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CM > Survey Test 2 > Flashcards

Survey Test 2 Flashcards

1
Q

In the calibration of a level that test(s) used are?

A

Line of sight (quick peg test or 2 peg test)

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2
Q

Angels less than 90 degrees are called

A

Acute

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3
Q

GPS can best be described as

A

Group of satellites used by receiver on earth for navigation and surveying

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4
Q

Topographic features found on a site plan would include which group from the following selections?

A

Trees, hills, streams

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5
Q

The sum of the interior angels of a polygon with six sides is

A

720

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6
Q

Lines drawn on a map to represent a line of constant elevation on the ground are called

A

Contours

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7
Q

Lift drawings are used by a field engineer in construction for

A

What to construct, what to embed and where to locate

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8
Q

Main purpose of a rotary laser is

A

Create horizontal plane for elevation determination

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9
Q

Vertical axis, horizontal axis, line of sight, axis of level tube, plate level axis are

A

Principle lines on a transit/ theodolite

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10
Q

GPS technique where by data for a reciever at a known position is used to correct the date from a receiver at an unknown position is called

A

DGPS (Differential global position system)

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11
Q

Basic principles for calibrating all instruments and tools should include all except which of the following

A

Perform check during heat of the day

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12
Q

Pipe lasers (sewer Lasers) provide which important features used by field engineers (normal application)

A

Grade and lines

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13
Q

The GPS method in our lab activity utilized base receivers which communicated corrections to rover units which collected point positions immediately on site. This type of GPS method is

A

Real time kinematics

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14
Q

The structure of an angle turning instrument has 3 sections which are

A

Alidade, horizontal cycle, leveling section

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15
Q

Total stations measure 3 basic variables

A

Vertical angles, slope distance , horizontal angles

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16
Q

The distance from the instrument to the rod should be the same for backsight and foresights when doing differential leveling

A

False

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17
Q

Elevations determined by the usage of a total station are derived from which leveling process in the following group?

A

Trig leveling

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18
Q

Closing a level loop means

A

Establishing an elevation on a benchmark from a TP

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19
Q

Surveying measurements involved each of the following variables which should be avoided. Which of the two are larger?

A

Mistakes

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20
Q

Data collectors enhance the operation of a total station but usage does have a few disadvantages. Which alternative from the following list poses a definite disadvantage?

A

Battery dependence

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21
Q

Total station measures 3 basic variables which are used to calculate other info. The greatest source of error in using a total station is a result of?

A

Prism Pole

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22
Q

Optical plummets replaced plumb bobs on current transits. Which principle line does this device line up exactly with on the transit?

A

Vertical Axis

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23
Q

Construction surveying requiring the turning of angles involves methods which deliver high accuracies. Which of the following should always be performed when turning angles?

A

Long Backsight

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24
Q

A steel chain with a nominal length longer than the actual length would be considered what type of error?

A

Instrumental

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25
Q

Cross section leveling is a method of differential leveling which is often used in the construction of the following?

A

Levees

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26
Q

Benchmark is best described as

A

Point used in the differential leveling process with a known elevation

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27
Q

When laying out a distance of 100’ with a chain having actual length of 100.01’, how is the measured distance corrected when measuring between the 2 points.

A

Subtracted

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28
Q

Which of the following normally provides most of the survey control info on a jobsite?

A

Wooden stakes

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29
Q

The following term 229d 22’ 23’’ is best described by which of the following?

A

Azimuth

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30
Q

Distances measured in areas of different elevations require an improvised methodology, which of the following techniques describes this field application?

A

Breaking Chain

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31
Q

Record keeping is an important part of surveying. Which of the following is considered to be a legal document?``

A

Engineers field book

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32
Q

When measuring a distance with a steel tape, which of the following 4 selections has a minimal or no effect?`

A

Flat ground

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33
Q

Which of the following is not a basic rule for measuring a distance with a steel tape?

A

Measure in 1 direction only

34
Q

When using an optical level, field engineers can focus both the cross hairs and image. Which of the following describes the situation of unfocused crosshairs?

A

Parallax

35
Q

When reading a rod for determining elevations, a rod man should do which of the following?

A

Rock the rod back and forth slightly

36
Q

Field angle used for the establishment of an accurate grid system, by measuring the direction and distance between a series of points called?

A

Traverse angels

37
Q

Deflection angles are best described by which statement?

A

Angles measured off of a prlongation of a preceding line

38
Q

Office duties performed by field engineers include all of the following except

A

Building design

39
Q

Mechanical part of an automatic level which creates a horizontal line of sight is?

A

Compensator

40
Q

Which field angle removes systematic errors from measured angles on job sites?

A

Direct and reverse

41
Q

Three measurable values which determine the position of one point to another?

A

Direction, Distance, elevation

42
Q

From the following list which one is used to measure distances?

A

Total Station

43
Q

How many degrees are found in an 11 sided polygon?

A

1620

44
Q

Field engineers and layout personnel are not qualified to perform which task from the following list?

A

Establish property lines and boundaries

45
Q

When marking line or grade on a job site, which of the following best describes the placement of these markings?

A

Plumb, level, straight

46
Q

Bucking the line in a leveling exercise is best described by which selection?

A

Using the same HI every day

47
Q

Primary Control Points are what color?

A

Orange

48
Q

Secondary Control Points are what color?

A

Yellow

49
Q

Working control points are what color?

A

Pink

50
Q

Describe lift drawings?

A

Info is lifted from numerous sources to create a single set

51
Q

How are contours used by engineers?

A

to determine the amount of cut or fill for a project site

52
Q

How could you “figure out” a triangle with no right angles?

A

Law of sines , law of cosines

53
Q

How many satelites orbit the earth?

A

24

54
Q

If GPS is American, then Glonass is ____ and Galileo is _____.

A

Russian, Europe

55
Q

In laying out a point with the total station, how can you describe the process?

A

Guess and check

56
Q

In using lasers, sites should not have above ____ degrees of signal obstruction.

A

20

57
Q

What are plainimetric drawings?

A

They are drawings with human-made features such as roads, sidewalks and utilities

58
Q

What are some applications of GPS?

A

Checking the plumpness of high rise buildings, collecting topgraphical data, excavation locations

59
Q

What are some errors in GPS?

A

Orbiting errors, poor geometry, mulit-paths singals, clock errors

60
Q

What are some horizontal applications of a laser?

A

Anchor bolts, establishing lines on a slab, pipelines

61
Q

What are some vertical applications of a laser?

A

Plumbing elevator shafts, columns, walls,

62
Q

What are the two types of lasers?

A

Visible light and electronic level

63
Q

What can a laser “replace”?

A

Plumb bob, stringline, and level

64
Q

What do lines in terms of plane geometry?

A

Connects two points

65
Q

What does a total station measure?

A

Slope distance, horzontal angels and vertical angels

66
Q

What is a point in terms of plane geomertry?

A

A position

67
Q

What is the contour interval?

A

The vertical distance between each contour line

68
Q

What is the purpose of lift drawings?

A

to accurately convey to the foreman what to construct, what to embed and where to locate

69
Q

What should you do to factor in the weather for a total station?

A

Factor in a PPM factor

70
Q

When calibrating angle measurements, how should you callibrate the horizontal axis?

A

Point to the tip of something high, bring it down, note, turn 180 and repeat

71
Q

When calibrating chains what is the tolerance?

A

.02 ft should be discarded, .01 ft is acceptable

72
Q

When calibrating instruments, they should not…

A

have parralax, be dirty or overtightened

73
Q

When calibrating levels, how should the two peg test be approached?

A

Mark two points 200-300 feet apart with the same height, get in center and shoot. The difference is the error

74
Q

When using a laser, what could be causing a false beam?

A

Refelctive surfaces

75
Q

What is the accuracy requirements of the total staion?

A

3 sec or less

76
Q

When using a total station,how much should the distance be limited too?

A

150-200 feet

77
Q

When using a total station, what should you look out for in reference to weather?

A

Curvature and refraction

78
Q

Which GPS systems should be used for construction?

A

Rapid Static GPS and Real Time Kinematics

79
Q

Which one is better for longer distances and which one is better for shorter distances?

A

Total for longer, chains for shorter

80
Q

Classes of lasers

A

Fixed, Rotated, Utility

CM (5 decks)

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