Mid Term Retake

Given a Bearing from point 1 to 2 of N23-15-52E What is the Azimuth from 2-1?

203-15-52

What is the distance between Station 14+12.65 and a point that is 522.15' before Station 22+54.44?

319.64'

Compute the Standard Deveation for these 5 distances; (1.) 12.83m; (2.) 12.02m; (3.) 11.88m; (4.) 12.77m; (5.) 12.25m.

0.43m

A section of land is 19.83ch x 19.09ch x 19.31ch x 20.14ch. The area of the lot is most nearly

38.39ac

Given a Bearing from Point 2 to Point 1 of S21-14-45W Setting a Total Station on Point 2 Backsighting Point 1 and turning an angle right of 256-11-12 to Point 3 What is the bearing from Point 3 to Point 2?

N82-34-03W

How many acres are in a Township and Range in the Public Land Survey System?

not 640ac

How many states do not use Public Land Survey System?

14

A land owner asked you to tell them how much land a pipeline easement that is 15' wide and 214.4 rods have accuracy his land?

1.22 ac

Which are not considered surveying?

Anthropography

A professional surveyors legal responsibility are, what?

Interpret legal land description to determine land ownership

Location where the total station is set is referred as, what?

Vertex

ArcGIS can create new GIS feature Layers that are, what?

Points, Lines, and Polygons

Survey made after construction to finalize contracts or secure funding is called, what?

Asbuilt

If you measured a line using RTK GPS that has an accuracy of 0.02m +/- 2ppm that is 5278.22' and asked if it meets ALTA NSPS accuracy you would certify what?

The RTK-GPS accuracy is 0.12' and ALTA/NSPS allowable accuracy is 0.33', therefore it meets the required accuracy.

You have been asked to measure the finish floor elevation of a building near a flood plain 100-year flood. You could potentially provide an orthomethric elevation to NAVD88 to what accuracy?

not 0.33'

What are traverse measurements not used in adjustments?

Reverse Distance

What Global Map Projections are used to represent large areas?

UTM

What is the Map Projection of Texas?

Lambert Conformal

What is the distance between Point 1 with Lat:30-15-22 Lon:-96-52-10 Point2: with Lat:30-16-20 Lon:-96-51-20?

7327.84'

GPS measures elevation in reference to what datum?

Ellipsoid

Which of the following is a surfaces of equal potential best fitting the average sea model over the whole globe?

Geoid

You measure a distance 1875 times. How many of those measurements fall between +/- 2 Standard Deviations ( Also know as a 2-Sigma solution = 2

not 1280 or 1781

What is the agreement between measurements and the true value?

Accuracy

Lidar uses what math principal to compute coordinates everywhere the laser hits a target?

Polar and Rectangular

Which would most likely be longer Geodetic Distance; Grid Distance; or Ground Distance

Ground

What is the constant used in EDM measurements?

Speed of Light

What is most likely to be an error in a EDM measurement?

Atmosphere

What happens if you use a Topcon Total Station and a Leica Prism on a traverse?

All distances would have a systematic error

Why do we invert the scope of at Total Station?

To remove systematic error in collimation of Total Station

FIPS Code for Texas State Plane NAD83 North is

4201

Prime Meridian is a _____________ reference for longitude.

voted location

Before any civil engineering project an engineer must decide what?

Reference coordinate system Horizontally and Vertically to use for design.

A __________ are points marks and geodetic values in a database that represents ellipsoids and coordinate systems.

datum

Geoids are based on what vertical datum?

NAVD88

Changing coordinates from Latitude and Longitude to Northing and Easting is the process of what?

Conversion

Why was Clarke 1866 was selected for NAD27 ?

It was set close to North America so if you computed a great circle lat and long inverse it would be similar to a ground horizontal distance

Cartesian Coordinate is

XYZ

Given the Distance and Bearing, determine the Latitude and departure of A.

Lat=321.33 Dep=1040.25

Given the Distance and Bearing, determine the Latitude and Departure of D.

Lat= -942.36 Dep= 28.90

When looking online at the Texas Water Development Board website on drilled water wells the location seems to be 143.12' in the wrong location of where you can see the water well. This most likely because?

NAD27 was used versus NAD83

In surveying the kurtosis of a curve like means what?

Distribution of residuals are more closer to the correct answer

NAD83 Ellipsoid is

GRS80

Given a property with a Perimeter of 5905.65' with a closing Lat Error= -1.635 Dep Error=-1.304; What is the Error Ratio

1:2825

Given the following traverse, calculate the Internal Angle error correction you should add or subtract from each angle?

-02"

A Leica PS1100 Plus EDM Accuracy is 5mm+5ppm. You measure a 235.36'; 391.22'; 217.45' and 451.99'. What is the total cumulative EDM error?

c. ±0.036'

If B is N=1959.22' E=145.47', and and Point F is approximately 1181.4' S86⁰21'00"E from Point B. What is the coordinate of F?

N= 1884.01' E=1324.47'

If A is N= 500' E=500' and Point E is approximately 902.1' N43⁰43'12"E from Point A

N=1151.97' E=1123.47'

Given that the bearing of line BA is N 65º22' E and the bearing of line BC is S 70º20' E, what is the interior angle at B?

135° 42'

Given a set of angles D-00-00-00 D-124-15-45 R-179-59-44 R-304-15-26 What is the final angle would you use for the computation of the Latitude and Departure

124-15-43

If the azimuth of line AB is 138°13'14", What is the bearing of line AB?

S 41° 46'46" E

_______________ surveys involve locating objects (buildings, infrastructure, etc.) on the site and measuring the elevations of the site.

Topographic

NAD 27 Ellipsoid is

Clarke 1866

The Earth Equatorial Plane is at

0 degrees

What does GNSS stand for?

Global Navigation Satellite Systems