# A3e551 Vol 1 CDC

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Cshelby91
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Quizzes Created: 3 | Total Attempts: 698
Questions: 78 | Attempts: 281

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• 1.

### If point A and point B fall on the same line, what line type is the space between the twopoints called?

• A.

A skew line.

• B.

A line section

• C.

A line segment

• D.

An intersecting line

C. A line segment
Explanation
A line segment is the space between two points that fall on the same line. It is a portion of a line with two endpoints, namely point A and point B. A line segment is different from a line section, which refers to a portion of a line that includes more than two points. A skew line, on the other hand, does not fall on the same line as point A and point B. Lastly, an intersecting line is a line that crosses or intersects another line, and is not relevant to the space between two points on the same line.

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• 2.

### What angle must lines intersect to be considered perpendicular?

• A.

180Â°

• B.

90Â°.

• C.

89.99Â°.

• D.

45Â°.

B. 90Â°.
Explanation
Lines are considered perpendicular when they intersect at a 90Â° angle. This angle forms a right angle, where the two lines are perpendicular to each other and do not share any common points or segments. Any other angle measurement, such as 180Â°, 89.99Â°, or 45Â°, would not meet the criteria for perpendicular lines.

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• 3.

### What numbers are the first three whole integers proceeding from the zero point to the righton the X axis?

• A.

â€“1, â€“2, â€“3.

• B.

0, â€“1, â€“2

• C.

1, 2, 3

• D.

0, 1, 2.

C. 1, 2, 3
Explanation
The question is asking for the first three whole integers proceeding from the zero point to the right on the X axis. The X axis is a horizontal line, and moving to the right means moving in the positive direction. The numbers -1, -2, -3 are moving to the left on the X axis, so they are not the correct answer. The numbers 0, -1, -2 are also moving to the left on the X axis, so they are not the correct answer either. The numbers 1, 2, 3 are moving to the right on the X axis, so they are the correct answer.

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• 4.

### How many units are there per inch on the 20 scale on the civil engineer’s scale?

• A.

1

• B.

10

• C.

20

• D.

40

C. 20
Explanation
The answer is 20 because the question specifically asks for the number of units per inch on the 20 scale of the civil engineer's scale. Since the scale is labeled as 20, it means that there are 20 units per inch on this particular scale.

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• 5.

### If a drawing is scaled at 1:10 in feet, the second tick mark to the right of the one on the 10scale represents what?

• A.

12"

• B.

8'

• C.

12'

• D.

8"

C. 12'
Explanation
The second tick mark to the right of the one on the 10-scale represents a length of 12 feet.

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• 6.

### What feature does hidden lines represent in drafting?

• A.

Lines that represent hidden objects

• B.

Lines that represent temporary objects.

• C.

Lines that define the edges of an object and are directly visible

• D.

Lines that define the edges of an object but are not directly visible.

D. Lines that define the edges of an object but are not directly visible.
Explanation
Hidden lines in drafting represent the edges of an object that are not directly visible. These lines are used to show the hidden features or components of an object that are not visible from a particular viewpoint. By using hidden lines, drafters can accurately represent the complete structure of an object, including its hidden or obscured parts, allowing for a more comprehensive understanding of the design.

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• 7.

### Which type of line is a fine, solid line terminated at each end by arrowheads or hash marks?

• A.

Dimension

• B.

Extension

• C.

• D.

Center

A. Dimension
Explanation
A fine, solid line terminated at each end by arrowheads or hash marks is typically used to represent a dimension in technical drawings. This line indicates the length, width, or height of an object and provides important measurement information. It helps to visually communicate the size and scale of an object or feature in a drawing.

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• 8.

### Which line thickness represents major object lines, cut lines, drawing block borders, andtitles?

• A.

Thin

• B.

Wide

• C.

0.35 mm

• D.

XX Wide

B. Wide
Explanation
The line thickness that represents major object lines, cut lines, drawing block borders, and titles is "wide".

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• 9.

### When necessary, vertical dimension should be readable from what side of the drawing?

• A.

Top

• B.

Left

• C.

Right

• D.

Bottom

C. Right
Explanation
The vertical dimension should be readable from the right side of the drawing. This means that the dimensions should be positioned in such a way that they can be easily read and understood when looking at the drawing from the right side. This ensures clarity and accuracy in interpreting the dimensions of the drawing.

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• 10.

### Which method of dimensioning round objects creates a clean image when tolerances areclose?

• A.

Facility

• B.

Angular

• C.

Geometric

• D.

Rectangular

B. Angular
Explanation
Angular dimensioning is the method of dimensioning round objects that creates a clean image when tolerances are close. This method involves using angles to specify the dimensions of the object, which can be more precise and visually clear compared to other methods such as geometric or rectangular dimensioning. By using angular dimensioning, the dimensions of the round object can be accurately communicated, even when the tolerances are close, ensuring a clean and precise image.

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• 11.

### Where can you find information for installing a unique light fixture in the room on areflected ceiling plan?

• A.

General Notes

• B.

Specific Notes

• C.

Detail Drawings

• D.

Light and Fixture Schedule

B. Specific Notes
Explanation
Specific Notes would be the correct answer because they typically provide detailed information and instructions for installing specific items or fixtures in a construction plan. In this case, the specific notes would likely include information on how to install the unique light fixture on the reflected ceiling plan. General Notes provide more general information about the project, Detail Drawings provide more detailed information about specific parts of the project, and the Light and Fixture Schedule would provide a list of all the light fixtures in the project but may not provide installation instructions for a specific unique fixture.

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• 12.

### What information is given on a door schedule?

• A.

Specific characteristics of doors and windows in a facility.

• B.

Specific characteristics of door types in a facility

• C.

The number of doors to be installed in a facility

• D.

The sequence of when doors will be installed

B. Specific characteristics of door types in a facility
Explanation
A door schedule provides specific characteristics of door types in a facility. This includes details such as the dimensions, materials, hardware, fire ratings, and any other specifications related to the doors. This information is important for architects, contractors, and other professionals involved in the construction or renovation of a building as it helps them accurately plan and order the required doors.

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• 13.

### What type of drawing shows an object’s left side, bottom side, and axonometric projection?

• A.

Isometric projection

• B.

Orthographic drawing

• C.

Orthographic projection

• D.

Axonometric projection

C. Orthographic projection
Explanation
Orthographic projection is the correct answer because it is a type of drawing that shows an object's left side, bottom side, and axonometric projection. In orthographic projection, the object is represented using multiple views, such as front, top, and side views, to accurately depict its dimensions and features. This type of drawing is commonly used in engineering, architecture, and design to communicate the shape and structure of an object.

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• 14.

### What type of sketch is developed if a water heater is being upgraded in building?

• A.

Detail sketches

• B.

Building sketches

• C.

Location sketches

• D.

Elevation sketches

B. Building sketches
Explanation
When a water heater is being upgraded in a building, the type of sketch that would be developed is a building sketch. This type of sketch would focus on the overall structure and layout of the building, including the location and arrangement of various elements such as the water heater. It would provide a visual representation of the building and its components, allowing for better planning and understanding of the upgrade process.

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• 15.

### Which drawing best describes elevation?

• A.

A drawing depicting the actual dimensions of a structure

• B.

A non-perspective drawing that does not show dimensions of a building

• C.

A flat, non-perspective, scale drawing of a building that may have texture of materials

• D.

A drawing of a particular side of a building showing relationship between windows and doors

C. A flat, non-perspective, scale drawing of a building that may have texture of materials
Explanation
The correct answer is a flat, non-perspective, scale drawing of a building that may have texture of materials. This type of drawing, known as an elevation drawing, shows the vertical dimensions and appearance of a building's faÃ§ade. It provides a view of a specific side of the building, showcasing the relationship between windows and doors. The drawing is not shown in perspective, meaning it does not have depth or three-dimensional qualities. Additionally, it is a scale drawing, meaning that the proportions and measurements are accurately represented. The inclusion of textures of materials adds further detail and realism to the drawing.

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• 16.

### How would you best describe a vector graphic in computer aided drafting (CAD)?

• A.

The actual line style and type shown on the computer screen.

• B.

One of the three intersecting axes in three-dimensional CAD space

• C.

The representation of individual points within the Cartesian geometrical area.

• D.

The representation of the distance between two points within the Cartesian geometrical area.

D. The representation of the distance between two points within the Cartesian geometrical area.
Explanation
A vector graphic in computer aided drafting (CAD) represents the distance between two points within the Cartesian geometrical area. This means that the graphic is created by specifying the coordinates of two points and the computer then calculates and displays the line connecting those points. It does not refer to the line style or type shown on the screen, nor does it refer to the intersecting axes in three-dimensional space. Instead, it focuses on the geometric representation of the distance between two points.

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• 17.

### What feature is unique about Geographic Information System (GIS) software?

• A.

GIS software uses drafting techniques to represent information in an associated database.

• B.

GIS software is a more specific software type that can be used for detailed drawings.

• C.

GIS software uses drafting techniques to represent information in some drawings.

• D.

Raster images are better represented in GIS software products.

A. GIS software uses drafting techniques to represent information in an associated database.
Explanation
GIS software is unique because it uses drafting techniques to represent information in an associated database. This means that it combines spatial data (such as maps and satellite imagery) with attribute data (such as population statistics or land use information) to create a comprehensive database. This allows users to analyze and visualize data in a spatial context, making it a powerful tool for mapping, planning, and decision-making purposes. Other software types may also use drafting techniques or handle raster images, but the integration of spatial and attribute data is what sets GIS software apart.

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• 18.

### Which Computer Aided Design and Drafting (CADD) standard provides a resource toresolve tough drafting problems?

• A.

Architectural Graphic Standard (AGS).

• B.

International Standards Organization (ISO).

• C.

American National Standards Institute (ANSI).

• D.

Architectural Engineering and Construction (AEC).

A. Architectural Graphic Standard (AGS).
Explanation
The Architectural Graphic Standard (AGS) is a Computer Aided Design and Drafting (CADD) standard that provides a resource to resolve tough drafting problems. It is a comprehensive reference for architectural and construction professionals, offering guidelines and best practices for drafting and design. The AGS covers a wide range of topics including building materials, construction techniques, and graphic standards. By following the AGS, designers and drafters can ensure accuracy and consistency in their work, helping to resolve any challenges they may encounter during the drafting process.

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• 19.

### Which Computer Aided Design and Drafting (CADD) standard addresses the entire lifecycle of facilities within the Department of Defense (DOD)?

• A.

Architectural Graphic Standard (AGS).

• B.

International Standards Organization (ISO).

• C.

American National Standards Institute (ANSI).

• D.

Architectural Engineering and Construction (AEC).

D. Architectural Engineering and Construction (AEC).
Explanation
The correct answer is Architectural Engineering and Construction (AEC). This standard addresses the entire lifecycle of facilities within the Department of Defense (DOD). It is specifically designed for computer-aided design and drafting (CADD) in the field of architectural engineering and construction. This standard ensures that all aspects of the facility's lifecycle, from design to construction to maintenance, are properly addressed and documented. It helps in maintaining consistency and interoperability across different projects and ensures that the facilities meet the required standards and regulations of the DOD.

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• 20.

### Where can you find pre-drawn detail drawings rather than redrawing fire hydrantinstallation details for every project?

• A.

Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center.

• B.

American National Standards Institute

• C.

American Institute of Architects.

• D.

Department of Defense.

A. Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center.
Explanation
The Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center is the correct answer because it is a resource where pre-drawn detail drawings can be found. This means that instead of having to redraw fire hydrant installation details for every project, one can simply access the pre-drawn drawings from the CAD-BIM Technology Center. This saves time and effort in creating new drawings from scratch and ensures consistency and accuracy across projects. The other options, such as the American National Standards Institute, American Institute of Architects, and Department of Defense, do not specifically mention providing pre-drawn detail drawings for fire hydrant installations.

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• 21.

### What organization has information about design, construction, and operation of facilities?

• A.

Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center.

• B.

American National Standards Institute.

• C.

American Institute of Architects.

• D.

Department of Defense.

A. Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center.
Explanation
The Computer Aided Drafting-Building Information Modeling (CAD-BIM) Technology Center is the correct answer because it is an organization that specializes in providing information about design, construction, and operation of facilities. The CAD-BIM Technology Center is dedicated to promoting the use of CAD and BIM technologies in the architecture, engineering, and construction industries. They provide resources, training, and support to professionals in these fields, making them a reliable source of information for facility design, construction, and operation.

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• 22.

### What basic crafts do you need to complete a set of construction drawings?

• A.

Civil, carpentry, architectural, mechanical, and details.

• B.

Site, structural, architectural, mechanical, and electrical.

• C.

Civil, structural, architectural, mechanical, and electrical.

• D.

Civil, carpentry, architectural, mechanical, and electrical.

C. Civil, structural, architectural, mechanical, and electrical.
Explanation
To complete a set of construction drawings, you would need basic crafts such as civil, structural, architectural, mechanical, and electrical. These crafts cover different aspects of the construction process. Civil drawings focus on the site and foundation, structural drawings deal with the framework and load-bearing elements, architectural drawings include the design and aesthetics of the building, mechanical drawings cover the HVAC and plumbing systems, and electrical drawings involve the electrical wiring and fixtures. All these crafts are essential for creating comprehensive and accurate construction drawings.

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• 23.

### Where can you find how much weight the soil under a proposed facility can support?

• A.

Site plan

• B.

Column plan

• C.

Structural plan

• D.

Foundation plan

D. Foundation plan
Explanation
The foundation plan provides information on how much weight the soil under a proposed facility can support. This plan includes details about the type of foundation to be used, such as footings or piles, and the dimensions and specifications for these elements. By analyzing the foundation plan, engineers can determine the load-bearing capacity of the soil and ensure that the proposed facility will be adequately supported.

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• 24.

### Where can you look in a drawing set to find a vertical depiction of the entire building?

• A.

Foundation plan

• B.

Structural plan

• C.

Column plan

• D.

Elevations

D. Elevations
Explanation
Elevations are drawings that show a vertical depiction of the entire building. They provide a view of the building from different sides, showing the height, shape, and design of the structure. By looking at the elevations in a drawing set, one can get a clear understanding of how the building will look from different perspectives. The foundation plan, structural plan, and column plan may provide information about specific aspects of the building, but they do not give a complete vertical depiction of the entire structure like elevations do.

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• 25.

### Which type of drawing shows features about development areas and proposed buildings?

• A.

Master plan

• B.

Preliminary.

• C.

Site plan

• D.

Revised

A. Master plan
Explanation
A master plan is a type of drawing that shows features about development areas and proposed buildings. It provides a comprehensive overview of a project, including the layout of buildings, infrastructure, and land use. Unlike preliminary or revised plans, a master plan is a more detailed and finalized representation of the proposed development. It serves as a guide for future development and helps stakeholders visualize the overall vision for the project.

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• 26.

### Which drawing set shows necessary changes approved by the contracting officer andsupervising engineer?

• A.

Shop drawings

• B.

Revised drawings

• C.

Marked-up as-built

• D.

Official contract drawings

B. Revised drawings
Explanation
Revised drawings are the correct answer because they show the necessary changes that have been approved by the contracting officer and supervising engineer. These drawings are updated versions of the original drawings, reflecting any modifications or adjustments that have been made to the design. They serve as a record of the approved changes and are used as a reference for construction or fabrication purposes.

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• 27.

### If a drawing is created using International Feet, what happens when changing the MasterUnits to Survey Feet?

• A.

All elements in the drawing will not automatically scale to Survey Feet

• B.

All elements in the drawing will automatically scale the model space elements to Survey Feet

• C.

All elements in the drawing will automatically scale all elements in the drawing to Survey Feet

• D.

All elements in the drawing will not automatically scale the model space elements to Survey Feet

A. All elements in the drawing will not automatically scale to Survey Feet
Explanation
When changing the MasterUnits to Survey Feet, all elements in the drawing will not automatically scale to Survey Feet. This means that the elements will remain in their original size and will not be adjusted to match the new unit of measurement.

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• 28.

### What sheet file-specific information may be included in a computer aided drafting (CAD)drawing set?

• A.

Notes, schedules, and layers not shared between CAD filed or drawings.

• B.

Notes, symbols, and titles not shared between CAD filed or drawings

• C.

Notes, schedules, and layers shared between CAD filed or drawings

• D.

Notes, symbols, and titles shared between CAD filed or drawings

B. Notes, symbols, and titles not shared between CAD filed or drawings
Explanation
In a computer aided drafting (CAD) drawing set, sheet file-specific information may include notes, symbols, and titles that are not shared between CAD files or drawings. This means that these specific details are unique to each sheet file and are not replicated or shared across different CAD files or drawings.

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• 29.

### Computer aided drafting (CAD) layer names can consist of up to how many parts?

• A.

Six

• B.

Five

• C.

Four

• D.

Three

B. Five
Explanation
CAD layer names can consist of up to five parts. This means that the name of a layer in computer aided drafting can be made up of a maximum of five separate components. These components could include information such as the discipline, the function, the material, the phase, or any other relevant aspect of the layer. Having the ability to include up to five parts in a CAD layer name allows for more detailed and organized documentation of the different elements within a drawing or design.

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• 30.

### Using figures 1–33 and 1–34, what annotation is the proper layer name for plumbingrevision indicators and text?

• A.

M-ANNO-REVC

• B.

M-ANNO-REVS

• C.

P-ANNO-REVS.

• D.

P-ANNO-REVC.

C. P-ANNO-REVS.
Explanation
The correct answer is P-ANNO-REVS. This is because the question asks for the proper layer name for plumbing revision indicators and text. The "P" in the layer name indicates that it is related to plumbing, and "ANNO" suggests that it is an annotation layer. "REVS" indicates that it is for revision indicators and text. Therefore, P-ANNO-REVS is the most appropriate layer name for this purpose.

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• 31.

### What four fields are mandatory for model file naming conventions?

• A.

Program code, discipline designator, model file type, and project defined sequencing number.

• B.

Project code, discipline designator, model file type, and project defined sequencing number.

• C.

Program code, discipline designator, model file type, and user-defined sequencing number

• D.

Project code, discipline designator, model file type, and user-defined sequencing number.

D. Project code, discipline designator, model file type, and user-defined sequencing number.
Explanation
The correct answer is project code, discipline designator, model file type, and user-defined sequencing number. These four fields are mandatory for model file naming conventions. The project code is used to identify the specific project, the discipline designator indicates the discipline or department responsible for the model, the model file type specifies the type of file being used, and the user-defined sequencing number helps to differentiate between different versions or revisions of the model file.

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• 32.

### What two places on a drawing does the sheet identifier number belong?

• A.

The electronic file type and the sheet identification block.

• B.

The electronic file name and the layer identification block

• C.

The electronic file name and the sheet identification block.

• D.

The electronic block name and the sheet identification block.

C. The electronic file name and the sheet identification block.
Explanation
The sheet identifier number belongs to the electronic file name and the sheet identification block. This means that the number is used to identify the specific sheet within the electronic file, and it is also included in the sheet identification block to provide a clear reference for that particular sheet.

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• 33.

### What blocks are included within the title block on a D size sheet?

• A.

Designer identification block, issue block, management block, and drawn by block.

• B.

Designer identification block, issue block, management block, and sheet identification block.

• C.

Designer identification block, management block, project identification block/sheet title block, and sheet identification block.

• D.

Designer identification block, issue block, management block, project identification block/sheet title block, and sheet identification block.

D. Designer identification block, issue block, management block, project identification block/sheet title block, and sheet identification block.
Explanation
The title block on a D size sheet includes the designer identification block, issue block, management block, project identification block/sheet title block, and sheet identification block. These blocks are used to provide important information about the design, such as the designer's identity, the issue number, management details, project identification, and sheet identification.

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• 34.

### What title should go in the project identification block if a foundation plan drawing containsdetail drawings?

• A.

Foundation plan.

• B.

Project name

• C.

Detail plan

• D.

Floor plan.

A. Foundation plan.
Explanation
The title that should go in the project identification block if a foundation plan drawing contains detail drawings is "Foundation plan." This is because the foundation plan specifically focuses on the details and specifications of the foundation of a building or structure. It provides information on the dimensions, materials, and layout of the foundation, including any additional details that may be necessary for construction purposes. Therefore, "Foundation plan" is the most appropriate title for this type of drawing.

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• 35.

### What three pieces of information are shown in a detail identifier?

• A.

Section, elevation and detail

• B.

Sheet identifier, sheet taken from, and sheet shown

• C.

Detail identifier, sheet taken from, and sheet shown.

• D.

Section identifier, sheet taken from, and sheet shown.

C. Detail identifier, sheet taken from, and sheet shown.
Explanation
A detail identifier, sheet taken from, and sheet shown are the three pieces of information shown in a detail identifier. The detail identifier is used to identify a specific detail on a drawing, while the sheet taken from indicates the sheet or drawing from which the detail is taken, and the sheet shown indicates the sheet or drawing on which the detail is shown.

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• 36.

### What key distinction is the difference between a section identifier and a detail identifier?

• A.

A section identifier has an unfilled triangle while a detail identifier has no triangle.

• B.

A section identifier has a darkened triangle while a detail identifier has no triangle.

• C.

A section identifier has an unfilled triangle while a detail identifier has no triangle.

• D.

A section identifier has no triangle while a detail identifier has a darkened triangle.

B. A section identifier has a darkened triangle while a detail identifier has no triangle.
Explanation
A section identifier is distinguished by a darkened triangle, while a detail identifier does not have any triangle.

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• 37.

### What happens when a preliminary set of drawings is reviewed by the program manager?

• A.

The set of drawings comes back for revisions

• B.

The set of drawings goes to contracting for bid.

• C.

The set of drawings is filed as the as-built drawings.

• D.

The drawings go to the construction teams so they can begin work.

A. The set of drawings comes back for revisions
Explanation
When a preliminary set of drawings is reviewed by the program manager, it is common for the set of drawings to come back for revisions. This is because the program manager may identify areas that need improvement, changes that need to be made, or errors that need to be corrected. The purpose of the review is to ensure that the drawings are accurate, complete, and aligned with the project requirements. Therefore, it is expected that revisions will be made to the initial set of drawings based on the program manager's feedback.

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• 38.

### What type of file system is a system of software, hardware, and individual files organizedsystematically for easy access to record drawings?

• A.

An electronic fault.

• B.

An electronic vault.

• C.

Electronic flat files.

• D.

Record drawing management.

B. An electronic vault.
Explanation
An electronic vault is a type of file system that consists of software, hardware, and individual files organized systematically for easy access to record drawings. It is designed to securely store and manage important documents, such as record drawings, in a digital format. This allows for efficient retrieval and sharing of files, ensuring that the information is readily available when needed.

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• 39.

### What type of network is the linking of servers and personal computers within a building oroffice area?

• A.

Wide area network.

• B.

Local area network.

• C.

Storage area network.

• D.

Metropolitan area network.

B. Local area network.
Explanation
A local area network (LAN) is a type of network that connects servers and personal computers within a building or office area. It is typically used for sharing resources such as files, printers, and internet access among the devices connected to it. LANs are characterized by high-speed data transfer rates and low latency, making them ideal for small-scale networking needs. In contrast, wide area networks (WANs) connect devices over larger geographical areas, while storage area networks (SANs) are dedicated to providing high-speed access to storage devices. Metropolitan area networks (MANs) cover larger areas than LANs but smaller than WANs, connecting multiple LANs within a city or metropolitan area.

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• 40.

### What step is the final step in preparing as-built drawings?

• A.

Prepare a final compact disc (CD) with the prefinal drawings and be sure the drawings are stored in the appropriate electronic database or server location.

• B.

Prepare a final CD with the as-built drawings and be sure the drawings are stored in the appropriate flat file drawer system.

• C.

Prepare a final CD with the as-built drawings and be sure the drawings are stored in the appropriate electronic database or server location.

• D.

Prepare a final CD with the shop drawings and be sure the drawings are stored in the appropriate electronic database or server location.

C. Prepare a final CD with the as-built drawings and be sure the drawings are stored in the appropriate electronic database or server location.
Explanation
The final step in preparing as-built drawings is to prepare a final CD with the as-built drawings and ensure that the drawings are stored in the appropriate electronic database or server location. This step ensures that the as-built drawings are properly documented and easily accessible for future reference or modifications. Storing the drawings in an electronic database or server location allows for efficient organization and retrieval of the drawings when needed.

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• 41.

### What GeoBase fundamental consists of several layers within a Geographic InformationSystem to support a specific mission?

• A.

Common Installation Picture

• B.

Regional Installation Picture

• C.

Mission Data Layer

• D.

Mission Data Set

D. Mission Data Set
Explanation
The correct answer is "Mission Data Set". A Mission Data Set is a fundamental component within a Geographic Information System (GIS) that consists of several layers specifically designed to support a specific mission. These layers contain relevant geographical data and information that is necessary for carrying out the mission effectively.

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• 42.

### Why is GeoBase divided into four decision support environments?

• A.

To more effectively support various support requirements.

• B.

To more effectively support various strategic requirements.

• C.

To more effectively support various mapping requirements.

• D.

To more effectively support various decision making requirements

C. To more effectively support various mapping requirements.
Explanation
The reason why GeoBase is divided into four decision support environments is to more effectively support various mapping requirements. This division allows for tailored support and functionality for different mapping needs, ensuring that users can access the specific tools and resources they require for their mapping tasks. By dividing GeoBase in this way, it becomes a more versatile and adaptable platform for supporting a wide range of mapping requirements.

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• 43.

### How is a plane defined when working in mapping and surveying?

• A.

Each plane is parallel to a line drawn from Earthâ€™s surface to its center.

• B.

Each line is parallel to a plane drawn from Earthâ€™s surface to its center.

• C.

Each plane is perpendicular to a line drawn from Earthâ€™s surface to its center

• D.

Each line is perpendicular to a plane drawn from Earthâ€™s surface to its center.

C. Each plane is perpendicular to a line drawn from Earthâ€™s surface to its center
Explanation
Each plane in mapping and surveying is defined as perpendicular to a line drawn from Earth's surface to its center. This means that the plane intersects the line at a 90-degree angle. This definition is important in accurately representing and measuring geographic features and distances on maps and surveys.

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• 44.

### What data characteristics of a map projection causes distortion?

• A.

Area, shape, length, direction

• B.

Shape, area, distance, direction

• C.

Length, area, direction, dimension

• D.

Shape, distance, dimension, length

B. Shape, area, distance, direction
Explanation
Map projections are mathematical transformations used to represent the curved surface of the Earth on a flat map. However, due to the spherical shape of the Earth, it is impossible to accurately represent all aspects of the Earth's surface on a flat map. This causes distortion in various data characteristics such as shape, area, distance, and direction. The chosen answer correctly identifies these characteristics as being affected by the distortion caused by map projections.

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• 45.

### Which projection model is not one of the three distinct models of the Projections-by-Surface category of map projections?

• A.

Cylindrical

• B.

Conical

• C.

Planar

• D.

Linear

D. Linear
Explanation
The question asks for the projection model that is not one of the three distinct models of the Projections-by-Surface category. The three distinct models mentioned are Cylindrical, Conical, and Planar. Linear is not one of the three distinct models, therefore it is the correct answer.

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• 46.

### What factor is the most vital part of a Geographic Information System (GIS)?

• A.

Data

• B.

People

• C.

Software

• D.

Satellite Images

A. Data
Explanation
Data is the most vital part of a Geographic Information System (GIS) because it is the foundation on which all other components of the system rely. Without accurate and reliable data, the GIS cannot perform its intended functions of capturing, storing, analyzing, and displaying geographic information. Data provides the necessary information about the physical and cultural features of a location, allowing users to make informed decisions and solve spatial problems. Additionally, data quality and accuracy directly impact the overall effectiveness and usefulness of a GIS.

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• 47.

### Geographic Information System (GIS) data is divided into what two broad categories?

• A.

Tabular and Raster.

• B.

Geospatial and vector.

• C.

Geospatial and Tabular

• D.

Georeferenced and Tabular

C. Geospatial and Tabular
Explanation
GIS data is divided into two broad categories: geospatial and tabular. Geospatial data refers to the location-based information that is represented as points, lines, or polygons on a map. This type of data includes features such as roads, buildings, and rivers. Tabular data, on the other hand, is non-spatial data that is organized in tables or databases. It contains attribute information about the geospatial features, such as their names, population, or other characteristics. By categorizing GIS data into geospatial and tabular, it allows for a more organized and efficient analysis and management of spatial information.

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• 48.

### Which data model is an efficient way to accurately represent continuous surfaces such asfield and hills?

• A.

Raster

• B.

Vector

• C.

Tabular.

• D.

Triangulated irregular network.

D. Triangulated irregular network.
Explanation
The Triangulated irregular network (TIN) data model is an efficient way to accurately represent continuous surfaces such as fields and hills. TIN divides the surface into a series of non-overlapping triangles, where each triangle is defined by its three vertices. This allows for a more accurate representation of the surface compared to other data models like raster, vector, or tabular, which may not capture the irregularities and variations in the surface as effectively. TIN is commonly used in terrain modeling and analysis, as it provides a flexible and accurate representation of continuous surfaces.

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• 49.

### How would you define the intersection of the equator and prime meridian in a geographiccoordinate system (GCS)?

• A.

The origin of the grid.

• B.

The origin of the graticule.

• C.

The projection of a square.

• D.

The origin of a coordinate system.

B. The origin of the graticule.
Explanation
The intersection of the equator and prime meridian in a geographic coordinate system (GCS) is referred to as the origin of the graticule. The graticule is a network of lines that form a grid on a map or globe, consisting of lines of latitude (including the equator) and lines of longitude (including the prime meridian). The origin of the graticule is where these two lines intersect, serving as the starting point for measuring coordinates on the map or globe.

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• 50.

### How much ground distance is covered by one degree of latitude at a given point on Earth?

• A.

111 meters

• B.

111 minutes

• C.

111 kilometers

• D.

111 centimeters

C. 111 kilometers
Explanation
One degree of latitude covers approximately 111 kilometers of ground distance at a given point on Earth. This is because Earth's circumference is approximately 40,075 kilometers, and there are 360 degrees in a full circle. Therefore, dividing the circumference by the number of degrees gives an average distance of 111 kilometers per degree of latitude.

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