Question 1

Which of the following statements is not true?
A)Field notes contain a complete record of all measurements made during a survey.
B)Field notebooks are legal documents.
C)Field notebooks used for boundary surveys are destroyed at the conclusion of a construction project.
D)None of the above

Accepted Answer

Field notebooks are not destroyed at the conclusion of a survey project. In fact, because boundary survey field notebooks are considered legal documents and are often referred to in property litigation, they must be indexed and properly preserved. Field notebooks that contain survey information collected over a long period may represent work valued at thousands of dollars, making the notebooks extremely expensive to replace.

Question 2

Which of the following type of field note is not generally recorded in a field notebook?
A)Driving directions to the survey site
B)Tabulations of numerical measurements
C)Clarifying sketches
D)Descriptions clarifying measurements and survey monument locations

Accepted Answer

Field notebooks typically do not include driving directions to a survey site.
Tabulations of measurements are recorded in field notebooks according to the type of instrument used, the order of accuracy of the survey, and the type of measurements taken. Sketches are made in notebooks to clarify field notes. Descriptions can be used to supplement tabulations and sketches.

Question 3

What is the number 74.432126 when shown in four significant figures?
A)0.4321
B)74.43
C)74.432
D)74.4321

Accepted Answer

The number 74.432126 appears as 74.43 when shown in four significant figures. The number of significant figures in any value consists of the known digits plus one estimated digit.
Significant figures should not be confused with the number of decimal places.

Question 4

Which method of horizontal distance measurement requires no equipment?
A)Stadia
B)Taping
C)Pacing
D)None of the above

Accepted Answer

Pacing to measure horizontal distances requires no equipment. Pacing consists of first determining the length of a person's pace and then counting the number of paces in a distance walked. Experienced pacers can measure distances of 100 ft to a high degree of precision, making this method a valuable tool for detecting blunders that may have occurred when utilizing other surveying methods.

Question 5

Which of the following is not considered an error type associated with Global Positioning System (GPS) measurements?
A)Atmospheric
B)Seasonal
C)Satellite
D)Receiver

Accepted Answer

Seasonal errors are not considered an error type associated with GPS measurements. Disturbances and variations in the atmosphere may result in inaccurate GPS measurements. Although the GPS was designed with redundancy to ensure highly accurate precision, individual satellites can fail and be taken out of service. Receiver-dependent errors are predominately spatially related and can be considered canceled out when two or more receivers at adjacent locations experience similar errors.

Question 6

Which of the following statements regarding the Standards for Positional Accuracy of Global Positioning System (GPS) data is correct?
A)GPS surveys use different accuracy standards than traditional network and traverse surveys.
B)The U.S. government changed its methodology for reporting the accuracy of horizontal and vertical coordinate values because it was difficult to compare the accuracy of GPS and traditional surveys.
C)It is impossible to determine the accuracy of GPS data because of system complexity.
D)Only answers A and B

Accepted Answer

GPS surveys use different accuracy standards than traditional network and traverse surveys, and because of this, the U.S. government had to change the way the accuracy of GPS horizontal and coordinate values is reported.
GPS surveys are less distance dependent than traditional surveys. As such, it was difficult to compare the accuracy of coordinate values obtained by different survey methods. The A least squares adjustment method is used to determine GPS accuracy because it distributes the error following laws of random probability and minimizes the sum of squared residuals. The method allows for the testing of complex networks.

Question 7

For which site condition would it be appropriate to combine conventional optical surveying methods with GPS land surveying methods?
A)A heavily developed corridor has tall buildings.
B)Steep trails and heavy brush make it difficult for crew to access the area.
C)A portion of the project area is submerged.
D)All of the above

Accepted Answer

It would be appropriate to combine conventional optical surveying methods with GPS land surveying methods for all of the site conditions listed. Leveraging the efficiency and low-costs associated with GPS technology on projects where conditions prevent or complicate the use of conventional surveying methods is appropriate and smart.

Question 8

What steps can you take to ensure you, as a surveying professional, are providing high quality survey data?
A)Make sure you have a clear understanding of the required work, standards, and schedule.
B)Make sure your crews are well trained and are supplied with the proper equipment.
C)Provide the proper documentation that adheres to established standards.
D)All of the above

Accepted Answer

By taking all the steps listed above, you can ensure you are providing high quality survey data.

Question 9

GPS data integrated into geographic information systems (GIS) provide three-dimensional location information that can be used for which of the following:
A)Hydrologic/hydraulic modeling for floodplain delineations
B)Migration modeling for predicting bird strikes at wind farms
C)Sewer system evaluation studies and inflow/infiltration analyses
D)All of the above

Accepted Answer

GPS data integrated with GIS provides 3-D location information that can be used for a wide variety of projects, including all of the applications listed above. Today's surveying professionals supply engineers, scientists, and planners with valuable spatial location information that can be used to save lives, property, and natural resources.

Question 10

Which of the following is not a component of a telescopic sight common to levels and transits?
A)Objective lens
B)Offensive lens
C)Focusing lens
D)Reticle

Accepted Answer

An offensive lens is not a telescopic sight component.
The objective lens is located at the forward end of the sight and forms an image within the telescope. The focusing lens is moved back and forth to focus on the cross hairs provided by the reticle located near the end of the tube in a telescopic sight.

Question 11

Measurements for which order of survey are the most accurate?
A)First-order
B)Second-order
C)Third-order
D)Lower-order

Accepted Answer

The measurements for first-order surveys are the most accurate. The range between the allowable degrees of accuracy is referred to as an order of accuracy. The degree of accuracy of a first-order is greater than a second-order, which is greater than a third-order, which is greater than a lower-order survey. Orders of accuracy are specified for triangulation, traverse, and leveling surveys.

Question 12

Which of the following is true when the bubble of a level is centered?
A)The axis of the level tube is parallel to the vertical axis.
B)The axis of the level tube is perpendicular to the vertical axis.
C)The axis of the level is parallel to the horizontal axis.
D)The axis of the level is perpendicular to the horizontal axis.

Accepted Answer

When the bubble of a level is centered, the axis of the level tube is perpendicular to the vertical axis.

Question 13

Why is a total station considered superior technology to a theodolite?
A)More training is required for using theodolites.
B)Total stations are less expensive than theodolites.
C)Total stations are digitally integrated and more precise.
D)All of the above

Accepted Answer

A total station is considered to be superior to a theodolite because of its digital integration and higher precision. However, total stations are much more expensive and require more training to use than theodolites. Total stations are more reliable when performing surveying jobs spanning large distances and/or challenging terrain. But for simple surveys of smaller areas, theodolites can do the job just as well.

Question 14

Which survey device generates an infrared continuous wave carrier beam and measures the phase-shift of the reflected beam to determine the distance of an object?
A)Theodolite
B)EDM
C)GPS
D)Transit

Accepted Answer

An EDM generates an infrared continuous wave carrier beam and measures the phase-shift of the reflected beam to determine the distance of an object. EDMs utilize the basic distance measurement principal of comparing a measurement to a known distance. With EDMs, the known distance is the wavelength of the modulation of a carrier wave.

Question 15

What is the rate of grade of a 225 ft street with a drop in elevation of 5 ft?
A)-97.78%
B)-2.22%
C)2.22%.
D)97.78%

Accepted Answer

The rate of grade of a 225 ft street with a drop in elevation of 5 ft is -2.22%.
Solution
Gradient = (change in vertical elevation/horizontal difference)
Gradient = (-5 ft)/225 ft = -0.022 ft/ft = -2.22%

Question 16

When setting the next turning point for a traverse line, which of the following would be the most advantageous location for the point?
A)In the lowest spot possible
B)In a shady area
C)On the top of a small hill with good visibility in all directions
D)None of the above

Accepted Answer

When setting the next turning point for a traverse line, a point on the top of a small hill with good visibility in all directions would be the most advantageous location. Although a shady area may be beneficial for the survey crew, it is not necessarily the best place to locate the next turning point. Neither is a low point that may not be easily seen from other locations in the project area.

Question 17

A _______ is a system that is used for detecting objects on the seafloor.
A)Side Scan Sonar
B)LIDAR
C)Total Station
D)GPS

Accepted Answer

Sidescan sonar is a system that is used for detecting objects on the seafloor. Side scan transmits sound energy in the shape of a fan that sweeps the seafloor. The returned signal that has bounced off objects on the ocean bottom is analyzed to create an image of the sea floor. Side scan sonar is typically used with single or multibeam sonar systems to conduct hydrographic surveys.

Question 18

Which of the following coordinates can be used to make horizontal ties?
A)Rectangular: Plus and Offset
B)Polar: Angle and Distance
C)Focal: Triangulation
D)All of the above

Accepted Answer

Horizontal ties can be made using rectangular, polar, and focal coordinates. A complete horizontal tie must always consist of at least two measurements between the control and the point to be located.

Question 19

Fill in the blank:_____ is a method used to align an aerial image with real world coordinates by measuring the exact location of the image center and the exact angle of the camera when the image was taken?
A)Georectification
B)Orthorectification
C)Calibration
D)Distortion

Accepted Answer

Orthorectification is a method used to align an aerial image with real world coordinates by measuring the exact location of the image center and the exact angle of the camera when the image was taken. Georectification is used to stretch an image to align with a map or other spatial data in a geographic information system. Calibration is used to remove distortion in measurement equipment (such as cameras, levels, etc.)

Question 20

Which set of factors best reflects what determines the C-Factor of a mapping system?
A)Aircraft, pilot, terrain, and camera lens
B)Weather, camera, terrain, and flight time
C)Pilot, flight time, camera, and photo lab equipment
D)Camera, flying height, plotting equipment, and ground control

Accepted Answer

The set of factors that includes camera, flying height, plotting equipment and ground control best reflects what determines the C-Factor of a mapping system. Important considerations also include film, photo lab equipment, and operator. To calculate a C-Factor for an aerial photograph, divide the photo scale by the contour interval.

Quiz 2: Data Acquisition

Which of the following statements is not true?

Which of the following type of field note is not generally recorded in a field notebook?

What is the number 74.432126 when shown in four significant figures?

Which method of horizontal distance measurement requires no equipment?

Which of the following is not considered an error type associated with Global Positioning System (GPS) measurements?

Which of the following statements regarding the Standards for Positional Accuracy of Global Positioning System (GPS) data is correct?

For which site condition would it be appropriate to combine conventional optical surveying methods with GPS land surveying methods?

What steps can you take to ensure you, as a surveying professional, are providing high quality survey data?

GPS data integrated into geographic information systems (GIS) provide three-dimensional location information that can be used for which of the following:

Which of the following is not a component of a telescopic sight common to levels and transits?

Measurements for which order of survey are the most accurate?

Which of the following is true when the bubble of a level is centered?

Why is a total station considered superior technology to a theodolite?

Which survey device generates an infrared continuous wave carrier beam and measures the phase-shift of the reflected beam to determine the distance of an object?

What is the rate of grade of a 225 ft street with a drop in elevation of 5 ft?

When setting the next turning point for a traverse line, which of the following would be the most advantageous location for the point?

A _______ is a system that is used for detecting objects on the seafloor.

Which of the following coordinates can be used to make horizontal ties?

Fill in the blank:_____ is a method used to align an aerial image with real world coordinates by measuring the exact location of the image center and the exact angle of the camera when the image was taken?

Which set of factors best reflects what determines the C-Factor of a mapping system?