NCEES FUNDAMENTALS OF SURVEYING EXAM 2026/2027 |
COMPLETE QUESTIONS AND ANSWERS (VERIFIED ANSWERS) |
EXAM PREP PRACTICE QUESTIONS AND ANSWERS | LATEST
EXAM GUIDE 2026&2027
1. A surveyor measures a baseline several times and obtains values that differ slightly even
though the equipment and procedure remain unchanged. Which type of error is most
appropriately characterized by this variation?
A. Systematic error
B. Random error
C. Blunder
D. Datum error
Answer: B
Random error produces unpredictable variations among repeated observations. Repetition
and statistical adjustment can reduce its effect, whereas a blunder is normally caused by a
mistake and a systematic error follows a predictable pattern.
2. A total station is centered over a control point, but the instrument is not precisely leveled
before angle observations are taken. What is the most direct consequence?
A. The horizontal angles may be biased by instrument-axis misalignment
B. The prism constant automatically changes
C. The EDM wavelength becomes incorrect
D. The coordinate datum changes
Answer: A
Proper leveling establishes the instrument's vertical axis in the intended orientation. Failure
to level can introduce angular errors because the instrument axes are no longer correctly
related to the horizontal and vertical reference directions.
3. Two known control points have coordinates A(1,250.000, 840.000) and B(1,730.000,
1,200.000). What is the approximate horizontal distance AB?
A. 520.77
B. 600.00
C. 410.73
D. 1,200.00
Answer: A
,The coordinate differences are 480.000 and 360.000. Applying the distance formula gives
√(480² + 360²) = 600.000. Therefore, the correct result is actually B, 600.00.
4. A survey crew occupies point P and observes a backsight bearing of N 35° E. The
instrument is then oriented so that the backsight has an azimuth of 215°. What azimuth
should be assigned to a foresight observed with a horizontal angle of 72° clockwise from the
backsight?
A. 143°
B. 287°
C. 73°
D. 215°
Answer: B
The backsight line from P is oriented at 215° under the stated instrument orientation. Adding
the clockwise angle gives 215° + 72° = 287°.
5. A surveyor needs to determine the elevation difference between two points separated by
a roadway. Which procedure is generally most appropriate when high vertical accuracy is
required?
A. Differential leveling
B. Stadia measurement only
C. Magnetic compass traverse
D. Plane-table resection
Answer: A
Differential leveling is specifically designed to determine elevation differences accurately
through backsight and foresight observations. It is generally preferred when precise vertical
control is required.
6. During differential leveling, the backsight reading is 1.845 m and the foresight reading is
2.115 m. What is the elevation change from the backsight point to the foresight point?
A. +3.960 m
B. +0.270 m
C. −0.270 m
D. −3.960 m
Answer: C
The elevation change is BS − FS = 1.845 − 2.115 = −0.270 m. The foresight point is therefore
0.270 m lower than the backsight point.
,7. A benchmark has a published elevation of 842.360 m. A backsight of 1.275 m is observed
from a level setup. What is the height of instrument?
A. 841.085 m
B. 842.360 m
C. 843.635 m
D. 844.910 m
Answer: C
Height of instrument equals known elevation plus backsight: 842.360 + 1.275 = 843.635 m.
8. A level loop begins and ends on the same benchmark. The computed closing elevation
differs from the known elevation by 0.018 m. What should the surveyor do first?
A. Ignore the difference because it is small
B. Delete the final foresight
C. Change the benchmark elevation
D. Check observations and arithmetic before applying an adjustment
Answer: D
A closing discrepancy should first be investigated for mistakes in observations, recording,
calculations, or procedures. Only after the data are verified should an appropriate adjustment
be applied.
9. A 30 m tape is standardized at 20°C, but field measurements are made at 35°C. If the
tape is made of ordinary steel, what correction is generally required?
A. Temperature correction
B. Atmospheric refraction correction
C. Curvature correction only
D. Magnetic declination correction
Answer: A
Steel expands as temperature increases. A tape calibrated at one temperature therefore
requires a temperature correction when used at a substantially different temperature.
10. A surveyor records a horizontal distance of 500.000 m using a tape known to be 30.005
m when its nominal length is 30.000 m. Ignoring other corrections, what is the corrected
distance?
A. 499.917 m
B. 500.083 m
, C. 500.005 m
D. 499.995 m
Answer: B
The tape is 5 mm too long per 30 m, so measured distances must be increased. The corrected
distance is 500.000 × (30.005/30.000) ≈ 500.083 m.
11. A surveyor is checking whether a tape measurement should receive a slope correction.
The measured line has a horizontal distance of 120.000 m and a slope distance of 120.240
m. Which statement is correct?
A. The horizontal distance is larger than the slope distance
B. The slope distance is the quantity that should be reported as horizontal distance without
correction
C. The slope distance must be reduced to obtain the horizontal distance
D. No relationship exists between slope and horizontal distance
Answer: C
Slope distance is always equal to or greater than horizontal distance. The horizontal
component must therefore be derived by applying the appropriate slope correction or
trigonometric relationship.
12. Which instrument is primarily designed to measure both horizontal and vertical angles
electronically and determine distances using EDM?
A. Automatic level
B. Total station
C. Planimeter
D. Optical square
Answer: B
A total station combines electronic angle measurement with electronic distance measurement
and commonly includes onboard computational capability.
13. A total station reports a prism distance of 1,250.000 m. The instrument-to-prism line
has a vertical angle of 6° above horizontal. Which quantity is required to compute the
horizontal distance?
A. Sine of the vertical angle
B. Tangent of the horizontal angle
C. Cosine of the vertical angle
D. Cotangent of the zenith angle only
COMPLETE QUESTIONS AND ANSWERS (VERIFIED ANSWERS) |
EXAM PREP PRACTICE QUESTIONS AND ANSWERS | LATEST
EXAM GUIDE 2026&2027
1. A surveyor measures a baseline several times and obtains values that differ slightly even
though the equipment and procedure remain unchanged. Which type of error is most
appropriately characterized by this variation?
A. Systematic error
B. Random error
C. Blunder
D. Datum error
Answer: B
Random error produces unpredictable variations among repeated observations. Repetition
and statistical adjustment can reduce its effect, whereas a blunder is normally caused by a
mistake and a systematic error follows a predictable pattern.
2. A total station is centered over a control point, but the instrument is not precisely leveled
before angle observations are taken. What is the most direct consequence?
A. The horizontal angles may be biased by instrument-axis misalignment
B. The prism constant automatically changes
C. The EDM wavelength becomes incorrect
D. The coordinate datum changes
Answer: A
Proper leveling establishes the instrument's vertical axis in the intended orientation. Failure
to level can introduce angular errors because the instrument axes are no longer correctly
related to the horizontal and vertical reference directions.
3. Two known control points have coordinates A(1,250.000, 840.000) and B(1,730.000,
1,200.000). What is the approximate horizontal distance AB?
A. 520.77
B. 600.00
C. 410.73
D. 1,200.00
Answer: A
,The coordinate differences are 480.000 and 360.000. Applying the distance formula gives
√(480² + 360²) = 600.000. Therefore, the correct result is actually B, 600.00.
4. A survey crew occupies point P and observes a backsight bearing of N 35° E. The
instrument is then oriented so that the backsight has an azimuth of 215°. What azimuth
should be assigned to a foresight observed with a horizontal angle of 72° clockwise from the
backsight?
A. 143°
B. 287°
C. 73°
D. 215°
Answer: B
The backsight line from P is oriented at 215° under the stated instrument orientation. Adding
the clockwise angle gives 215° + 72° = 287°.
5. A surveyor needs to determine the elevation difference between two points separated by
a roadway. Which procedure is generally most appropriate when high vertical accuracy is
required?
A. Differential leveling
B. Stadia measurement only
C. Magnetic compass traverse
D. Plane-table resection
Answer: A
Differential leveling is specifically designed to determine elevation differences accurately
through backsight and foresight observations. It is generally preferred when precise vertical
control is required.
6. During differential leveling, the backsight reading is 1.845 m and the foresight reading is
2.115 m. What is the elevation change from the backsight point to the foresight point?
A. +3.960 m
B. +0.270 m
C. −0.270 m
D. −3.960 m
Answer: C
The elevation change is BS − FS = 1.845 − 2.115 = −0.270 m. The foresight point is therefore
0.270 m lower than the backsight point.
,7. A benchmark has a published elevation of 842.360 m. A backsight of 1.275 m is observed
from a level setup. What is the height of instrument?
A. 841.085 m
B. 842.360 m
C. 843.635 m
D. 844.910 m
Answer: C
Height of instrument equals known elevation plus backsight: 842.360 + 1.275 = 843.635 m.
8. A level loop begins and ends on the same benchmark. The computed closing elevation
differs from the known elevation by 0.018 m. What should the surveyor do first?
A. Ignore the difference because it is small
B. Delete the final foresight
C. Change the benchmark elevation
D. Check observations and arithmetic before applying an adjustment
Answer: D
A closing discrepancy should first be investigated for mistakes in observations, recording,
calculations, or procedures. Only after the data are verified should an appropriate adjustment
be applied.
9. A 30 m tape is standardized at 20°C, but field measurements are made at 35°C. If the
tape is made of ordinary steel, what correction is generally required?
A. Temperature correction
B. Atmospheric refraction correction
C. Curvature correction only
D. Magnetic declination correction
Answer: A
Steel expands as temperature increases. A tape calibrated at one temperature therefore
requires a temperature correction when used at a substantially different temperature.
10. A surveyor records a horizontal distance of 500.000 m using a tape known to be 30.005
m when its nominal length is 30.000 m. Ignoring other corrections, what is the corrected
distance?
A. 499.917 m
B. 500.083 m
, C. 500.005 m
D. 499.995 m
Answer: B
The tape is 5 mm too long per 30 m, so measured distances must be increased. The corrected
distance is 500.000 × (30.005/30.000) ≈ 500.083 m.
11. A surveyor is checking whether a tape measurement should receive a slope correction.
The measured line has a horizontal distance of 120.000 m and a slope distance of 120.240
m. Which statement is correct?
A. The horizontal distance is larger than the slope distance
B. The slope distance is the quantity that should be reported as horizontal distance without
correction
C. The slope distance must be reduced to obtain the horizontal distance
D. No relationship exists between slope and horizontal distance
Answer: C
Slope distance is always equal to or greater than horizontal distance. The horizontal
component must therefore be derived by applying the appropriate slope correction or
trigonometric relationship.
12. Which instrument is primarily designed to measure both horizontal and vertical angles
electronically and determine distances using EDM?
A. Automatic level
B. Total station
C. Planimeter
D. Optical square
Answer: B
A total station combines electronic angle measurement with electronic distance measurement
and commonly includes onboard computational capability.
13. A total station reports a prism distance of 1,250.000 m. The instrument-to-prism line
has a vertical angle of 6° above horizontal. Which quantity is required to compute the
horizontal distance?
A. Sine of the vertical angle
B. Tangent of the horizontal angle
C. Cosine of the vertical angle
D. Cotangent of the zenith angle only
