A leveling instrument is used to determine the elevation difference between two or more points. It helps ensure accurate height measurements for construction, drainage, and topographic surveys.
Which device is used to measure horizontal distances?
A Measuring tape
B GPS
C Compass
D Prism
A measuring tape is a simple tool used to measure horizontal distances, typically used in chain surveying. It’s ideal for small, less complex surveys.
What is the purpose of a theodolite?
A Measure distances
B Measure angles
C Measure elevations
D Measure vertical angles
A theodolite is used to measure both horizontal and vertical angles in surveying. It is essential for tasks like triangulation and setting out in construction.
Which instrument measures both distance and angles?
A Chain
B GPS
C Compass
D Total station
A total station is an advanced instrument that measures both angles and distances simultaneously. It is widely used in modern surveying tasks, ensuring high accuracy.
What does triangulation help determine?
A Survey boundaries
B Distances and positions
C Elevation
D Angles
Triangulation helps determine the exact positions and distances of points by measuring angles between known locations. It is a fundamental method in geodetic surveying.
What is a key feature of contour lines?
A Elevation markers
B Boundary lines
C Direction indicators
D Distance markers
Contour lines represent equal elevation points on a map. They are used to show the shape and slope of the terrain, helping in land planning and construction.
What type of survey is used to measure the depth of water bodies?
A Topographic survey
B Cadastral survey
C Hydrographic survey
D Alignment survey
Hydrographic surveys measure underwater features, such as water depth, seabed shape, and submerged objects. This information is crucial for navigation and marine construction.
What is the function of a prism in EDM surveys?
A Plot data
B Reflect signals
C Measure distance
D Measure angles
In EDM (Electronic Distance Measurement) surveys, a prism reflects the signal back to the instrument, allowing the distance to be accurately calculated.
Which survey method is used for boundary determination?
A GPS survey
B Plane table survey
C Cadastral survey
D Triangulation
A cadastral survey is used to determine land boundaries and ownership. It is crucial for land registration and resolving property disputes.
What type of map shows elevation changes?
A Topographic map
B Cadastral map
C Hydrographic map
D Geodetic map
A topographic map shows both natural and man-made features, including elevation changes, using contour lines to depict the landscape’s shape.
What instrument is used to measure horizontal and vertical angles in surveying?
A Total station
B GPS
C Compass
D Theodolite
A theodolite measures both horizontal and vertical angles, making it crucial for determining accurate positions and creating survey layouts.
What is the purpose of setting out in construction?
A Calculating volume
B Plotting the map
C Measuring distances
D Establishing location points
Setting out is the process of transferring design plans from drawings to the ground, marking precise locations for foundations, roads, and other structures.
What is the purpose of a leveling staff?
A Measure height differences
B Plot the survey
C Measure angles
D Measure distances
A leveling staff is used in conjunction with a leveling instrument to measure the elevation difference between two points, important for constructing roads, buildings, and drainage systems.
Which method is used to measure large areas in surveying?
A Plane table surveying
B Triangulation
C Chain surveying
D GPS surveying
Triangulation divides large areas into triangles, using measured angles and known distances to calculate positions and areas. This method is essential for large-scale surveys.
What is the primary function of remote sensing in surveying?
A Plotting data
B Measuring angles
C Collecting data from a distance
D Calculating distances
Remote sensing involves collecting data about the Earth’s surface from satellites or aircraft. It is particularly useful for large-scale environmental monitoring and geographic mapping.