What is the purpose of a backflow preventer in a landscape irrigation system? What is the purpose of a backflow preventer in a landscape irrigation system?Deselect Answer To regulate water pressure to sprinkler heads To prevent contaminated irrigation water from flowing backward into the potable water supply To increase water flow rate in the system To filter sediment from the water supply before it reaches the sprinkler heads None 15. What is the correct way to stake a newly planted tree? What is the correct way to stake a newly planted tree?Deselect Answer Drive 3 stakes tightly against the trunk with wire wrapped through hose to prevent movement Use two stakes outside the root ball with soft, flexible ties that allow some trunk movement, and remove stakes after 1 year Stake every tree permanently regardless of size Tie the trunk rigidly to a single stake at the top of the tree None 16. What is the proper procedure for handling a chemical spill of a landscape herbicide on a job site? What is the proper procedure for handling a chemical spill of a landscape herbicide on a job site?Deselect Answer Allow it to dry and continue working Contain the spill immediately using absorbent materials (soil, kitty litter, absorbent pads), consult the SDS for proper disposal, and report as required by law Dilute with large amounts of water and wash into storm drain Cover with mulch and leave for natural degradation None 17. What type of mortar joint finish is most weather-resistant for outdoor masonry? What type of mortar joint finish is most weather-resistant for outdoor masonry?Deselect Answer Flush joint Raked joint (1/4 inch recess) Tooled concave joint (rodded joint) Extruded (weeping) joint None 18. What is the significance of the Model Water Efficient Landscape Ordinance (MWELO) for California landscape contractors? What is the significance of the Model Water Efficient Landscape Ordinance (MWELO) for California landscape contractors?Deselect Answer It only applies to agricultural irrigation systems It establishes maximum water budgets, requires water-efficient irrigation, and mandates certain design and installation practices for new and rehabilitated landscapes in California It is a voluntary guideline with no enforcement mechanism It applies only to landscapes larger than 5 acres None 19. What is the recommended gap between pavers for standard joint sand installation? What is the recommended gap between pavers for standard joint sand installation?Deselect Answer No gap — pavers should be butted tightly together 1/8 inch to 3/16 inch 1/2 inch to 3/4 inch 1 inch minimum None 20. What is the recommended mulch depth around newly planted shrubs and trees? What is the recommended mulch depth around newly planted shrubs and trees?Deselect Answer 1 inch 2 to 4 inches 6 to 8 inches Mulch should not be used around trees None 21. When digging trenches for irrigation pipes over 5 feet deep, what Cal/OSHA requirement applies? When digging trenches for irrigation pipes over 5 feet deep, what Cal/OSHA requirement applies?Deselect Answer No special requirements apply to trenching for irrigation pipe Cal/OSHA Title 8 Section 1541 requires trenches 5 feet or deeper to be protected against cave-in by sloping, shoring, or trench shields Only a safety observer is needed for trenches deeper than 5 feet Trenches over 5 feet deep require a ladder only None 22. What information is typically shown on a landscape irrigation plan? What information is typically shown on a landscape irrigation plan?Deselect Answer Only the location of sprinkler heads and drip emitters Sprinkler and emitter locations, pipe routing, valve locations, controller location, water meter size, and point of connection Only the controller programming schedule Plant materials and their water requirements only None 23. What is the best method for controlling nuisance weeds in established planting beds? What is the best method for controlling nuisance weeds in established planting beds?Deselect Answer Apply pre-emergent herbicide followed by hand-pulling of existing weeds plus adequate mulch coverage Water more frequently to out-compete the weeds Apply post-emergent herbicide to all plants in the bed Remove all mulch to expose weeds to sunlight for desiccation None 24. What is the primary purpose of a grading plan in a landscaping project? What is the primary purpose of a grading plan in a landscaping project?Deselect Answer To show the location of all plant materials To indicate existing and proposed elevations, drainage patterns, and slopes across the site To specify the type and depth of hardscape materials To document the irrigation system layout None 25. What is the function of a check valve built into a sprinkler head? What is the function of a check valve built into a sprinkler head?Deselect Answer To increase water pressure at the head To prevent low-head drainage, stopping water from draining out of the lowest heads in a zone after the valve shuts off To filter debris from the nozzle To adjust the arc of the sprinkler head None 26. When estimating materials for a concrete block retaining wall, what must be added to the calculated material quantity to account for waste and breakage? When estimating materials for a concrete block retaining wall, what must be added to the calculated material quantity to account for waste and breakage?Deselect Answer 2 to 3 percent 5 to 10 percent 15 to 20 percent 25 to 30 percent None 27. What is the minimum safe distance from energized overhead power lines when operating equipment in California? What is the minimum safe distance from energized overhead power lines when operating equipment in California?Deselect Answer 3 feet 6 feet 10 feet 15 feet None 28. What is the purpose of slope rounding in grading plans? What is the purpose of slope rounding in grading plans?Deselect Answer To create perfectly flat areas for planting To blend graded slopes smoothly into existing natural or paved areas, preventing abrupt breaks in grade that look unnatural and concentrate erosion To steepen slopes for better drainage To create berms for wind protection None 29. If a landscape project requires 500 square feet of natural stone paving installed at a cost of $22 per square foot for material and $18 per square foot for labor, what is the total cost? If a landscape project requires 500 square feet of natural stone paving installed at a cost of $22 per square foot for material and $18 per square foot for labor, what is the total cost?Deselect Answer $11,000 $18,000 $20,000 $22,000 None 30. What is the purpose of weep holes in a mortared retaining wall? What is the purpose of weep holes in a mortared retaining wall?Deselect Answer For aesthetic decoration To allow water that accumulates behind the wall to drain through, relieving hydrostatic pressure that could cause the wall to fail To provide ventilation for plant roots behind the wall To allow inspection of the wall's interior None 31. What is the appropriate soil preparation for installing a new lawn from seed? What is the appropriate soil preparation for installing a new lawn from seed?Deselect Answer Till only the top 1 inch and overseed immediately Till to a depth of 6-8 inches, amend with compost, grade to final elevation, lightly rake to create a fine seedbed, and roll to firm the surface before seeding Apply seed directly to compacted existing soil without preparation Spray with herbicide and seed the following day None 32. What is the required action when a worker is injured on a landscaping job site? What is the required action when a worker is injured on a landscaping job site?Deselect Answer Continue work and document the injury at end of day Provide first aid, call 911 if needed, report the injury to Cal/OSHA within required timeframes (serious injuries and fatalities within 8 hours), complete a workers compensation claim, and document the incident Only report the injury if the worker files a complaint Injuries must only be reported if they result in lost work time None 33. What is the appropriate mortar mix ratio for laying concrete block (CMU) in landscape retaining walls? What is the appropriate mortar mix ratio for laying concrete block (CMU) in landscape retaining walls?Deselect Answer 1 part Portland cement : 1 part sand 1 part Portland cement : 2.25 to 3 parts masonry sand 1 part Portland cement : 5 parts sand 2 parts Portland cement : 1 part sand None 34. What is heat illness and what are the Cal/OSHA requirements for prevention on outdoor landscaping jobs? What is heat illness and what are the Cal/OSHA requirements for prevention on outdoor landscaping jobs?Deselect Answer Heat illness is a minor discomfort with no OSHA regulatory requirements Heat illness encompasses heat cramps, heat exhaustion, and heat stroke. Cal/OSHA Title 8 Section 3395 requires employers to provide water, shade, training, and acclimatization procedures for outdoor workers exposed to high temperatures Heat illness prevention is only required for indoor workers Water and shade are only required when temperature exceeds 100 degrees F None 35. What is the purpose of a site analysis in the landscape design process? What is the purpose of a site analysis in the landscape design process?Deselect Answer To create the final planting plan To evaluate existing conditions including topography, soil, drainage, sun exposure, and views before developing the design To calculate the irrigation water budget To select plant materials for the project None 36. What is the maximum distance between control joints in a concrete patio? What is the maximum distance between control joints in a concrete patio?Deselect Answer 8 feet 10 feet 12 feet 14 feet None 37. What does the abbreviation 'GPM' stand for in irrigation planning? What does the abbreviation 'GPM' stand for in irrigation planning?Deselect Answer Gallons per minute Grade per meter Gallons per month Ground pressure measure None 38. What is the recommended minimum depth of gravel base for a concrete paver patio installation? What is the recommended minimum depth of gravel base for a concrete paver patio installation?Deselect Answer 1 to 2 inches 3 to 4 inches 4 to 6 inches 8 to 10 inches None 39. What does the term 'hardscape' refer to in landscape design? What does the term 'hardscape' refer to in landscape design?Deselect Answer The planting of drought-tolerant plants only The non-living structural elements of a landscape such as patios, walkways, walls, and driveways The process of compacting soil before planting Any landscape element installed in hard clay soil None 40. What is the minimum recommended setback from property lines for a retaining wall over 30 inches in height? What is the minimum recommended setback from property lines for a retaining wall over 30 inches in height?Deselect Answer No setback is required Setbacks vary by local jurisdiction but typically 0 to 5 feet or more, and a building permit is usually required for walls over 30 inches retaining height Always 10 feet minimum statewide Always equal to the height of the wall None 41. A drip irrigation system covers 2,400 square feet of planting beds. If the system applies water at 0.5 inches per hour and a plant requires 1 inch of water per week, how many minutes per week should the system run? A drip irrigation system covers 2,400 square feet of planting beds. If the system applies water at 0.5 inches per hour and a plant requires 1 inch of water per week, how many minutes per week should the system run?Deselect Answer 60 minutes 90 minutes 120 minutes 150 minutes None 42. What is the proper pruning cut for removing a branch from a tree? What is the proper pruning cut for removing a branch from a tree?Deselect Answer Cut flush with the trunk to minimize the wound size Cut just outside the branch collar, leaving the branch collar intact Cut 6 inches from the trunk leaving a stub Cut at 45 degrees through the middle of the branch collar None 43. What is the primary function of a landscape lighting transformer? What is the primary function of a landscape lighting transformer?Deselect Answer To amplify the light output of low-voltage fixtures To step down standard 120-volt household current to 12 volts for low-voltage landscape lighting systems To provide backup power during outages To distribute electricity to multiple separate 120-volt circuits None 44. What personal protective equipment is required when applying pesticides or herbicides in California? What personal protective equipment is required when applying pesticides or herbicides in California?Deselect Answer No PPE is required for products labeled safe for consumer use PPE as specified on the pesticide label, which may include gloves, eye protection, respirator, and protective clothing Only rubber gloves are needed for any pesticide application PPE is only required for licensed pest control operators None 45. What is meant by the term 'plant hardiness zone' in the context of California landscaping? What is meant by the term 'plant hardiness zone' in the context of California landscaping?Deselect Answer A zone that prohibits certain invasive plants A geographic area defined by average annual minimum temperatures that indicates which plants can survive winter conditions in that location A zone designating areas with the hardest soil conditions A CSLB licensing classification for arborists None 46. When calculating cubic yards of topsoil needed to raise an area 4 inches deep over 900 square feet, what is the correct calculation? When calculating cubic yards of topsoil needed to raise an area 4 inches deep over 900 square feet, what is the correct calculation?Deselect Answer 900 / 4 = 225 cubic yards 900 x 4 / 12 = 300 cubic feet, then divide by 27 = 11.1 cubic yards 900 x 4 = 3,600 cubic yards 900 / 27 = 33.3 cubic yards None 47. What is the purpose of a French drain system? What is the purpose of a French drain system?Deselect Answer To provide water storage for irrigation To collect and redirect subsurface water away from areas prone to waterlogging or foundation damage through a perforated pipe surrounded by gravel To filter runoff before it enters storm drains To supply water to deep-rooted trees None 48. If a contractor needs to install 1,200 linear feet of 6-inch concrete curb and curb costs $18 per linear foot installed, what is the total cost? If a contractor needs to install 1,200 linear feet of 6-inch concrete curb and curb costs $18 per linear foot installed, what is the total cost?Deselect Answer $18,600 $21,600 $24,000 $25,200 None 49. How is the slope of a drainage swale typically expressed? How is the slope of a drainage swale typically expressed?Deselect Answer In degrees of angle from horizontal As a percentage (vertical rise divided by horizontal run, multiplied by 100) In feet per mile As a ratio of height to width only None 50. When repairing a break in PVC irrigation pipe, which repair method is preferred? When repairing a break in PVC irrigation pipe, which repair method is preferred?Deselect Answer Wrap the break with waterproof tape Cut out the damaged section and replace with a slip-fix coupling or a new section of pipe with couplings on each end Apply epoxy putty over the crack Heat the pipe with a torch to reseal the crack None 51. What is the purpose of deep root watering for established trees in California's dry summers? What is the purpose of deep root watering for established trees in California's dry summers?Deselect Answer To wash salt accumulations from the soil surface To deliver water and oxygen to tree roots beyond the reach of surface irrigation, supporting trees that may not receive adequate surface irrigation during drought To cool the soil temperature around tree roots To prevent root growth under hardscape None 52. What is the purpose of a planting plan's plant schedule? What is the purpose of a planting plan's plant schedule?Deselect Answer To list only the cost of each plant material To provide the botanical name, common name, size, quantity, and spacing for each plant specified in the design To specify only the irrigation requirements for each plant To document the soil amendment ratios for each planting area None 53. What is the recommended time of year to prune most flowering shrubs that bloom in spring? What is the recommended time of year to prune most flowering shrubs that bloom in spring?Deselect Answer Immediately before spring bloom Immediately after spring bloom, while the plant is still in active growth Midsummer when growth has hardened off Late winter while the plant is dormant None 54. What is a bioswale and what is its primary function in landscape design? What is a bioswale and what is its primary function in landscape design?Deselect Answer A low-lying area used for storing construction equipment A gently sloped, planted drainage channel that slows and filters stormwater runoff before it enters storm drain systems A type of raised planting bed for vegetables An underground water storage tank for irrigation None 55. When designing an irrigation system, what is the minimum water pressure typically required at the sprinkler head for proper operation? When designing an irrigation system, what is the minimum water pressure typically required at the sprinkler head for proper operation?Deselect Answer 10 PSI 15 PSI 25 PSI 50 PSI None 56. What type of pipe is most commonly used for irrigation mainlines in residential landscaping? What type of pipe is most commonly used for irrigation mainlines in residential landscaping?Deselect Answer ABS plastic pipe Schedule 40 or Class 200 PVC pipe Copper pipe Galvanized steel pipe None 57. What is required when a landscape contractor discovers a wasp nest while performing maintenance work? What is required when a landscape contractor discovers a wasp nest while performing maintenance work?Deselect Answer Continue working and disturb the nest as little as possible Stop work in the area, have non-essential workers step back to a safe distance, assess whether a licensed pest control operator is needed, and follow proper removal procedures before continuing Use a garden hose to spray and agitate the nest Immediately pour gasoline on the nest and ignite it None 58. What is the purpose of a job hazard analysis (JHA) in landscape contracting? What is the purpose of a job hazard analysis (JHA) in landscape contracting?Deselect Answer To estimate the cost of safety equipment for the project To identify potential hazards for each specific task before work begins, so controls can be put in place to prevent injuries To document accidents after they have occurred To satisfy insurance company requirements only None 59. What is the maximum recommended height for a concrete block retaining wall without engineering review in most California jurisdictions? What is the maximum recommended height for a concrete block retaining wall without engineering review in most California jurisdictions?Deselect Answer 2 feet 3 feet 4 feet 6 feet None 60. What is the purpose of a smart irrigation controller? What is the purpose of a smart irrigation controller?Deselect Answer To control landscape lighting on a separate circuit To automatically adjust irrigation run times based on local weather data (ET, rainfall, temperature) to avoid watering when rain has occurred or is forecasted To increase water pressure in irrigation systems To detect and report pipe leaks to the homeowner None 61. What Cal/OSHA safety requirement applies to landscape workers operating backpack or handheld gas-powered equipment? What Cal/OSHA safety requirement applies to landscape workers operating backpack or handheld gas-powered equipment?Deselect Answer No specific safety requirements for handheld equipment Hearing protection is required when operating equipment that produces 90 decibels or more (Cal/OSHA Title 8 Section 5096) and most gas-powered landscape equipment exceeds this threshold Hearing protection is only required in industrial facilities Workers must wear earplugs only if they personally feel the noise is bothersome None 62. What is the primary purpose of hydroseeding in landscaping construction? What is the primary purpose of hydroseeding in landscaping construction?Deselect Answer To apply herbicides over large areas To establish temporary or permanent vegetation on disturbed slopes for erosion control using a water and seed slurry mixture To irrigate newly installed sod To apply fertilizer to existing lawns None 63. When should erosion control measures be installed on a landscaping project? When should erosion control measures be installed on a landscaping project?Deselect Answer After all grading is complete and the site is ready for planting Before grading begins, with additional measures installed as grading progresses and before rain events Only during the rainy season (October through April) Only when the project disturbs more than 5 acres None 64. What is the recommended approach for fertilizing an established drought-tolerant California native plant garden? What is the recommended approach for fertilizing an established drought-tolerant California native plant garden?Deselect Answer Apply high-nitrogen fertilizer monthly during the growing season Minimal or no fertilization is typically needed, as most California natives are adapted to low-nutrient soils and over-fertilizing can cause excessive growth and reduced plant health Apply balanced fertilizer (equal N-P-K) every two weeks year-round Apply high-phosphorus fertilizer to encourage blooming None 65. What is the minimum thickness for a residential concrete patio slab? What is the minimum thickness for a residential concrete patio slab?Deselect Answer 2 inches 3 inches 4 inches 6 inches None 66. What is the proper way to store flammable fuels (gasoline) for landscape equipment on a job site? What is the proper way to store flammable fuels (gasoline) for landscape equipment on a job site?Deselect Answer In any sealed container in the equipment trailer In approved Type I or Type II safety cans away from heat sources, ignition sources, and in quantities not exceeding regulatory limits In the open bed of the work truck in any container In sealed plastic water bottles to prevent confusion with drinking water None 67. What type of irrigation head is most water-efficient for large turf areas? What type of irrigation head is most water-efficient for large turf areas?Deselect Answer Fixed-spray nozzle heads High-efficiency rotating nozzles (HE rotary nozzles) or rotor heads Mist nozzles Soaker hose None 68. What is the minimum slope required for positive drainage away from a building foundation? What is the minimum slope required for positive drainage away from a building foundation?Deselect Answer 0.5% 1% 2% 5% None 69. What ANSI standard governs safe work practices for tree care operations? What ANSI standard governs safe work practices for tree care operations?Deselect Answer ANSI A300 (Pruning Standards) ANSI Z133 (Arboricultural Safety Standards) ANSI Z535 (Safety Signs) ANSI/ISEA 107 (High-Visibility Apparel) None 70. What is the Cal/OSHA requirement for tool box meetings (safety meetings) on construction sites? What is the Cal/OSHA requirement for tool box meetings (safety meetings) on construction sites?Deselect Answer Safety meetings are optional for landscaping crews of fewer than 5 workers Regular safety meetings (tailgate meetings) must be conducted and documented — Cal/OSHA recommends weekly meetings covering job-specific hazards Safety meetings are only required when OSHA inspectors are present Safety meetings are the contractor's option and are never required by Cal/OSHA None 71. What protective equipment is required for workers trimming hedges using power hedge trimmers near public foot traffic? What protective equipment is required for workers trimming hedges using power hedge trimmers near public foot traffic?Deselect Answer No barriers are needed if workers are careful Appropriate PPE for the operator (eye protection, gloves) plus barriers, cones, or flagging to protect bystanders from debris and the cutting equipment Only safety glasses for the operator PPE is optional if the hedge trimmer has blade guards None 72. When estimating labor for a landscaping project, what factor should be applied to account for crew downtime, travel, and setup? When estimating labor for a landscaping project, what factor should be applied to account for crew downtime, travel, and setup?Deselect Answer No adjustment is needed if the crew is efficient Multiply productive hours by a factor of 1.2 to 1.3 to get total labor hours to bill Divide productive hours by 0.5 Add exactly 1 hour per day per worker None 73. What is the recommended spacing for installing landscape lighting along a walkway? What is the recommended spacing for installing landscape lighting along a walkway?Deselect Answer Every 20 to 30 feet for adequate illumination Every 6 to 10 feet for path lights to provide overlapping illumination patterns along walkway edges Only at the beginning and end of the walkway Every 2 feet for maximum brightness None 74. What is the correct way to safely operate a chainsaw when bucking (cutting) a log on the ground? What is the correct way to safely operate a chainsaw when bucking (cutting) a log on the ground?Deselect Answer Stand directly over the cut with feet on both sides of the log Stand to the side of the cut, maintain a firm grip with both hands, and be aware of kickback zone at the upper tip of the bar Use one hand to guide the cut while the other steadies the log Always cut with the tip of the bar for maximum efficiency None 75. What is the purpose of a zone valve in an irrigation system? What is the purpose of a zone valve in an irrigation system?Deselect Answer To regulate overall water pressure at the point of connection To control the flow of water to a specific group of irrigation heads, allowing separate programming of different areas To increase water pressure in low-flow areas To filter debris from entering the irrigation pipes None 76. When planting a 15-gallon container tree, how wide should the planting hole be compared to the root ball? When planting a 15-gallon container tree, how wide should the planting hole be compared to the root ball?Deselect Answer The same width as the root ball Two to three times the diameter of the root ball, but no deeper than the root ball height Four to five times the diameter of the root ball and twice as deep The hole should always be perfectly square and 2 feet on each side regardless of tree size None 77. What is the recommended planting depth for balled-and-burlapped trees? What is the recommended planting depth for balled-and-burlapped trees?Deselect Answer At least 6 inches below surrounding grade With the root flare (trunk flare) at or slightly above finish grade With the burlap fully buried below grade Twice the depth of the root ball None 78. What is the required minimum safe clearance from a wood chipper's infeed when feeding branches? What is the required minimum safe clearance from a wood chipper's infeed when feeding branches?Deselect Answer The operator may reach into the infeed as needed Keep hands and body at least 10 feet from the infeed opening; use feed sticks for short material 2 feet is adequate clearance for experienced operators Stand directly behind the chipper and push material in with hands None 79. If a 3/4-inch valve has a maximum flow of 10 GPM on a level surface, what is the maximum flow when there is a 25-foot elevation DROP in the same system? If a 3/4-inch valve has a maximum flow of 10 GPM on a level surface, what is the maximum flow when there is a 25-foot elevation DROP in the same system?Deselect Answer 16 GPM 14 GPM 12 GPM 10 GPM None 80. When calculating the amount of sod needed for a rectangular lawn area measuring 40 feet by 25 feet, how many square feet of sod are required? When calculating the amount of sod needed for a rectangular lawn area measuring 40 feet by 25 feet, how many square feet of sod are required?Deselect Answer 650 square feet 750 square feet 1,000 square feet 1,100 square feet None 81. What type of material is typically used to prevent weed growth beneath decomposed granite pathways? What type of material is typically used to prevent weed growth beneath decomposed granite pathways?Deselect Answer Plastic sheeting (polyethylene film) Woven or non-woven landscape fabric (geotextile) Sand base only Concrete base with DG on top None 82. When preparing a landscaping bid, which cost item is typically included as overhead rather than as a direct project cost? When preparing a landscaping bid, which cost item is typically included as overhead rather than as a direct project cost?Deselect Answer Cost of plant materials delivered to the job site Labor hours for installation crew on the project Vehicle insurance and office rent Rental equipment needed specifically for the project None 83. What pruning technique is used to gradually remove a large dead or hazardous tree to minimize damage risk? What pruning technique is used to gradually remove a large dead or hazardous tree to minimize damage risk?Deselect Answer Straight felling (cutting the trunk at the base) Piece-by-piece removal (sectional dismantling), removing branches and sections of the trunk from top down using ropes and rigging Using a large crane to lift the entire tree in one piece Waiting for the tree to fall naturally None 84. What is the proper action when a tree is found to have a large dead branch hanging over a public walkway? What is the proper action when a tree is found to have a large dead branch hanging over a public walkway?Deselect Answer Leave it until the next scheduled pruning visit Immediately remove the hazard using ANSI Z133 safety procedures, obtaining permits if required, and notifying the property owner Tape off the area below and continue other maintenance work Apply wound dressing to the branch and schedule removal for next month None 85. What is the proper sequence for installing concrete paving stones (pavers)? What is the proper sequence for installing concrete paving stones (pavers)?Deselect Answer Set edge restraints, prepare base, lay bedding sand, install pavers, compact, add joint sand Prepare base, lay bedding sand, install pavers, set edge restraints, compact, add joint sand Install pavers, set edge restraints, prepare base, compact, add joint sand Prepare base, set edge restraints, install pavers, add joint sand, compact, lay bedding sand None 86. What is the proper method for testing soil compaction in the field? What is the proper method for testing soil compaction in the field?Deselect Answer Visual inspection only Nuclear density gauge or sand cone test to measure actual density against a target specification Poking the soil with a steel rod Watering the area and observing drainage time None 87. When installing a flagstone patio in mortar, what is the recommended mortar bed thickness? When installing a flagstone patio in mortar, what is the recommended mortar bed thickness?Deselect Answer 1/4 to 1/2 inch 3/4 to 1-1/2 inches 2 to 3 inches 4 to 6 inches None 88. A landscaping contractor is preparing a bid for a project that requires 50 cubic yards of decomposed granite. If DG is sold by the ton and weighs approximately 1.35 tons per cubic yard, how many tons must be ordered? A landscaping contractor is preparing a bid for a project that requires 50 cubic yards of decomposed granite. If DG is sold by the ton and weighs approximately 1.35 tons per cubic yard, how many tons must be ordered?Deselect Answer 52 tons 67.5 tons 75 tons 81 tons None 89. When calculating the water needs for a newly planted tree in a California summer, what information is MOST important? When calculating the water needs for a newly planted tree in a California summer, what information is MOST important?Deselect Answer The price of the tree at the nursery The species water requirement, the size of the root ball, and the local ET rate Only the height of the tree The color of the tree's foliage None 90. What is the primary purpose of a silt fence on a construction site? What is the primary purpose of a silt fence on a construction site?Deselect Answer To mark property boundaries for the grading crew To intercept and slow sheet flow runoff, allowing sediment to settle before water leaves the site To prevent workers from entering excavated areas To support temporary irrigation lines during construction None 91. When building a garden wall, what is the maximum recommended batter (backward lean or taper) for a dry-stacked stone wall? When building a garden wall, what is the maximum recommended batter (backward lean or taper) for a dry-stacked stone wall?Deselect Answer No lean is acceptable in dry-stack walls 1 inch of lean per foot of wall height 6 inches of lean per foot of wall height The wall must be perfectly plumb None 92. What is the purpose of a soils report in landscape project planning? What is the purpose of a soils report in landscape project planning?Deselect Answer To determine only the pH of the soil To characterize soil texture, structure, drainage, compaction, pH, and nutrient levels to guide grading, planting, and amendment decisions To identify the types of weeds present on the site To estimate the weight of topsoil needed for the project None 93. What reinforcement is typically used in residential concrete flatwork to help control cracking? What reinforcement is typically used in residential concrete flatwork to help control cracking?Deselect Answer 3/4-inch rebar on 12-inch centers both ways #3 or #4 rebar or 6x6 welded wire mesh No reinforcement is needed for concrete under 6 inches thick Only expansion joints are used, no steel reinforcement None 94. What does LOTO (Lockout/Tagout) mean in landscape equipment maintenance? What does LOTO (Lockout/Tagout) mean in landscape equipment maintenance?Deselect Answer A system for logging work orders and tracking completed tasks A safety procedure that prevents the unexpected startup of equipment during maintenance by de-energizing and locking the power source before working on or near the equipment A method for securing equipment trailers to prevent theft A labeling system for pesticide containers None 95. What is meant by ET (evapotranspiration) in irrigation scheduling? What is meant by ET (evapotranspiration) in irrigation scheduling?Deselect Answer The amount of water lost from the soil by evaporation from the soil surface plus transpiration from plants The efficiency of the irrigation system measured in percentage The pressure drop across irrigation valves The elevation difference between the water source and the irrigated area None 96. Before beginning excavation on a landscaping project, what is the contractor legally required to do in California? Before beginning excavation on a landscaping project, what is the contractor legally required to do in California?Deselect Answer Obtain a grading permit only Contact Underground Service Alert (USA/Dig Safe 811) to have underground utilities located and marked Conduct a soil test Notify the adjacent property owners in writing None 97. What is the difference between a rotary sprinkler head and a fixed spray head in terms of precipitation rate? What is the difference between a rotary sprinkler head and a fixed spray head in terms of precipitation rate?Deselect Answer Rotary heads apply water much faster than spray heads Fixed spray heads apply water at a much higher precipitation rate (1.2-2.0 inches per hour) than rotary heads (0.3-0.7 inches per hour), which is why spray heads are more prone to runoff on slopes Both types apply water at exactly the same rate Precipitation rate varies only with nozzle color, not head type None 98. What is the minimum height for handrails on outdoor steps in California? What is the minimum height for handrails on outdoor steps in California?Deselect Answer 30 inches 34 inches 36 inches 42 inches None 99. What soil amendment is most commonly used to improve drainage in heavy clay soils for California landscape plantings? What soil amendment is most commonly used to improve drainage in heavy clay soils for California landscape plantings?Deselect Answer Additional clay or silt Organic compost Fine sand only Peat moss None 100. Which type of soil particle is the smallest and contributes most to poor drainage in landscape applications? Which type of soil particle is the smallest and contributes most to poor drainage in landscape applications?Deselect Answer Sand Silt Clay Gravel None 1 out of 100 Related
