What is the primary use of a theodolite in surveying?
A Measure elevation
B Measure angles
C Plot data
D Measure distances
A theodolite is used to measure both horizontal and vertical angles in surveying. It is crucial for determining accurate positions and ensuring proper alignment during construction and mapping projects.
Which instrument is used to measure horizontal and vertical angles?
A Theodolite
B Chain
C GPS
D Compass
Theodolites are precision instruments used to measure both horizontal and vertical angles in a survey, essential for applications such as triangulation and alignment in construction.
What is the function of an EDM (Electronic Distance Measurement) instrument?
A Measure volume
B Measure distance
C Plot data
D Measure angles
EDM instruments measure distances by sending electronic signals, typically lasers, and calculating the time taken for the signal to return. They provide high accuracy over long distances.
Which survey method is used to determine land ownership boundaries?
A Curve setting
B Topographic survey
C Cadastral survey
D Hydrographic survey
Cadastral surveys are used to establish and document land ownership boundaries, essential for land registration and resolving property disputes.
What is the purpose of contour lines in topographic surveys?
A Indicate elevation changes
B Measure distances
C Represent water bodies
D Show areas of high density
Contour lines represent points of equal elevation, allowing surveyors to visualize terrain features like hills, valleys, and slopes, aiding in construction and land planning.
What is the purpose of setting out in construction surveying?
A Measuring angles
B Mapping boundaries
C Establishing reference points
D Measuring volume
Setting out involves transferring design points and lines from plans to the ground to ensure structures are built in the correct locations. It is essential for foundations, roads, and other infrastructure.
What type of instrument is used to measure the horizontal distance in chain surveying?
A Clinometer
B Chain
C Total station
D GPS
Chain surveying uses a measuring chain to measure horizontal distances on the ground. It is typically used for small-scale surveys where high accuracy is not critical.
What does a plane table allow surveyors to do?
A Plot survey data directly in the field
B Calculate volume
C Measure distances
D Measure angles
A plane table survey allows surveyors to draw maps directly in the field, providing an effective method for real-time data collection and mapping, especially for small areas.
What is triangulation used for in surveying?
A Calculate areas
B Measure volume
C Measure elevation
D Determine location of points
Triangulation is used to determine the position of unknown points by measuring angles from known reference points, crucial in geodetic surveys and mapping large areas.
What is the function of a plumb bob in surveying?
A Measure distance
B Measure angles
C Establish vertical reference
D Measure angles
A plumb bob is used to establish a vertical reference line. It is typically used to check the alignment of surveying instruments or during leveling tasks to ensure vertical accuracy.
What is the purpose of a leveling instrument in surveying?
A Measure elevation
B Plot maps
C Measure angles
D Measure distances
Leveling instruments are used to determine the difference in elevation between two points, which is critical in construction and land development for accurate height measurements.
What is the primary use of a GPS in surveying?
A Measure height
B Measure angles
C Measure distances
D Provide accurate location data
GPS systems are used to provide precise geographic coordinates (latitude, longitude, and elevation) for points on Earth. It is essential for large-scale and geodetic surveying.
What is the purpose of using a chain in chain surveying?
A Level the ground
B Set boundaries
C Measure angles
D Measure distances
A chain is used in chain surveying to measure horizontal distances between points on the ground. It is an essential tool for basic surveying, particularly for small and simple surveys.
What does remote sensing in surveying help to do?
A Plot boundaries
B Collect data from a distance
C Measure distances
D Measure angles
Remote sensing allows surveyors to collect data about Earth’s surface from satellites or aerial devices. It is essential for large-scale surveys and environmental monitoring.
What is a typical application of a hydrographic survey?
A Mapping roads
B Measuring elevation
C Measuring underwater features
D Measuring land boundaries
Hydrographic surveys are used to measure underwater features such as water depth and seabed contours. These surveys are essential for navigation, marine construction, and flood management.