CT Land Surveyor common mistakes
CT Land Surveyor · Understand the traps and how to avoid them.
Treating a found monument as controlling without first evaluating whether it is the original corner or a later replacement, and accepting it on the basis of position alone.
Candidates memorize 'monuments control over distance and direction' as a slogan and skip the evidentiary step that gives the rule meaning. Retracement problems on this exam typically hinge on whether the found evidence is the original monument, a perpetuated monument, or an intruder, and candidates who jump straight from 'found it' to 'it controls' miss the reasoning the item is testing.
What to do instead
Work a fixed sequence on every retracement item: identify the record evidence, classify each found object by type and condition, test it against the record calls and the surrounding physical evidence, then state the weight it carries. Practice writing one sentence of justification for each monument before using it in a computation.
Applying proportional adjustment to a boundary line whose record dimensions are consistent and whose monuments are undisturbed, because the closing line does not close exactly.
Candidates overlearn the misclosure-and-adjustment routine from traverses and apply it indiscriminately. They do not distinguish between a traverse misclosure (an error to be distributed) and a record boundary that is being retraced, where the record is presumed correct and the question is one of evidence, not of error distribution.
What to do instead
Before any adjustment, ask what is being adjusted and why. For retracements, test the record figure for internal consistency and geometric possibility first; only adjust when the evidence shows the original survey was defective. Drill a set of short scenarios where the correct answer is 'no adjustment' and articulate the reason.
Computing an area or a coordinate by formula without a sketch, then reporting a result whose sign, quadrant, or units are wrong.
Under time pressure candidates go straight to the calculator or the coordinate list. Sign errors in bearings, quadrant confusion in inverse computations, and unit slips between feet, chains, and meters are the most frequent arithmetic failures, and they are invisible without a picture to check against.
What to do instead
Draw a labeled sketch with approximate bearings and distances before computing, and sketch the answer afterward to confirm it is where it should be. Carry units explicitly through every step and do a rough order-of-magnitude check on every area and length.
Using a magnetic bearing from an old deed or map directly in a modern computation without determining the magnetic declination at the date of the original survey.
Candidates see a bearing in the record and treat it as an angle usable as-is. They forget that magnetic bearings are date-stamped by declination, that older surveys in Connecticut were often referenced to a local or assumed meridian, and that a bearing must be reduced to a common basis before it can be compared with modern observations.
What to do instead
For any record bearing, record its basis (true, magnetic with date, or assumed) before using it. Practice converting between bases using declination at the survey date, and always state the assumption in the answer. If the basis is unknown, treat the bearing as a check on relative geometry rather than as an absolute direction.
Assuming that recording a map or deed, by itself, settles a boundary or extinguishes an adjoiner's rights.
Candidates conflate the recording system with adjudication. Recording provides notice and priority; it does not resolve a dispute over location or cure a defective description. Items that describe a recorded map conflicting with possession or with an unrecorded instrument are testing exactly this distinction.
What to do instead
Separate three questions on every title item: what was conveyed, whether it was recorded, and who had notice. Then ask whether any doctrine (adverse possession, practical location, estoppel, prescription) operates independently of the record. Answer the question actually asked rather than defaulting to 'the record controls'.
Answering a Connecticut statute or regulation item from general surveying knowledge or from another state's rule instead of from the specific Connecticut provision.
Most candidates learned land surveying law in a national or neighboring-state framework. Connecticut's provisions on survey standards, map filing, monumentation, and licensure have specific thresholds and wording, and plausible-sounding general answers are frequently the distractors.
What to do instead
Build a one-page summary of the Connecticut provisions you are responsible for, with the actual numbers and the actual triggers, and review it until you can state each from memory. When an item cites a statute, answer from the cited text, not from practice habit. Flag any provision you cannot state precisely and verify it before the exam.
Performing a least-squares adjustment or a control network design without checking the geometry of the network first.
Candidates focus on the arithmetic and software output and neglect the underlying geometry. Poorly conditioned networks, weak intersections, and short baselines produce small residuals that look like good results, so the computed precision appears acceptable while the actual positions are unreliable.
What to do instead
Before adjusting, evaluate geometry: intersection angles, baseline lengths relative to the required accuracy, redundancy, and the number of independent checks. Interpret the adjustment's error ellipse and reference factor, not just the residuals. Practice identifying a weak network from a description of its stations and observations.
Selecting a photogrammetric or remote-sensing product by resolution alone, ignoring accuracy standards, scale, and the intended use.
Candidates equate smaller pixels or larger scale with better data. They overlook that positional accuracy, vertical accuracy, and classification accuracy are separate specifications, and that a product adequate for mapping a wetland boundary is not adequate for a boundary survey or a construction stakeout.
What to do instead
For each product, state the required horizontal and vertical accuracy for the intended use, then compare the product's stated accuracy against it. Learn to distinguish ground sample distance from map scale and from accuracy, and practice matching products to uses.
Preparing a subdivision or site plan that meets the geometric requirements but ignores the regulatory submission requirements, such as the required certifications, notes, and signatures.
Candidates treat plan preparation as a drafting and geometry exercise. In practice a plan is rejected or a certificate is defective because a required statement, signature, or note is missing, and exam items frequently turn on what must appear on the face of the map.
What to do instead
Maintain a checklist of required map elements for the type of plan being prepared and apply it to every practice plan. Practice reviewing a described plan for missing certifications and notes, and be able to state who must sign and what the signature certifies.
Treating an ethical question as a client-service question, choosing the answer that best serves the client or the employer rather than the answer that protects the public.
Candidates bring workplace instincts into the exam. The professional obligation runs to the public health, safety, and welfare, and to candor with the board and with the record, so the 'helpful' answer is often the wrong one, particularly where a client asks for a boundary location the surveyor cannot support.
What to do instead
On every ethics item, identify the parties and their interests, then ask which answer discharges the duty to the public and to the integrity of the record. Practice declining requests to certify an unsupported location or to alter a record, and be able to describe the correct course of action and to whom it should be reported.