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

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.

A

Chain Pin

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?

A

60

20
Q

How many seconds are in a minute?

A

60

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
Q

Describe the difference between systematic errors and accidental error.

A

Accidental errors are usually small, random, and avoidable, while systematics errors are repetitive and constant(caused by errors in the surveying equipment).

26
Q

Define Discrepancy

A

Difference between two measured values of the same quantity

27
Q

Define Precision

A

Refers to the refinement or consistency of a group of measurements

28
Q

Define Accuracy

A

The absolute nearness of measured quantities to their true values.