Surveying 1 Test #1 (9/23/21) Flashcards

(28 cards)

1
Q

Provides line, lean, control elevation, horizontal position, dimensions, and configurations for construction operations.

A

Construction Survey

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2
Q

Are made to plan, design, and construct highways, railroads, pipelines, or other linear projects.

A

Route Survey

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3
Q

Defines shorelines and depths of lakes, streams, oceans, reservoirs, or other bodies of water.

A

Hydrographic Survey

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4
Q

Has been as the science, art, and technology of determining relative positions of points above, on, or beneath the earth’s surface or establishing such points.

A

Surveying

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5
Q

The point about which a line rotates to form an angle.

A

Vertex

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6
Q

Established a network of horizontal and vertical monuments used as a reference framework for other surveys.

A

Control Survey

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7
Q

What are permanent reference points that are marked to be used in the future?

A

Monuments

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8
Q

The last foot of this tape is marked in tenths and inches and requires mental subtraction.

A

Cut Tape

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9
Q

The amount of two dimensional space encompassed within the boundary of a closed figure or shape.

A

Area

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10
Q

Consists of a magnetized steel needle mounted on a pivot at the center of a graduated circle.

A

Compass

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11
Q

Defined as a system of hardware, software, and data in organizational structure for collecting, storing, manipulating, and spatially analyzing geo-reference data.

A

GIS

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12
Q

Surveying the curved surface of the Earth. They are employed to determine the relative positions of widely spaced monuments. Based on sphere.

A

Geodetic Surveying

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13
Q

The reference base for field work and computations is assumed to be a flat, horizontal surface.

A

Plane Surveying

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14
Q

One end of the axis on which the Earth turns.

A

True North

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15
Q

The line of zero declination.

A

Agonic Line

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16
Q

Is used to mark the end of a tape or an intermediate point.

17
Q

What are three results of today’s surveying?

A
  1. Roads
  2. Property Lines
  3. Buildings
    (Literally anything)
18
Q

List two federal surveying agencies.

A
  1. BLM (Bureau of Land Management)

2. USGS (United States Geological Survey)

19
Q

How many minutes are in a degree?

20
Q

How many seconds are in a minute?

21
Q

When considering errors in measurement you can unconditionally state what four facts about measurement error. (List 2)

A
  1. No measurement is exact.

2. The true value is never known.

22
Q

Define Natural Error

A

Caused by variation in wind, temperature, humidity, atmospheric pressure, refraction, gravity, and magnetic declination.

23
Q

Define Instrumental Error

A

Result from imperfections in equipment.

24
Q

Define Blunder

A

A significant mistake due to human error.

25
Describe the difference between systematic errors and accidental error.
Accidental errors are usually small, random, and avoidable, while systematics errors are repetitive and constant(caused by errors in the surveying equipment).
26
Define Discrepancy
Difference between two measured values of the same quantity
27
Define Precision
Refers to the refinement or consistency of a group of measurements
28
Define Accuracy
The absolute nearness of measured quantities to their true values.