Distance Measurement & Traversing Flashcards
6 cards from real FUNDAMENTAL SURVEYING practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Distance Measurement & Traversing flashcards as text
What correction must be applied when a steel tape is used at a temperature different from its standardization temperature?
Answer: Temperature correction
Steel expands and contracts with temperature, so a temperature correction is applied using the coefficient of thermal expansion (0.0000065/F for steel).
What is the 'departure' of a survey line?
Answer: The east-west (x-axis) component of the line
Departure is the east-west projection of a survey line, calculated as distance times sin(bearing).
In the Compass (Bowditch) Rule for traverse adjustment, corrections are distributed proportional to:
Answer: The length of each course relative to total traverse length
The Compass Rule distributes closure errors proportionally to each course's length as a fraction of the total traverse perimeter.
A line has an azimuth of 225 degrees. What is its equivalent bearing?
Answer: S 45 W
225 degrees azimuth falls in the SW quadrant; bearing = 225 - 180 = 45, so the bearing is S 45 W.
What is the 'latitude' of a survey course?
Answer: The north-south (y-axis) projection of the course
Latitude is the north-south component of a survey line, calculated as distance times cos(bearing).
For a precision requirement of 1:5,000 on a 2,500-ft traverse, what is the maximum allowable linear closure?
Answer: 0.5 ft
Maximum closure = 2,500 divided by 5,000 = 0.5 ft.