A cadastral survey is used to determine and document property boundaries, essential for land ownership, legal disputes, and land registration. It ensures clarity and accuracy of land records.
What type of survey is used to measure underwater depths?
A Hydrographic survey
B Boundary survey
C Topographic survey
D Cadastral survey
Hydrographic surveys are used to measure the depth and shape of the seabed, as well as the location of submerged objects. This data is critical for navigation, construction, and environmental monitoring.
What does a GPS system primarily measure in surveying?
A Angle
B Distance
C Position
D Height
GPS systems provide accurate location data (latitude, longitude, and elevation) using satellite signals, essential for mapping, geodetic surveys, and construction projects.
What is the primary function of a compass in surveying?
A Measure angles
B Determine direction
C Measure distances
D Measure height
A compass is used in surveying to determine the direction of lines relative to magnetic north. It helps establish bearings and is often used in compass surveying.
What does a leveling staff measure?
A Height differences
B Directions
C Angles
D Distances
A leveling staff is a graduated rod used with a leveling instrument to determine the vertical height or elevation difference between two points. It is critical for accurate construction and grading.
What is the method used to calculate areas in irregular plots?
A Chain surveying
B Area calculation
C Triangulation
D Simpson’s rule
Simpson’s rule is a mathematical method used to calculate the area of irregular plots by dividing them into smaller, easily measurable shapes like trapezoids or triangles, offering high accuracy.
What is the purpose of contour lines in topographic maps?
A Measure distances
B Show land boundaries
C Represent elevation
D Indicate roads
Contour lines represent points of equal elevation on a map. They help visualize terrain features like slopes, hills, and valleys, which are useful for planning construction, landscaping, and drainage systems.
What does a total station combine?
A Chain and tape
B Theodolite and EDM
C GPS and compass
D Theodolite and GPS
A total station combines the functions of a theodolite (measuring angles) and an EDM (measuring distances), making it highly effective for surveying and construction layout.
What is the primary function of electronic surveying tools?
A Plot data
B Measure height
C Improve speed and accuracy
D Measure angles
Electronic surveying tools like total stations and GPS instruments enhance surveying accuracy and speed by automating data collection, reducing errors, and increasing efficiency.
What is the purpose of setting out in construction?
A Establish reference points
B Calculate volumes
C Measure distances
D Measure areas
Setting out is used to transfer design points and lines from drawings to the ground. It ensures that construction is aligned correctly with the project plans.
What does triangulation help determine?
A Slope of terrain
B Location of points
C Volume of earthwork
D Area of land
Triangulation is a method in surveying where the positions of points are determined by measuring angles between known points. It is vital for creating accurate maps and establishing control points.
What is a primary use of remote sensing in surveying?
A Measure angles
B Plot survey data
C Measure distances
D Collect data from a distance
Remote sensing involves collecting data about the Earth’s surface using satellite or aerial imagery. It is used for environmental monitoring, large-scale mapping, and land surveying.
What is the purpose of a theodolite in height measurement?
A Measure vertical angles
B Establish vertical alignment
C Measure distances
D Measure horizontal angles
A theodolite is used to measure both horizontal and vertical angles, which are essential for calculating the height of objects, determining slope, and aligning construction projects.
What does a plane table survey allow surveyors to do?
A Calculate volumes
B Measure angles
C Measure distances
D Plot data in the field
A plane table survey is used to directly plot survey data in the field, eliminating the need for subsequent office mapping. It is particularly effective for small-scale projects and quick mapping.
What method is used to measure large areas by dividing them into triangles?
A Leveling
B Triangulation
C Triangulation
D Chain 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 and geodetic work.