Practice Test Geeks(LSIT) Land Surveyor in Training Practice Test
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Surveying Principles and Practices Flashcards

7 cards from real LSIT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Surveying Principles and Practices flashcards as text

  1. In differential leveling, what is the formula for the elevation of a new point?

    Answer: Elevation = HI − Foresight

    The new elevation equals the Height of Instrument (HI) minus the foresight rod reading: Elev = HI − FS.

  2. What is the primary difference between a 'monument' and a 'marker' in boundary surveying?

    Answer: A monument is a physical object occupying the true position of a corner; a marker is placed near but not at the corner

    A monument occupies the exact corner position and controls the boundary, while a marker (or witness post) is placed nearby to help find the monument.

  3. Which type of error increases proportionally with the number of instrument setups in a level circuit?

    Answer: Collimation errors

    Collimation error (line of sight not horizontal) is systematic and accumulates with each setup, increasing proportionally with the number of setups if backsight and foresight distances are unequal.

  4. A traverse has a linear closure error of 0.12 ft over 1,200 ft total distance. What is the precision ratio?

    Answer: 1/10,000

    Precision = 1 / (total distance / closure error) = 1 / (1200 / 0.12) = 1/10,000.

  5. In GNSS surveying, what does PDOP (Position Dilution of Precision) measure?

    Answer: The combined geometric effect of satellite distribution on 3D position accuracy

    PDOP quantifies how satellite geometry affects 3D position error; a low PDOP (≤3) indicates good geometry and better positional accuracy.

  6. What is 'meandering' as used in the original Public Land Survey System (PLSS)?

    Answer: Traversing the banks of navigable bodies of water to delineate the ordinary high-water mark

    In the PLSS, meandering refers to running traverse lines along navigable waters to establish the ordinary high-water mark for patent purposes.

  7. Which curve element represents the distance along the arc from the PC to the PT?

    Answer: Length of Curve (L)

    The Length of Curve (L) is the arc distance from the Point of Curvature (PC) to the Point of Tangency (PT), calculated as L = (Δ/360°) × 2πR.

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