Surveying Flashcards

(51 cards)

1
Q

What is a survey in which the mean surface of earth is regarded as plane and not curved as it is really is?

A

Plane Surveying

Plane Surveying does not account for the curvature of the Earth.

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2
Q

What is the technique, profession, art, and science of determining the terrestrial position of points and the distances and angles between them?

A

Surveying

Surveying involves both two-dimensional and three-dimensional measurements.

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3
Q

What type of survey considers the shape of the Earth’s surface and exercises a higher degree of precision?

A

Geodetic Surveying

Geodetic Surveying accounts for the Earth’s curvature.

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4
Q

What are surveys usually undertaken for the purpose of determining and defining property lines and boundaries?

A

Cadastral Surveys

Cadastral Surveys are important for legal property descriptions.

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5
Q

What term refers to surveying streams, lakes, reservoirs, harbors, oceans, and other bodies of water?

A

Hydrographic Surveys

Hydrographic Surveys are vital for navigation and environmental management.

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6
Q

What is another name for optical tooling in surveying?

A

Industrial Surveys

Industrial Surveys apply surveying techniques in construction and assembly.

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7
Q

What type of surveys make use of photographs taken with specially designed cameras?

A

Photogrammetric Surveys

These surveys can be conducted from airplanes or ground stations.

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8
Q

What type of surveys involves alignment, grades, and earthwork quantities in connection with the planning, design, and construction of highways?

A

Route Surveys

Route Surveys are essential for infrastructure development.

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9
Q

What is the process made for determining the shape of the ground and the location and elevation of features?

A

Topographic Surveys

Topographic Surveys provide critical data for land use planning.

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10
Q

What is defined as the difference between the true value and the measured value of a quantity?

A

Error

Errors can significantly affect survey accuracy.

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11
Q

What are inaccuracies in measurements due to carelessness or poor execution called?

A

Mistakes

Blunders are considered large mistakes in surveying.

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12
Q

What consists of counting the number of steps or paces in a required distance?

A

Pacing

Pacing is a basic method of distance measurement.

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13
Q

What is defined as the length of a step in walking?

A

Pace

A pace may be measured from heel to heel or toe to toe.

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14
Q

What consists of 2 paces or a double step?

A

Stride

Stride is often used in estimating distances.

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15
Q

What branch of surveying measures distances with a chain and tape?

A

Chain Surveying

Chain Surveying is one of the oldest surveying methods.

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16
Q

What is any process where elevations of points or differences in elevation are determined?

A

Levelling

Levelling is crucial for construction and land surveying.

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17
Q

What method determines the area of a triangular lot using a transit setup at a point inside the lot?

A

Triangle Method

This method involves recording bearings and distances.

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18
Q

What is a line that follows the local direction of gravity as indicated by a plumb line?

A

Vertical Line

Vertical Lines are fundamental in establishing true verticality.

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19
Q

What is a curved surface that is perpendicular to the local plumb line at every point?

A

Level Surface

Level Surfaces are used in various surveying applications.

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20
Q

What is a plane perpendicular to the local direction of gravity?

A

Horizontal Plane

Horizontal Planes are essential for establishing level measurements.

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21
Q

What is the distance measured along a vertical line from a vertical datum to a point or object?

A

Elevation

Elevation is crucial for understanding topography.

22
Q

What is an imaginary surface of the sea that is midway between high and low tides?

A

Mean Sea Level

Mean Sea Level is used as a reference point in surveying.

23
Q

What is a fixed point of reference whose elevation is either known or assumed?

A

Bench Mark

Bench Marks are key in leveling operations.

24
Q

What is a reading taken on a rod held on a point of known or assumed elevation?

A

Back Sight

Back Sights are used to establish reference elevations.

25
A reading taken on a rod held on a point whose elevation is to be determined is called?
Fore Sight ## Footnote Fore Sights are crucial in leveling procedures.
26
What is an intervening point between two bench marks for leveling operations?
Turning Point ## Footnote Turning Points facilitate continuous leveling.
27
What is a leveling method used to determine differences in elevation between two points?
Differential Leveling ## Footnote Differential Leveling is a standard method in surveying.
28
What leveling method accurately determines elevation differences using reciprocal observations? hint: used for obstructions like river
Reciprocal Leveling ## Footnote This method is useful when obstructions prevent direct measurement.
29
What is the acute horizontal angle between the reference meridian and the line?
Bearings ## Footnote Bearings are essential for navigation and mapping.
30
When the bearing of a line is observed in the direction of survey progression, it is referred to as a?
Forward Bearing ## Footnote Forward Bearings aid in establishing direction.
31
When the bearing of the same line is observed in the opposite direction, it is called?
Back Bearing ## Footnote Back Bearings are used for verification of measurements.
32
What direction is given by the angle between the meridian and the line measured clockwise?
Azimuths ## Footnote Azimuths are important in navigation and surveying.
33
What is a series of connected lines whose lengths and directions are to be measured?
Traverse ## Footnote Traverses are fundamental in land surveying.
34
What is the projection of any line on a north and south line?
Latitude ## Footnote Latitude is essential for geographic positioning.
35
What is the projection of any line on east and west lines?
Departure ## Footnote Departure aids in calculating distances in surveying.
36
What are usually employed in lines of communication to ensure gradual direction changes?
Curves ## Footnote Curves are used for smooth transitions in surveying.
37
What consists of a single arc connecting two straight lines?
Simple Curves ## Footnote Simple Curves are common in road design.
38
What consists of two arcs of different radii bending in the same direction?
Compound Curves ## Footnote Compound Curves allow for more complex alignments.
39
What consists of two arcs bending in opposite directions with a common tangent?
Reverse Curves ## Footnote Reverse Curves are used in road and railway design.
40
What is a survey made to secure data for a topographic map?
Topographic Surveying ## Footnote Topographic Surveys provide detailed elevation data.
41
What is an imaginary line of constant elevation on the ground surface?
Contour ## Footnote Contours represent elevation changes on maps.
42
What is a line on the map joining points of the same elevation?
Contour Line ## Footnote Contour Lines depict the terrain's shape.
43
What do successive contour lines on a map that represents elevations and differs by a fixed vertical distance called?
Contour Interval ## Footnote Contour Intervals indicate the elevation difference between lines.
44
What are artificial shade lines drawn in the direct steepest slope to represent relief?
Hachures ## Footnote Hachures enhance the visual representation of slopes.
45
What is a dip at the junction of two ridges called?
Saddle ## Footnote Saddles are important features in topography.
46
What are the lines where the two sides of a valley meet?
Thalwegs ## Footnote Thalwegs indicate the lowest points in valleys.
47
What is the construction of large open cuttings or excavations involving cutting and filling of material other than rock?
Earthworks ## Footnote Earthworks are essential in construction and civil engineering.
48
What is the process of loosening and removing earth or rock from its original position in a cut and transporting it to a fill or to a waste deposit?
Excavation ## Footnote Excavation is a critical step in site preparation.
49
What describes the fill added above low points along a roadway?
Embankment ## Footnote Embankments raise the roadway level for stability.
50
What is the process of removing soil where proposed contours extend across existing contours uphill?
Cut ## Footnote Cuts are important for grading and leveling.
51
What is the process of adding soil where proposed contours extend downhill?
Fill ## Footnote Fills are used to raise ground levels in construction.