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Surveying Basics


Quiz Questions

1.A basic field survey establishes the horizontal and/or vertical location of a series of points in relation to a starting point called a _____________.
Landmark
Benchmark
Greymark
None of the above
2. Which of the following is recommended methods for establishing a benchmark?
Boulder monument
Spike monument
Cement monument
All of the above
3.The __________ profile survey is important for measuring the slope of the water surface, channel bed, flood plain and terraces.
Latitudal
Longitudinal
Perpetual
Ellipsoidal
4.The following figure shows how to ________________?
Surveying Basics 1
Center the base plate
Centering the bubble
Clean the leveling screws
All of the above
5.__________ is a rod reading taken on a point of know elevation. It is the actual vertical distance from the point of known elevation to a horizontal line projected by the instrument.
Fore sight
Rod sight
Back sight
None of the above
6.The points for which elevations are known or determined are called
Benchmarks
Turning Points
Both
None of the above
7. Equation to estimate the error at the closure of survey is
Surveying Basics 2
Surveying Basics 3
Surveying Basics 4
None of the above
8.The process of differential levelling with many intermediate foresights between turning points is called profile levelling
False
True
9. While measuring the channel cross-section, least number of measurements recommended to accurately portray most channel are
2
20
200
2000
10.Features to look for when locating the permanent cross-section are
A straight reach between two meander bends
Active floodplain or bankfull discharge
Presence of terraces
All the above