WorksheetsSurveyor of the week competition
Total questions: 10
Worksheet time: 10mins
What is the horizontal control ?
To establish levels
To locate positions
To check compaction of soil
To find the elevation of benchmarks
A benchmark is used to transfer levels from one point to another.
True
False
Which instrument is mainly used for vertical control?
Total Station
Auto Level
Measuring Tape
Theodolite
When setting out a right angle by the 3-4-5 method, the diagonal should be:
6.5 m
7 m
5 m
10 m
The following is an example of horizontal control
Using theodolite for measuring angles
Using auto level for TBM
Using total station for measuring angles
Performing a right angle
What does back sight mean ?
A measurement taken to a point of known elevation
A measurement taken to a point of elevation that we do not know
Angle measured from the instrument to the target
A type of surveying instrument.
In horizontal control, a small measurement error will not change the place of the building
True
False
Horizontal control fixes ________, while vertical control fixes ________.
Height / Length
Area / Volume
Position / Height
Grid / Line
Which of the following is NOT part of vertical control procedure?
Using backsight and foresight
Calculating reduced levels
Check of diagonals
Using a staff
The 3-4-5 method can be used to check both horizontal and vertical alignment.
True
False
