CFP Site Evaluation & Layout 3 — Questions and Answers
Question 1: An easement is discovered running along the rear of a property where a fence is planned. What is the installer's primary responsibility?
- Install the fence within the easement since the homeowner owns the land
- Verify with the easement holder whether a fence is permitted within it (Correct answer)
- Ignore the easement because fence permits supersede easements
- Only install the fence if it is at least 10 feet from any utility pole
Correct answer: Verify with the easement holder whether a fence is permitted within it
Easements grant rights to third parties, and the fence may need to be removable or excluded from the easement area; always verify before installing.
Question 2: What is the purpose of performing a 3-4-5 triangle check during fence layout?
- To calculate the number of posts needed for a given run
- To verify that a corner is perfectly square (90 degrees) (Correct answer)
- To determine the slope of the terrain
- To check that batter boards are level with each other
Correct answer: To verify that a corner is perfectly square (90 degrees)
The 3-4-5 method uses the Pythagorean theorem to confirm a 90-degree corner angle, ensuring fence lines run perpendicular at corners.
Question 3: Which of the following site conditions most significantly increases the risk of post frost heave?
- Sandy, well-drained soil in a warm climate
- Clay-rich soil in a region with deep freeze-thaw cycles (Correct answer)
- Rocky soil with shallow bedrock
- Dry desert soil with no annual rainfall
Correct answer: Clay-rich soil in a region with deep freeze-thaw cycles
Clay soils retain moisture and expand significantly during freeze-thaw cycles, creating upward pressure that can push posts out of the ground.
Question 4: When evaluating a site where the fence will be near a body of water, which additional site factor must be assessed?
- Daily tidal fluctuation only
- Flood zone designation and local floodplain regulations (Correct answer)
- Direction of prevailing winds across the water only
- Swimming pool permit requirements
Correct answer: Flood zone designation and local floodplain regulations
Sites in designated flood zones may have height restrictions, material requirements, or permit conditions for fences that can obstruct water flow.
Question 5: A homeowner asks you to install a fence along a road right-of-way. What should you do first?
- Install the fence since the homeowner pays taxes on the land
- Contact the local municipality or road authority to determine if a permit is required (Correct answer)
- Use a shorter fence height to avoid right-of-way conflicts
- Call 811 before digging and proceed without other checks
Correct answer: Contact the local municipality or road authority to determine if a permit is required
Road rights-of-way are controlled by governmental entities, and fences within them typically require permits and must meet specific setback and sight-line requirements.
Question 6: During a site evaluation, you observe that one side of the property has significant wind exposure while the other side is sheltered. How should this influence fence design?
- Use the same fence style throughout for consistent appearance
- Select a solid panel design for the windward side and open picket for the leeward side (Correct answer)
- Increase post spacing on the exposed side to allow wind to pass through posts
- Use lighter-gauge posts on the sheltered side to reduce cost
Correct answer: Select a solid panel design for the windward side and open picket for the leeward side
Exposed windward sides require more wind-load resistance, while sheltered sides may use more open designs, balancing structural needs with aesthetics.
Question 7: What does 'interpolating grade' mean when performing a fence site survey on uneven terrain?
- Averaging the highest and lowest elevations to set a uniform post height
- Determining intermediate ground elevations between known reference points (Correct answer)
- Calculating the angle of repose for fill soil
- Measuring the depth to bedrock at each post location
Correct answer: Determining intermediate ground elevations between known reference points
Interpolating grade involves estimating or measuring ground elevations between established survey points to plan post heights and panel transitions on sloped terrain.
CFP Site Evaluation & Layout 3
An easement is discovered running along the rear of a property where a fence is planned.
What is the installer's primary responsibility?