A sketch intended to represent a closed rectilinear perimeter does not return to its starting point using the recorded runs and directions. What is the appropriate first response?
Correct Answer
A) Check and reconcile the measurements and entries against the building
A closed rectilinear outline requires balanced signed horizontal and vertical runs. Nonclosure signals inconsistent sketch inputs or assumptions, so check measurements, directions, offsets and entries against reliable observations. An irregular building remains a closed shape but may require actual angles. Do not invent a length or assume one specific error cause without investigation.
Why This Is the Correct Answer
Option A is correct because a nonclosing sketch signals that the recorded runs, directions or entries do not match the real perimeter. Checking the measurements, directions, offsets and entries against reliable observations of the building identifies the actual source of the error. Only after reconciliation can the sketch and the resulting area be relied upon.
Why the Other Options Are Wrong
Option B: Force one dimension to close without checking any of the others
Option B, forcing one dimension to close without checking the others, invents a length to hide the error. The real mistake may be in a different run, a direction or an offset, so the sketch and area could still be wrong.
Option C: Declare that the house has no closed outline and stop measuring
Option C, declaring that the house has no closed outline and stopping, is wrong because a building perimeter is a closed shape, even when it is irregular. Nonclosure points to inconsistent sketch inputs, not to a building without a closed outline.
Option D: Label the area as approximate and simply ignore the closure discrepancy
Option D, labeling the area approximate and ignoring the closure discrepancy, leaves a known error uninvestigated. A label does not make inconsistent measurements reliable, and the reported area could be materially misstated.
Out and back must match
Total runs east must equal total runs west, and total runs north must equal total runs south. If the walk around the house does not end where it started, recheck the numbers before trusting the sketch.
How to use: Use this when a sketch program or hand drawing shows a gap at the closing corner.
Exam Tip
When a question describes an inconsistency in data, look for the answer that investigates and reconciles the data. Choices that force, ignore or abandon the problem are usually distractors.
Common Mistakes to Avoid
- -Adding a made-up length to the last wall so the sketch closes
- -Reporting the area as approximate without finding the error
- -Assuming the error must be in the last wall measured
Concept Deep Dive
Analysis
This question tests what an appraiser should do when a building sketch fails to close. In a closed rectilinear outline, the signed horizontal runs and the signed vertical runs must each balance to zero, so a gap means at least one measurement, direction, offset or data entry is inconsistent. The sound first step is to investigate and reconcile the inputs against the actual building rather than forcing or ignoring the error.
Background Knowledge
Gross living area calculations depend on an accurate sketch of the exterior perimeter. For a rectilinear building, runs in opposite directions must cancel so the outline returns to its starting point. Irregular buildings are still closed shapes but may need actual angles rather than right-angle assumptions.
Real-World Application
An appraiser enters exterior measurements into sketch software and the outline ends 2 feet short of the starting corner. Remeasuring reveals a bump-out wall that was recorded with the wrong direction. Correcting that entry closes the sketch and changes the gross living area.
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