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IN Land Surveyor practice questions

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Question 1Land Boundary Surveying and Legal Principles

A surveyor records a bearing as N 42°15' E. Which quadrant does this bearing fall in under the quadrantal bearing system?

  1. Northeast Correct answer.
  2. Southwest
  3. Southeast
  4. Northwest

Explanation

Quadrantal bearings name the quadrant with the reference meridian first (N or S) and the direction of rotation second (E or W). Because the angle is measured eastward from north, the line lies in the northeast quadrant. A northwest bearing would be written N 42°15' W.

Question 2Land Boundary Surveying and Legal Principles

In the metes-and-bounds description of a parcel, the phrase 'thence South 88 degrees East, 250.00 feet to a set iron pin' primarily serves what function?

  1. It identifies the adjoining owner along that line
  2. It records the elevation of the iron pin above datum
  3. It establishes the area of the parcel in square feet
  4. It gives the course and distance of one boundary line between two monuments Correct answer.

Explanation

A metes-and-bounds call combines a course (bearing) and a distance that carry the boundary from one monument to the next. The call 'to a set iron pin' closes that line at a physical monument. Area, elevation, and adjoining ownership are not conveyed by a course-and-distance call.

Question 3Land Boundary Surveying and Legal Principles

A deed describes a parcel as 'the North half of the Northwest quarter of Section 14, Township 5 North, Range 3 East.' How many acres does this parcel contain under the Public Land Survey System?

  1. 160 acres
  2. 320 acres
  3. 80 acres Correct answer.
  4. 40 acres

Explanation

A section contains 640 acres, and each quarter section contains 160 acres. Halving the quarter section gives one-eighth of the section, or 80 acres. The aliquot-parts description therefore yields an 80-acre parcel.

Question 4Land Boundary Surveying and Legal Principles

Which term describes a monument that is called for in the deed and therefore controls the location of the boundary line?

  1. A reference monument
  2. A witness corner
  3. A called-for monument Correct answer.
  4. A temporary benchmark

Explanation

A called-for monument is one specifically named in the deed, and it is generally the highest-ranked evidence of the boundary location. Natural monuments called for in the deed ordinarily control courses and distances. Reference monuments and witness corners serve supporting roles rather than being the controlling call.

Question 5Land Boundary Surveying and Legal Principles

A boundary surveyor finds that the deed distance between two original stone monuments is 500.00 feet, but the measured distance between the stones is 497.30 feet. Under the rules of construction, which element controls the boundary?

  1. The computed area of the parcel
  2. The deed distance of 500.00 feet
  3. The measured distance of 497.30 feet
  4. The called-for stone monuments Correct answer.

Explanation

Monuments called for in the deed generally control over courses and distances because they are the most reliable physical evidence of the original intent. The recorded distance yields to the actual location of the called-for stones. The surveyor reports the measured distance but locates the line at the monuments.

Question 6Land Boundary Surveying and Legal Principles

In a state that recognizes the recording of deeds, what is the primary purpose of recording a deed in the county recorder's office?

  1. To establish the property's assessed value
  2. To guarantee that the deed's boundary is legally correct
  3. To give constructive notice of the conveyance to the public Correct answer.
  4. To transfer title automatically upon filing

Explanation

Recording provides constructive notice, so later purchasers and lienholders are charged with knowledge of the recorded instrument. Recording does not validate the survey or the boundary, nor does it set assessed value. Title transfer occurs through delivery and acceptance of the deed, not through the act of recording.

Question 7Land Boundary Surveying and Legal Principles

Which of the following best describes a 'lot and block' legal description?

  1. A description by a single monument and a general call
  2. A description by course and distance from a point of beginning
  3. A reference to a lot and block within a recorded subdivision plat Correct answer.
  4. A description by aliquot parts of a section

Explanation

A lot-and-block description identifies property by reference to a plat that has been recorded in the public records. The plat supplies the dimensions and boundaries, so the deed itself need not repeat them. This system is common in platted subdivisions.

Question 8Land Boundary Surveying and Legal Principles

A surveyor is asked to retrace a boundary and finds an original government corner marked by a stone with the required markings. What is the proper treatment of this corner?

  1. Ignore the stone unless its markings are legible in a photograph
  2. Hold the corner as the controlling position and evaluate the lines from it Correct answer.
  3. Average the stone's position with the computed position
  4. Reject the stone and set a new corner at the computed position

Explanation

An original corner monument found in place is the best available evidence of the government survey and controls the retracement. The surveyor accepts the corner and evaluates the surrounding lines relative to it. Setting a new corner or averaging positions would destroy the original evidence.

Question 9Land Boundary Surveying and Legal Principles

A deed contains both a called-for distance of 200.00 feet and a call 'to the bank of Mill Creek.' The measured distance to the creek bank is 212.00 feet. Which call controls the boundary?

  1. The 200.00-foot distance
  2. The average of the two calls
  3. The call to the bank of Mill Creek Correct answer.
  4. Neither call, until a court decides

Explanation

A natural monument such as a creek bank, when called for in the deed, generally controls over a stated distance. The distance is treated as approximate when it conflicts with the natural monument. The surveyor locates the line at the creek bank and reports the discrepancy.

Question 10Land Boundary Surveying and Legal Principles

Two adjoining deeds each describe the same 10-foot strip of land, creating an overlap. What is the most appropriate first step for the surveyor in resolving the conflict?

  1. Research the chain of title and the intent expressed in both deeds Correct answer.
  2. Locate the strip according to the most recent survey
  3. Assign the strip to the parcel with the larger area
  4. Split the overlap equally between the two owners

Explanation

An overlap or gap requires careful title research to determine the intent of the parties and the sequence of conveyances. The surveyor's role is to gather and analyze the evidence, not to arbitrarily divide the strip. Equitable division or area comparison has no basis in boundary law.

Question 11Land Boundary Surveying and Legal Principles

A riparian boundary along a non-navigable stream shifts gradually over time through accretion. How is the boundary line generally treated?

  1. It moves only after a formal boundary line agreement
  2. It remains fixed at the original surveyed location
  3. It moves with the gradual shift of the stream's thread or bank Correct answer.
  4. It is extinguished and the land becomes public

Explanation

Accretion is the gradual and imperceptible addition of land, and the boundary generally follows the shifting water feature. The riparian owner gains or loses land gradually without a new conveyance. Avulsion, by contrast, is a sudden change that does not move the boundary.

Question 12Land Boundary Surveying and Legal Principles

Which of the following is an example of unwritten transfer of title that a boundary surveyor may need to recognize?

  1. A plat recorded with the county
  2. Boundary by acquiescence arising from long recognition of a line Correct answer.
  3. A quitclaim deed recorded after the survey
  4. A title insurance policy issued at closing

Explanation

Doctrines such as acquiescence, practical location, and prescription can establish a boundary through conduct over time without a written instrument. These unwritten rights may override the record description. Deeds, plats, and title policies are written instruments and do not illustrate unwritten transfer.

Question 13Land Boundary Surveying and Legal Principles

A surveyor measures a traverse and computes a linear misclosure of 0.15 foot over a total traverse length of 3,000 feet. What is the relative precision of the traverse?

  1. 1:200,000
  2. 1:20,000 Correct answer.
  3. 1:200
  4. 1:2,000

Explanation

Relative precision is the total traverse length divided by the linear misclosure. Dividing 3,000 feet by 0.15 foot gives 20,000, expressed as 1:20,000. This ratio is a standard measure of traverse closure quality.

Question 14Land Boundary Surveying and Legal Principles

In preparing a boundary survey, a surveyor finds that the deed calls for the boundary to run to 'the center of the county road.' What is the most defensible interpretation of this call?

  1. The boundary is void because a road cannot be a monument
  2. The boundary follows the fence line nearest the road
  3. The boundary extends to the centerline of the road as the monument called for Correct answer.
  4. The boundary stops at the near edge of the right-of-way

Explanation

A call to the center of a road is a call to a monument, and the centerline generally controls the boundary location. The adjoining owner typically holds title to the center of the road, subject to the public easement. The surveyor does not substitute a fence line or the right-of-way edge for the deed call.

Question 15Land Boundary Surveying and Legal Principles

A surveyor discovers a discrepancy between the bearing stated in the deed and the bearing derived from the found monuments. Which principle guides the resolution?

  1. The most recent recorded bearing controls
  2. The bearing that yields the larger area controls
  3. Recorded bearings always control over monuments
  4. Monuments control over recorded bearings and distances Correct answer.

Explanation

Under the hierarchy of evidence, monuments called for in the deed generally control over bearings and distances. The recorded bearing is treated as subordinate when it conflicts with physical evidence. The surveyor reports the monument-derived bearing and notes the discrepancy.

Question 16Land Boundary Surveying and Legal Principles

A surveyor is establishing a new subdivision boundary and must set monuments at each lot corner. Which practice best supports future retraceability?

  1. Set durable monuments and record ties to them in the plat and field notes Correct answer.
  2. Rely on GPS coordinates without physical monuments
  3. Set temporary wooden stakes and rely on the deed distances
  4. Set monuments only at the exterior corners of the subdivision

Explanation

Durable monuments with recorded ties give future surveyors reliable physical evidence to retrace the boundary. The plat and field notes should document the monument positions and the basis of the survey. Temporary stakes disappear, and coordinates alone may not survive datum changes.

Question 17Land Boundary Surveying and Legal Principles

A deed describes a parcel by reference to a recorded plat, but the plat shows a different dimension than the deed text. Which document generally controls under the reference rule?

  1. The surveyor's field measurements
  2. The county assessor's parcel map
  3. The recorded plat, because the deed incorporates it by reference Correct answer.
  4. The deed text, because it is the primary instrument

Explanation

When a deed incorporates a recorded plat by reference, the plat becomes part of the description and generally controls over inconsistent deed text. The reference rule treats the plat as the parties' adopted depiction of the parcel. Field measurements and assessor maps do not displace the recorded plat.

Question 18Land Boundary Surveying and Legal Principles

A boundary line was established by an unrecorded agreement between adjoining owners and marked by a fence that has been recognized for 25 years. Which doctrine most directly supports the boundary's validity?

  1. Boundary by agreement and acquiescence Correct answer.
  2. Dedication to public use
  3. Adverse possession of the entire parcel
  4. Prescriptive easement for access

Explanation

When adjoining owners agree on a boundary and then recognize and acquiesce in it for a long period, the doctrine of boundary by agreement and acquiescence can fix the line. The fence serves as evidence of the agreed line. Adverse possession, prescriptive easement, and dedication address different legal interests.

Question 19Land Boundary Surveying and Legal Principles

A surveyor must compute the area of a parcel described by a metes-and-bounds traverse. Which method is most appropriate for an irregular polygon with known coordinates?

  1. Averaging the lengths of the sides
  2. Scaling from a hand-drawn sketch
  3. Multiplying the longest side by the shortest side
  4. The coordinate method using the shoelace formula Correct answer.

Explanation

The coordinate method, often called the shoelace formula, computes the area of an irregular polygon directly from the coordinates of its vertices. It is precise and well suited to metes-and-bounds parcels. Scaling a sketch or multiplying side lengths does not yield a reliable area.

Question 20Land Boundary Surveying and Legal Principles

A surveyor finds that a deed's point of beginning is described as 'the intersection of the centerlines of Elm Street and Oak Street.' What is the surveyor's proper approach to locating this point?

  1. Use the deed's stated coordinates without field verification
  2. Locate the point at the corner of the nearest building
  3. Locate the physical centerlines of both streets and intersect them Correct answer.
  4. Use the nearest monument regardless of the streets

Explanation

A point of beginning defined by the intersection of two street centerlines is located by establishing both centerlines and intersecting them. The physical streets, as monumented, control over assumed coordinates. The surveyor verifies the intersection in the field before running the traverse.

Question 21Land Boundary Surveying and Legal Principles

A surveyor is asked to interpret the phrase 'subject to any easements of record' in a deed. What does this phrase most likely indicate about the parcel?

  1. The grantee receives a warranty against all easements
  2. The parcel is free of all encumbrances
  3. The title is burdened by recorded easements that the grantee accepts Correct answer.
  4. The easements are void unless surveyed

Explanation

The phrase 'subject to' means the grantee takes title with the burden of the recorded easements already in place. It limits the grantor's warranties regarding those encumbrances. It does not extinguish the easements or require a survey to validate them.

Question 22Land Boundary Surveying and Legal Principles

A surveyor finds a discrepancy of 0.05 foot between two independent measurements of the same boundary line. Which statement best describes the appropriate treatment of this discrepancy?

  1. It requires the boundary to be redefined by a new deed
  2. It falls within typical survey tolerance and may be reported as a minor difference Correct answer.
  3. It must be resolved by a court before the survey is filed
  4. It proves that one of the monuments has been moved

Explanation

Small differences within accepted survey tolerance are normal and do not by themselves indicate monument displacement. The surveyor documents the discrepancy and reports the accepted position. A 0.05-foot difference does not require a new deed or litigation.

Question 23Land Boundary Surveying and Legal Principles

Two original government corners are found, but the distance between them differs from the record by 1.2 feet. A surveyor is retracing the section line. Which approach best reflects proper retracement practice?

  1. Move one corner to match the record distance
  2. Hold the record distance and ignore the found corners
  3. Average the found corners and the record position
  4. Hold both original corners and proportion the interior lines between them Correct answer.

Explanation

When original corners are found, they control, and discrepancies in record distance are resolved by proportioning interior lines between the accepted corners. Moving or ignoring original corners destroys evidence and misplaces the boundary. Retracement preserves the original monument positions.

Question 24Land Boundary Surveying and Legal Principles

A deed describes a parcel as bounded by a non-navigable lake, and the lake has gradually receded over decades. Which boundary principle most likely applies to the newly exposed land?

  1. The exposed land is divided equally among all adjoining owners
  2. The exposed land automatically belongs to the state
  3. The boundary remains at the original meander line
  4. The riparian owner may gain the relicted land through accretion Correct answer.

Explanation

Gradual recession of a non-navigable lake is a form of accretion, and the riparian owner's boundary generally follows the receding water. The meander line is not the boundary; it is only a reference for the water's approximate position. Sudden avulsion would be treated differently.

Question 25Land Boundary Surveying and Legal Principles

A surveyor discovers that a long-standing fence does not match the deed line and that the neighbors have treated the fence as the boundary for many years. Which analysis best guides the surveyor's report?

  1. Report only the deed line and disregard the fence
  2. Evaluate whether the elements of boundary by acquiescence are satisfied and report the fence line as possible controlling evidence Correct answer.
  3. Recommend that the neighbors exchange quitclaim deeds immediately
  4. Report the fence line without any legal analysis

Explanation

A surveyor should evaluate the facts supporting doctrines such as acquiescence and report the fence line as potential controlling evidence. The surveyor does not make a legal determination but must not ignore unwritten rights. Disregarding the fence or reporting it without analysis would be incomplete.

Question 26Land Boundary Surveying and Legal Principles

Under the doctrine of adverse possession in Indiana, which of the following is NOT a required element?

  1. The possession must be actual.
  2. The possession must be hostile.
  3. The possession must be under color of title. Correct answer.
  4. The possession must be continuous for the statutory period.

Explanation

Indiana adverse possession requires actual, open and notorious, exclusive, hostile, and continuous possession for the statutory period (typically 10 years under IC 34-11-2-1 for actions for recovery of real property). Color of title is not required for a basic adverse possession claim; it may affect the extent of the area claimed but is not an element. Thus, color of title is not a necessary element.

Question 27Land Boundary Surveying and Legal Principles

A surveyor is retracing a boundary and finds a monument that is called for in the deed but is not the original government corner. According to Indiana boundary law, what is the proper hierarchy when the monument's location conflicts with a distance call in the deed?

  1. The surveyor should disregard both and use the recorded plat.
  2. The distance call prevails because it is a more precise measurement.
  3. The surveyor should average the monument and distance positions.
  4. The monument prevails because it is a natural or artificial object called for in the deed. Correct answer.

Explanation

Indiana follows the general rule that monuments called for in a deed control over courses and distances. A called-for monument, whether natural or artificial, is considered the best evidence of the boundary location because it is a physical object that the parties intended to fix the line. Therefore, the monument prevails over a conflicting distance call.

Question 28Land Boundary Surveying and Legal Principles

A deed describes a parcel as 'beginning at a point on the north line of Section 12, T.3N., R.2E., 100 feet west of the northeast corner thereof; thence west 200 feet; thence south 300 feet; thence east 200 feet; thence north 300 feet to the point of beginning.' Which type of legal description is this?

  1. Government rectangular survey
  2. Lot and block
  3. Metes and bounds Correct answer.
  4. Reference to a recorded plat

Explanation

This description uses metes (bearings and distances) and bounds (references to adjoining lines and monuments) to define the parcel. It starts at a point referenced to a government survey corner and then proceeds by courses and distances. Therefore, it is a metes-and-bounds description.

Question 29Land Boundary Surveying and Legal Principles

A surveyor discovers that a deed's point of beginning is described as 'the intersection of the centerlines of Elm Street and Oak Street,' but the streets, as built, do not intersect at a single point because Elm Street curves. How should the surveyor interpret the point of beginning?

  1. Use the point where the centerlines would intersect if both streets were extended as straight lines beyond their actual curves.
  2. Use the mathematical intersection of the centerlines extended as straight lines.
  3. Reject the description as void for uncertainty and require a new deed.
  4. Use the intersection of the centerlines as they exist on the ground, considering the curve of Elm Street. Correct answer.

Explanation

When a deed calls for the intersection of two streets, the surveyor should locate that intersection as it exists on the ground. If one street curves, the centerline of the street as built defines the intersection, not an imaginary straight-line extension. The call is given effect by applying it to the physical conditions, and the surveyor should use the actual centerline of Elm Street as constructed.

Question 30Land Boundary Surveying and Legal Principles

Which of the following is the most reliable evidence of the location of a boundary line that was originally established by a fence?

  1. The physical remains of the original fence or its associated monuments. Correct answer.
  2. The testimony of a witness who remembers the fence location.
  3. The deed distance from the corner to the fence.
  4. The current tax map showing the boundary.

Explanation

When a boundary is established by a fence, the physical remains of the fence or associated monuments are the best evidence of the original location. In boundary retracement, original monuments and physical evidence generally control over subsequent measurements and memory. Testimony and tax maps are secondary and may be less reliable.

Question 31Land Boundary Surveying and Legal Principles

A deed conveys a parcel 'to A for life, then to B and his heirs.' What type of estate does B have?

  1. Life estate pur autre vie
  2. Fee simple subject to A's life estate
  3. Remainder in fee simple Correct answer.
  4. Fee simple absolute

Explanation

A conveys a life estate to A, and B receives a remainder. Because the remainder is to B and his heirs, B has a fee simple remainder. A remainder is a future interest that becomes possessory upon the termination of the preceding estate. Thus, B holds a remainder in fee simple.

Question 32Land Boundary Surveying and Legal Principles

A surveyor is preparing a boundary survey and finds that the deed calls for the boundary to run along the bank of a non-navigable river. The river has gradually shifted over time, and the current bank is 20 feet from the bank as it existed when the deed was written. How should the surveyor locate the boundary?

  1. At the thread of the river as it existed at the time of the deed.
  2. At the original bank location as it existed at the time of the deed.
  3. At the current bank location, because the boundary follows the river as it moves by accretion. Correct answer.
  4. At the thread of the river as it currently exists.

Explanation

For a non-navigable river, the boundary typically follows the thread of the stream, but when the deed calls for the bank, the boundary is the bank. Under the doctrine of accretion, gradual and imperceptible changes in the river's course alter the boundary, so the current bank location controls. The surveyor should locate the boundary at the present bank, not the historical bank.

Question 33Land Boundary Surveying and Legal Principles

What is the legal effect of recording a deed in the county recorder's office in Indiana?

  1. It guarantees the accuracy of the legal description.
  2. It provides constructive notice of the deed's contents to subsequent purchasers. Correct answer.
  3. It validates the deed even if it was not properly executed.
  4. It transfers title from the grantor to the grantee.

Explanation

Recording a deed provides constructive notice to the world of the grantee's interest, which protects the grantee against subsequent purchasers who might otherwise take without notice. Recording does not validate a defective deed, guarantee the description, or itself transfer title; those depend on execution and delivery.

Question 34Land Boundary Surveying and Legal Principles

A surveyor is asked to retrace a boundary and finds an original government corner monument that is a stone with the required markings. The stone is slightly displaced from its original position due to frost heave, but the markings are intact. How should the surveyor treat this monument?

  1. Replace the monument with a new one at the record position.
  2. Reject the monument because it has moved and use the record bearing and distance instead.
  3. Accept the monument as controlling, but note the displacement and use the record to refine its original position. Correct answer.
  4. Use the monument only if it agrees with the record within 0.1 foot.

Explanation

Original government monuments are considered the best evidence of the corner location, even if slightly disturbed, because they are the physical evidence of the original survey. The surveyor should accept the monument as controlling but may use the record to refine its original position if the displacement can be determined. Rejecting or replacing the monument would disregard the original evidence.

Question 35Land Boundary Surveying and Legal Principles

Which of the following statements about the doctrine of prescription in Indiana is correct?

  1. Prescription requires the same elements as adverse possession.
  2. Prescription requires the payment of taxes.
  3. Prescription is a method of acquiring title to land by adverse use.
  4. Prescription is a method of acquiring an easement by adverse use. Correct answer.

Explanation

Prescription is a doctrine by which an easement can be acquired through adverse use for the statutory period. It differs from adverse possession, which concerns title to land. The elements are similar (open, notorious, adverse, continuous), but prescription applies to use rights, not possession of the fee.

Question 36Land Boundary Surveying and Legal Principles

A deed contains the following description: 'The West 50 feet of Lot 4, Block 2, in Smith's Addition to the City of Indianapolis, as recorded in Plat Book 5, Page 10.' Which type of legal description is this?

  1. Government rectangular survey
  2. Metes and bounds
  3. Lot and block Correct answer.
  4. Metes and bounds with a reference to a plat

Explanation

This description identifies a portion of a lot and block within a recorded subdivision plat. The primary reference is to the lot and block in the plat, with a qualifier of the west 50 feet. This is a lot-and-block description, which is common for subdivided property.

Question 37Land Boundary Surveying and Legal Principles

Two adjoining deeds each describe the same 10-foot strip of land, creating an overlap. The deeds were executed by the same grantor, but the first deed was recorded after the second deed. The grantees had no actual notice of each other's deeds. Under Indiana's recording statute, who has superior title to the strip?

  1. The grantee whose deed was recorded first, if they took without notice. Correct answer.
  2. The grantee who takes without notice and records first, provided they paid value.
  3. The first grantee to receive the deed, regardless of recording.
  4. The grantee whose deed was executed first, if they recorded within a reasonable time.

Explanation

Indiana is a race-notice state: a subsequent purchaser who takes without notice and records first prevails over a prior unrecorded interest. Here, the grantee whose deed was recorded first, if they had no notice of the other deed, would prevail. The key is recording first without notice.

Question 38Land Boundary Surveying and Legal Principles

A surveyor finds that a deed's bearing for a line is N 45° E, but the bearing derived from the found monuments is N 40° E. The distance is 100 feet. Which principle should guide the surveyor in resolving this discrepancy?

  1. The deed bearing controls because it is the written intent.
  2. The monument-derived bearing controls because monuments are the best evidence. Correct answer.
  3. The surveyor should split the difference and use N 42°30' E.
  4. The surveyor should use the deed bearing but note the discrepancy.

Explanation

In boundary retracement, monuments called for in the deed control over bearings and distances. If the monuments are original and undisturbed, the bearing derived from them is more reliable than the deed bearing. Therefore, the monument-derived bearing controls.

Question 39Land Boundary Surveying and Legal Principles

A boundary line was established by an unrecorded agreement between adjoining owners and marked by a fence that has been in place for 15 years. The fence does not match the deed line. What doctrine may confirm the boundary as marked by the fence?

  1. Doctrine of merger
  2. Doctrine of estoppel by deed
  3. Doctrine of adverse possession
  4. Doctrine of agreed boundaries Correct answer.

Explanation

The doctrine of agreed boundaries allows adjoining landowners to establish a boundary by agreement and subsequent possession, even if it differs from the deed line. The agreement must be followed by the marking of the boundary and possession consistent with it. After the statutory period, the boundary becomes binding.

Question 40Land Boundary Surveying and Legal Principles

A surveyor must compute the area of a parcel described by a metes-and-bounds traverse. Which method is most appropriate for this calculation?

  1. Planimeter measurement
  2. Coordinate method (shoelace formula) Correct answer.
  3. Trapezoidal rule
  4. Simpson's rule

Explanation

For a closed traverse with known coordinates, the coordinate method (shoelace formula) is the most accurate and straightforward way to compute area. It uses the coordinates of the vertices to calculate the area directly. The trapezoidal and Simpson's rules are for integrating functions, and a planimeter is a mechanical device that is less precise.

Question 41Geodesy, Coordinate Systems, and Control Surveys

In the Indiana State Plane Coordinate System, which map projection and zone structure does the state use for its East and West zones?

  1. Albers Equal Area projection with three zones
  2. Transverse Mercator projection with two zones
  3. Oblique Mercator projection with a single statewide zone
  4. Lambert Conformal Conic projection with two zones Correct answer.

Explanation

Indiana uses the Lambert Conformal Conic projection, dividing the state into an East and a West zone. Conic projections suit the east-west elongated shape of the state and keep scale distortion small. The statewide numbering is tied to the national State Plane system defined in NAD83.

Question 42Geodesy, Coordinate Systems, and Control Surveys

A surveyor measures a distance along the ground at an elevation of 300 m and needs to reduce it to the ellipsoid. Which quantity is required along with the mean radius of the Earth?

  1. The geoid undulation at the point
  2. The grid scale factor of the zone
  3. The ellipsoid height of the line Correct answer.
  4. The convergence angle of the meridian

Explanation

Reducing a ground distance to the ellipsoid uses the ratio R/(R+h), where h is the ellipsoid height above the reference ellipsoid. Geoid undulation alone does not give the ellipsoid height unless combined with the orthometric height. Grid scale factor applies later when converting ellipsoid distance to grid distance.

Question 43Geodesy, Coordinate Systems, and Control Surveys

Which reference frame is the current realization used for the National Spatial Reference System in the conterminous United States?

  1. ITRF2014
  2. NAVD88
  3. NAD27
  4. NAD83 (2011) Correct answer.

Explanation

NAD83 (2011) is the current horizontal datum realization for the National Spatial Reference System in CONUS. NAD27 is the superseded older datum, and NAVD88 is a vertical datum. ITRF2014 is an international terrestrial reference frame, not the NSRS horizontal realization.

Question 44Geodesy, Coordinate Systems, and Control Surveys

A surveyor observes a GNSS baseline using static relative positioning. Which processing technique best removes most ionospheric and tropospheric effects and resolves integer ambiguities?

  1. Absolute pseudorange smoothing
  2. Doppler-only velocity integration
  3. Single-point positioning with broadcast ephemeris
  4. Double-difference carrier-phase processing Correct answer.

Explanation

Double-difference carrier-phase processing cancels most atmospheric and satellite/receiver clock errors and enables integer ambiguity resolution. Single-point positioning with broadcast ephemeris gives meter-level accuracy and cannot resolve ambiguities. Pseudorange smoothing and Doppler integration do not provide the same precision.

Question 45Geodesy, Coordinate Systems, and Control Surveys

The angle between grid north and true north at a point on a State Plane grid is called which of the following?

  1. Magnetic declination
  2. Azimuth
  3. Deflection of the vertical
  4. Grid convergence Correct answer.

Explanation

Grid convergence is the angle between grid north and true (geodetic) north at a point, varying with position on the projection. Magnetic declination is the angle between magnetic and true north. Azimuth is a direction angle, and deflection of the vertical relates the ellipsoid normal to the gravity vertical.

Question 46Geodesy, Coordinate Systems, and Control Surveys

A geodetic azimuth from station A to station B is 45°00'00". The grid convergence at A is +1°30'00". What is the grid azimuth from A to B?

  1. 46°00'00"
  2. 43°30'00" Correct answer.
  3. 46°30'00"
  4. 45°00'00"

Explanation

Grid azimuth equals geodetic azimuth minus grid convergence. Here 45°00'00" minus 1°30'00" gives 43°30'00". The sign convention matters: adding convergence would give the wrong direction. Always confirm the sign convention defined for the projection.

Question 47Geodesy, Coordinate Systems, and Control Surveys

Which statement correctly describes the difference between an orthometric height and an ellipsoid height?

  1. Orthometric height is measured above the geoid; ellipsoid height is above the ellipsoid. Correct answer.
  2. Both are measured above mean sea level with no correction.
  3. Orthometric height is a purely geometric quantity independent of gravity.
  4. Orthometric height is measured above the ellipsoid; ellipsoid height is above the geoid.

Explanation

Orthometric height is the distance above the geoid along the plumb line, while ellipsoid height is the distance above the reference ellipsoid along the ellipsoid normal. The two differ by the geoid undulation. Orthometric height depends on the gravity field, whereas ellipsoid height is geometric.

Question 48Geodesy, Coordinate Systems, and Control Surveys

A level loop closes with a misclosure of 0.024 ft over a route of 1.2 miles. Which misclosure ratio is most nearly correct?

  1. 1:264,000 Correct answer.
  2. 1:26,400
  3. 1:50,000
  4. 1:5,280

Explanation

The ratio is computed as total distance divided by misclosure: 1.2 miles equals 6,336 ft, and 6,336 / 0.024 ≈ 264,000. Expressed as a ratio this is about 1:264,000. Ratios express relative precision and are compared against the project standard.

Question 49Geodesy, Coordinate Systems, and Control Surveys

Which geodetic coordinate triplet is commonly used in GNSS processing to express a position in the Earth-Centered, Earth-Fixed frame?

  1. X, Y, Z Cartesian coordinates Correct answer.
  2. Azimuth, distance, zenith angle
  3. Latitude, longitude, orthometric height
  4. Northing, easting, elevation

Explanation

Earth-Centered, Earth-Fixed coordinates are typically expressed as X, Y, Z Cartesian coordinates with the origin at the Earth's mass center. Latitude, longitude, and orthometric height involve a datum and geoid model. Northing/easting and azimuth/distance are local or grid-based expressions.

Question 50Geodesy, Coordinate Systems, and Control Surveys

A surveyor needs to transform coordinates between NAD27 and NAD83. Which tool is most appropriate for a large project area requiring consistent results?

  1. Rotating the coordinates by the grid convergence angle
  2. Scaling coordinates by the local grid scale factor
  3. Applying a single average shift in northing and easting
  4. Using the NGS NADCON transformation model Correct answer.

Explanation

NADCON is the National Geodetic Survey model that provides position-dependent shifts between NAD27 and NAD83. A single average shift ignores the spatial variation of the datum difference. Rotation and scaling address projection effects, not datum transformation.