Podcast
Questions and Answers
What are two characteristics of field notes that ensure their integrity?
What are two characteristics of field notes that ensure their integrity?
What is the corrected bearing if your FS is 192 degrees and your BS is 10 degrees?
What is the corrected bearing if your FS is 192 degrees and your BS is 10 degrees?
What type of error would a mis-adjusted declination create?
What type of error would a mis-adjusted declination create?
Which map scale represents a larger scale: 1:5,000 or 1:500,000?
Which map scale represents a larger scale: 1:5,000 or 1:500,000?
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What do contours never do?
What do contours never do?
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How should you denote a forest stand that is dominantly Douglas-fir and less than 20% western red-cedar?
How should you denote a forest stand that is dominantly Douglas-fir and less than 20% western red-cedar?
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What does an isogonic line represent?
What does an isogonic line represent?
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What is one of the five principles of good field notes?
What is one of the five principles of good field notes?
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Study Notes
Field Notes Integrity
- Field notes must be recorded directly in the field.
- Notes are original; no copies or erasures.
Corrected Bearing Calculation
- Calculate the corrected bearing by adding half the difference between the forward and backsight bearings to the forward sight bearing.
- Example: If FS is 192° and BS is 10°, the corrected bearing is 191°.
Good Tie Points
- Road junctions
- GPS-positioned features (Control Points)
- Easily identifiable features from photographs.
Map Scale Comparison
- 1:5,000 is a larger scale than 1:500,000.
Systematic Error
- Mis-adjusted declination causes a systematic error.
Magnetic North Movement
- Reset declination annually due to magnetic north's movement.
Field Distance Calculation
- If the map distance between points A and B is 5.0cm on a 1:1,500 scale map, the field distance is 75.0m.
Azimuth Conversion
- Convert N 25° W to azimuth: 335°.
Compass Bezel Lines
- Orienting lines are the parallel lines on the compass bezel.
Contour Characteristics
- Contours never cross or split. They never end.
Forest Cover Notation
- Forest cover notation for a stand dominantly Douglas-fir with less than 20% western red-cedar is F(C).
Point of Control (POC) Elevation
- Given POC elevation with slope, calculate the elevation at the POC: 133.2m.
Elevation Error Calculation
- Calculate elevation error: 4.2m.
Safety Meeting Topics
- Hazards
- First aid
- Emergency response
- Check-in procedures
Bird's Eye View Equivalent
- Plan view.
Surveying Definition
- Surveying is the art, science, and technology by which lines, distances, angles, and elevations are established and measured on or beneath the Earth's surface.
Isogonic Line
- Represents Earth's magnetic field lines.
Good Field Note Principles
- Legibility
- Integrity
- Accuracy
- Arrangement
- Clarity
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Description
Test your knowledge on essential field surveying techniques, including field note integrity, corrected bearing calculations, and map scale comparisons. This quiz also covers systematic errors and azimuth conversions relevant to field surveys.
