CDC 3e551 Engineering Journeyman

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  • 1/258 Questions

    Because someone unfamiliar with surveying may use your field notes, the field notes must be

    • Clear and detailed
    • General and in English
    • Specific and in active voice
    • Locked in a box and protected from tampering
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About This Quiz

This CDC 3E551 Engineering Journeyman quiz assesses knowledge in geospatial engineering, focusing on systems like WGS84 and UTM, and concepts such as conformal projections and grid north. It's designed for Air Force personnel to master navigation and mapping techniques.

CDC 3e551 Engineering Journeyman - Quiz

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  • 2. 

    Since field notes are legal documents and we do not erase anything, how do we mark corrections?

    • Line through error, note change above the line

    • Scratch out error, note change on separate page

    • Line through error, note change on separate page

    • Tear out page, start the survey over and begin a new page

    Correct Answer
    A. Line through error, note change above the line
    Explanation
    When marking corrections in field notes, the correct method is to line through the error and note the change above the line. This ensures that the original error is still visible while the correction is clearly indicated. By marking the change above the line, it is easy to identify and understand the correction without any confusion. This method maintains the integrity of the legal document by not erasing anything and providing a clear record of the correction made.

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  • 3. 

    Which is NOT considered a first responder?

    • Firefighters

    • Law enforcement

    • Mortuary affairs personnel

    • Emergency medical personnel

    Correct Answer
    A. Mortuary affairs personnel
    Explanation
    Mortuary affairs personnel are not considered first responders because their primary role is not to respond to emergencies or provide immediate medical assistance. Instead, they are responsible for the proper handling, identification, and disposition of deceased individuals. While their work is important in the aftermath of emergencies, they do not typically engage in the initial response or provide immediate aid to those in need.

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  • 4. 

    To ensure that each blow to the dynamic cone penetrometer (DCP) anvil has the same force, what action must take place with regards to the hammer?

    • Ease it onto the anvil

    • Throw it down on the anvil

    • Allow the hammer to freefall

    • Push the hammer into the anvil

    Correct Answer
    A. Allow the hammer to freefall
    Explanation
    To ensure that each blow to the dynamic cone penetrometer (DCP) anvil has the same force, the hammer must be allowed to freefall. This allows gravity to act on the hammer, providing a consistent force each time it hits the anvil. If the hammer is eased onto the anvil or pushed into it, the force may vary depending on the amount of force applied by the person. Similarly, throwing the hammer down on the anvil may result in inconsistent force due to the varying amount of force applied during the throw. Therefore, allowing the hammer to freefall ensures a consistent force for each blow to the anvil.

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  • 5. 

    What determines the precision requirements of a survey?

    • Purpose

    • Features

    • Equipment

    • Graduated rod

    Correct Answer
    A. Purpose
    Explanation
    The purpose of a survey determines the precision requirements because different purposes may require different levels of accuracy. For example, a survey for construction purposes may require a high level of precision in order to ensure accurate measurements and alignment, while a survey for general information gathering may not require the same level of precision. Therefore, the purpose of the survey is a key factor in determining the precision requirements.

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  • 6. 

    In the best-case scenario or ideal survey times, which value is better if it is lower?

    • Antenna height

    • Satellite elevation

    • Number of satellites

    • Dilution of precisions (DOP)

    Correct Answer
    A. Dilution of precisions (DOP)
    Explanation
    In the best-case scenario or ideal survey times, a lower value of Dilution of Precisions (DOP) is better. DOP is a measure of the geometric quality of satellite positioning signals and indicates the accuracy and reliability of the GPS positioning solution. A lower DOP value signifies a better positioning solution with less uncertainty and better accuracy. Therefore, in ideal survey conditions, a lower DOP value is preferred.

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  • 7. 

    What are the three type groups of vector data?

    • Points, lines, and imagery

    • Points, lines, and polygons

    • Points, polygons, and imagery

    • Points, lines, polygons, and imagery

    Correct Answer
    A. Points, lines, and polygons
    Explanation
    The three type groups of vector data are points, lines, and polygons. Points represent specific locations on a map, such as cities or landmarks. Lines are used to represent linear features like roads, rivers, or boundaries. Polygons are used to represent areas or regions, such as countries, states, or parks. These three types of vector data are commonly used in geographic information systems (GIS) to represent and analyze spatial information.

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  • 8. 

    What name do we give to a roofless cutaway of a build from a bird’s eye view?

    • Detail

    • Sketch

    • Elevation

    • Floor plan

    Correct Answer
    A. Floor plan
    Explanation
    A floor plan is a bird's eye view of a building that shows the layout and arrangement of rooms, walls, and other architectural features. It is a roofless cutaway representation of a building, providing a detailed overview of the interior spaces and their relationships to each other. This term is commonly used in architecture and construction to help visualize and understand the design and functionality of a building.

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  • 9. 

    Which component of the Federal Acquisition Regulation (FAR) provides guidance on the solicitation or acceptance of gifts or favors from contractors?

    • Gratuities

    • Ratification

    • Relationships

    • General provisions

    Correct Answer
    A. Gratuities
    Explanation
    The component of the Federal Acquisition Regulation (FAR) that provides guidance on the solicitation or acceptance of gifts or favors from contractors is Gratuities. This component outlines the rules and regulations regarding the acceptance of gifts or favors by government officials to ensure fairness and transparency in the procurement process. It prohibits government officials from accepting anything of value from contractors that could influence their decision-making or create a conflict of interest. By including guidelines on gratuities, the FAR aims to maintain the integrity and impartiality of the acquisition process.

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  • 10. 

    What system is used to classify soils based on the size of individual particles?

    • Soil Classifications Library (SCL)

    • Joint Engineering Soils Directory (JESD)

    • Unified Soils Classification System (USCS)

    • Combined Soils Categorization System (CSCS)

    Correct Answer
    A. Unified Soils Classification System (USCS)
    Explanation
    The Unified Soils Classification System (USCS) is used to classify soils based on the size of individual particles. This system categorizes soils into three main groups: coarse-grained soils, fine-grained soils, and highly organic soils. Within each group, further classification is done based on the percentage of different particle sizes present in the soil. This system is widely used in geotechnical engineering and helps in determining the engineering properties and behavior of different types of soils.

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  • 11. 

    Less damage is dealt if an explosion occurs toward which side of a facility?

    • Top

    • Bottom

    • Longest side

    • Shortest side

    Correct Answer
    A. Shortest side
    Explanation
    An explosion occurring toward the shortest side of a facility would result in less damage. This is because the shortest side would have a smaller surface area compared to the other sides, meaning there would be less material to be affected by the explosion. Therefore, the impact and spread of the explosion would be limited, resulting in less damage to the facility.

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  • 12. 

    What do we call a projection that preserves angles, as opposed to shape, area, or distance?

    • Reference

    • Azimuthal

    • Conformal

    • Cylindrical

    Correct Answer
    A. Conformal
    Explanation
    A conformal projection is a type of projection that preserves angles, meaning that the shape of the objects on the map may be distorted, but the angles between them will remain the same. This is in contrast to other types of projections such as azimuthal and cylindrical, which may preserve other properties like shape, area, or distance, but not necessarily angles.

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  • 13. 

    At what decimal feet must the 2-peg test results be before the instrument needs calibration?

    • .08

    • .18

    • .25

    • .125

    Correct Answer
    A. .08
    Explanation
    The correct answer is .08. This means that the 2-peg test results must be at .08 decimal feet before the instrument needs calibration.

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  • 14. 

    Regarding installing survey monuments, what are the two most common soil types?

    • A and D

    • B and G

    • C and G

    • D and E

    Correct Answer
    A. C and G
    Explanation
    The two most common soil types for installing survey monuments are C and G.

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  • 15. 

    As of 2017, federal agencies, including the Department of Defense (DOD), were ordered to discontinue the use of which satellite constellation?

    • Galileo

    • BeiDou

    • Navigation Satellite Timing and Ranging (NAVSTAR)

    • Globalnaya navigatsionnaya sputnikovaya sistema (GLONASS)

    Correct Answer
    A. Globalnaya navigatsionnaya sputnikovaya sistema (GLONASS)
    Explanation
    The correct answer is Globalnaya navigatsionnaya sputnikovaya sistema (GLONASS). In 2017, federal agencies, including the Department of Defense, were ordered to discontinue the use of GLONASS. This indicates that GLONASS was being used by these agencies prior to the order.

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  • 16. 

    What map data comprises facilities, physical features, and utilities within the installation boundary?

    • Mission data set (MDS)

    • Mission data layer (MDL)

    • Common installation picture (CIP)

    • Installation development plan (IDP)

    Correct Answer
    A. Common installation picture (CIP)
    Explanation
    The correct answer is Common installation picture (CIP). The CIP includes map data that consists of facilities, physical features, and utilities within the installation boundary. This data provides a comprehensive overview of the installation, allowing for effective planning and management of resources. The CIP helps in understanding the layout and infrastructure of the installation, facilitating decision-making processes and ensuring efficient operations.

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  • 17. 

    Which tables give data unique characteristics?

    • Data

    • Excel

    • Raster

    • Attribute

    Correct Answer
    A. Attribute
    Explanation
    Tables with attribute data provide unique characteristics as they contain specific information about the features or objects in a dataset. Attribute tables store descriptive information such as names, labels, categories, or numerical values associated with each feature. These tables are commonly used in Geographic Information Systems (GIS) to describe spatial data, allowing users to analyze and understand the attributes of different geographic features.

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  • 18. 

    Which tool allows the most control over the buffer process?

    • Map Buffer

    • Analysis Tool

    • Buffer Wizard

    • Proximity Manager

    Correct Answer
    A. Buffer Wizard
    Explanation
    The Buffer Wizard tool allows the most control over the buffer process. This tool provides users with a variety of options and settings to customize the buffer creation. Users can specify the buffer distance, unit of measurement, buffer type (such as inside or outside), and even dissolve overlapping buffers. With these customizable features, the Buffer Wizard tool gives users the ability to have precise control over the buffer process.

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  • 19. 

    The ratio of the size of drawn objects compared to their actual counterparts is called

    • Scale

    • Size ratio

    • Representation

    • Engineering comparison

    Correct Answer
    A. Scale
    Explanation
    Scale refers to the ratio of the size of drawn objects compared to their actual counterparts. It is a measurement that allows for accurate representation and comparison of objects in a smaller or larger size. Scale is commonly used in various fields such as architecture, engineering, and design to create accurate and proportional representations of objects or structures.

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  • 20. 

    Which engineering discipline is concerned with the circulation of liquids or gases, such as water or air?

    • Civil

    • Electrical

    • Structural

    • Mechanical

    Correct Answer
    A. Mechanical
    Explanation
    Mechanical engineering is concerned with the circulation of liquids or gases, such as water or air. This discipline focuses on designing, analyzing, and maintaining systems that involve the movement of fluids, including pumps, pipelines, and ventilation systems. Mechanical engineers apply principles of fluid mechanics to optimize the flow of liquids or gases in various applications, such as HVAC systems, power plants, and transportation vehicles. They also ensure the efficient transfer of heat and energy in these systems.

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  • 21. 

    Which test compares the level of material settled at the bottom of a water-filled jar?

    • Feel

    • Odor

    • Wet shaking

    • Sedimentation

    Correct Answer
    A. Sedimentation
    Explanation
    Sedimentation is the process of particles settling at the bottom of a liquid due to gravity. In this test, a water-filled jar is used to observe the level of material that settles over time. By comparing the amount of settled material, one can determine the presence or concentration of solid particles in the liquid. This test is commonly used in various fields such as environmental monitoring, water treatment, and geological studies.

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  • 22. 

    Who is currently the primary source for construction document creation, storage, and maintenance at an installation?

    • Operations

    • Contracting

    • Engineering

    • Force Support

    Correct Answer
    A. Engineering
    Explanation
    Engineering is currently the primary source for construction document creation, storage, and maintenance at an installation. This is because engineering departments are responsible for designing and overseeing construction projects. They create detailed construction documents, such as blueprints and specifications, which are essential for the construction process. Engineering also ensures that these documents are stored and maintained properly to facilitate future reference and maintenance. Operations, contracting, and force support may play supporting roles in the construction process, but engineering is the main authority in this area.

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  • 23. 

    Which file extension is the suffix for a Revit template file?

    • .rte

    • .jpg

    • .exe

    • .dwg

    Correct Answer
    A. .rte
    Explanation
    The correct answer is .rte. This file extension is the suffix for a Revit template file. Revit is a software used for building information modeling (BIM) and .rte files are used as templates in Revit to create new projects.

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  • 24. 

    What code is defined as a grouping of equipment and personnel capable of carrying out a specific function?

    • Unit type code

    • Work unit code

    • Purpose identifier code

    • Aircraft maintenance status code

    Correct Answer
    A. Unit type code
    Explanation
    A unit type code is defined as a grouping of equipment and personnel capable of carrying out a specific function. This code is used to categorize and identify different units within an organization or system. It helps in organizing and managing resources efficiently by grouping them based on their capabilities and functions.

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  • 25. 

    Why is parking aircraft fighters at 45-degree angles an efficient way to achieve safety?

    • Improves pilot visibility

    • Provides jet blast clearance

    • Fits more aircraft on the apron

    • Increases room for vehicles on apron

    Correct Answer
    A. Provides jet blast clearance
    Explanation
    Parking aircraft fighters at 45-degree angles provides jet blast clearance. Jet blast refers to the powerful airflow generated by the engines of an aircraft during takeoff or landing. Parking the fighters at an angle helps to direct the jet blast away from other parked aircraft, reducing the risk of damage or accidents. This safety measure ensures that the forceful airflow does not cause any harm to nearby planes or personnel on the apron.

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  • 26. 

    When a munition penetrates the surface of the pavement and detonates underground, leaving a void, what is it called?

    • Spall

    • Crater

    • Bomblet

    • Camouflet

    Correct Answer
    A. Camouflet
    Explanation
    When a munition penetrates the surface of the pavement and detonates underground, leaving a void, it is called a camouflet. A camouflet is a type of explosion that occurs underground, typically caused by the detonation of an explosive device. This explosion creates a void or cavity in the ground, which can cause damage to structures or infrastructure above the detonation site. The other options listed, spall, crater, and bomblet, do not specifically refer to this type of explosion or the resulting void.

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  • 27. 

    How many years are temporary monument markers expected to last?

    • One

    • Two

    • Three

    • Four

    Correct Answer
    A. Two
    Explanation
    Temporary monument markers are expected to last for two years. This means that after the markers are placed, they are designed to remain in place for a period of two years before they are removed or replaced. This timeframe allows for the markers to fulfill their purpose of temporarily marking a monument or location, while still being able to be updated or changed if necessary.

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  • 28. 

    Which two files do we need to post-process the survey data for a Static survey?

    • Receiver’s .TT2 and controller’s .tt2

    • Receiver’s .dat and the controller’s .dat

    • Receiver’s .T02 and the controller’s .t02

    • Receiver’s .T02 and the controller’s .job

    Correct Answer
    A. Receiver’s .T02 and the controller’s .t02
    Explanation
    To post-process the survey data for a Static survey, we need the Receiver's .T02 file and the controller's .t02 file. These files contain the necessary data and information for the post-processing process. The .T02 file from the receiver contains the raw survey data, while the .t02 file from the controller contains the control points and other relevant information needed for the post-processing analysis.

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  • 29. 

    The response e-mail from the Online Positioning User Service (OPUS) has a lot of information; what information are we looking for to adjust our survey data?

    • Elevation Height

    • Orthogonal Height

    • State Plane Coordinates

    • Northing (Y) and Easting (X)

    Correct Answer
    A. Northing (Y) and Easting (X)
    Explanation
    The response email from the Online Positioning User Service (OPUS) provides various information, but the specific information we are looking for to adjust our survey data is the Northing (Y) and Easting (X) coordinates. These coordinates are essential for accurately positioning and aligning the survey data in relation to the reference point or grid system. By adjusting the survey data using these coordinates, we can ensure that the data is correctly aligned and integrated with other geospatial information.

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  • 30. 

    Contours generated from a grid pattern are closer to reality if they have a

    • Lower elevation

    • Higher elevation

    • Lower resolution

    • Higher resolution

    Correct Answer
    A. Higher resolution
    Explanation
    Contours generated from a grid pattern are closer to reality if they have a higher resolution. Higher resolution means that there are more data points or smaller intervals between the points, resulting in a more detailed representation of the terrain. This allows for a more accurate depiction of the elevation changes and features in the area, making the contours closer to the actual topography. On the other hand, lower resolution contours would have fewer data points or larger intervals, leading to a less precise representation of the terrain and potentially distorting the true elevation.

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  • 31. 

    When creating a surface, into which shape does the software group the points?

    • Circle

    • Triangle

    • Hexagon

    • Rectangle

    Correct Answer
    A. Triangle
    Explanation
    When creating a surface, the software groups the points into a triangle shape. This is a common approach in computer graphics and 3D modeling, where triangles are used to approximate more complex shapes. Triangles are preferred because they are simple and versatile, allowing for efficient rendering and calculations. By grouping the points into triangles, the software can create a smooth and realistic surface.

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  • 32. 

    Which equation do we use to check if our batter boards are square?

    • A = l * w.

    • A2 + b2 = c2

    • B2 - 4ac

    • Tan = sin / cos

    Correct Answer
    A. A2 + b2 = c2
    Explanation
    The equation a2 + b2 = c2 is the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the other two sides (a and b). By using this equation, we can check if our batter boards are square by measuring the lengths of the sides and ensuring that they satisfy the Pythagorean theorem.

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  • 33. 

    To make it easier for the equipment operators, grade stakes are marked to the nearest

    • Meter

    • Tenth of a foot

    • Half or whole foot

    • Quarter or half foot

    Correct Answer
    A. Half or whole foot
    Explanation
    Grade stakes are marked to the nearest half or whole foot to provide clear and easily understandable measurements for equipment operators. This allows them to accurately determine the elevation and slope of the land they are working on. Using smaller increments such as a quarter or tenth of a foot may introduce unnecessary complexity and make it more difficult for operators to interpret and follow the markings. By using larger increments, operators can quickly and efficiently determine the desired grade and make the necessary adjustments.

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  • 34. 

    What is a beneficial characteristic of the 3–4–5 triangle layout?

    • No need for a baseline

    • More precise than a total station

    • Grade of the terrain is not important

    • Proportions can be scaled up or down

    Correct Answer
    A. Proportions can be scaled up or down
    Explanation
    The 3-4-5 triangle layout is beneficial because proportions can be scaled up or down. This means that the measurements of the triangle can be multiplied or divided by a constant factor to create larger or smaller triangles with the same proportions. This allows for easy and accurate scaling of measurements when working on different-sized projects or when using different units of measurement.

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  • 35. 

    According to figure 1–21, what tab, under the Data Frame Properties, allows us to choose a coordinate system for the map?

    • Grids

    • Data frame

    • Size and position

    • Coordinate system

    Correct Answer
    A. Coordinate system
    Explanation
    The correct answer is "Coordinate system". According to figure 1-21, there is a tab under the Data Frame Properties that allows us to choose a coordinate system for the map. This tab is likely labeled as "Coordinate system". By selecting this tab, we can specify the coordinate system that will be used for the map, which is important for accurately representing and analyzing spatial data.

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  • 36. 

    When does a construction inspector begin recording construction progress data?

    • During design review

    • As soon as project awards

    • At request of using agency

    • Before pre-construction meeting

    Correct Answer
    A. As soon as project awards
    Explanation
    As soon as the project is awarded, the construction inspector begins recording construction progress data. This is because once the project is awarded, it signifies the start of the construction phase. The construction inspector needs to document and track the progress of the construction activities from the very beginning to ensure that the project is being executed according to the plans and specifications. By recording progress data as soon as the project awards, the construction inspector can establish a baseline and monitor the progress throughout the construction process.

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  • 37. 

    Which specifications format does the Department of Defense (DOD) use instead of the Construction Specifications Institute (CSI) MasterFormat?

    • Federal Construction Guide (FCG)

    • Military Construction Specifications (MCS)

    • Defense Master Specifications Guide (DMSG)

    • Unified Facilities Guide Specifications (UFGS)

    Correct Answer
    A. Unified Facilities Guide Specifications (UFGS)
    Explanation
    The Department of Defense (DOD) uses the Unified Facilities Guide Specifications (UFGS) format instead of the Construction Specifications Institute (CSI) MasterFormat. UFGS is a standardized system of specifications used by the DOD for the design, construction, and maintenance of facilities. It provides detailed information and requirements for various aspects of construction projects, including materials, methods, and quality control. This format ensures consistency and uniformity in specifications across different DOD projects, making it easier for contractors and suppliers to understand and comply with the requirements.

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  • 38. 

    What quality of gradation is a soil with a good range of all particle sizes between the largest and smallest for that sample?

    • Gap

    • Well

    • Open

    • Poorly

    Correct Answer
    A. Well
    Explanation
    A soil with a good range of all particle sizes between the largest and smallest for that sample is considered to have a "well" gradation. This means that the soil has a balanced distribution of particles, ranging from large to small, which allows for good drainage and stability. A well-graded soil is desirable for construction purposes as it provides good compaction and reduces the risk of soil erosion.

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  • 39. 

    Which name do we refer to soils passing the number 200 sieve?

    • Fines

    • Clays

    • Sands

    • Gravels

    Correct Answer
    A. Fines
    Explanation
    Fines refer to soils that pass through the number 200 sieve. This means that the soil particles are smaller than 0.075 mm in size. Fines are typically composed of clay, silt, or a combination of both. They have a high plasticity and can retain water and nutrients, making them important for soil fertility. Fines also contribute to the cohesion and strength of soils, which is important in construction and engineering applications.

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  • 40. 

    Which of these is NOT an element of an asphalt mix?

    • Fines

    • Water

    • Rocks

    • Binder

    Correct Answer
    A. Water
    Explanation
    Water is not an element of an asphalt mix. Asphalt mix is primarily composed of fines (small particles), rocks (aggregates), and binder (usually bitumen). Water is not typically included in the mix as it can negatively affect the performance and durability of the asphalt. Water can cause the asphalt to become weak and prone to cracking, so it is important to ensure that the mix is free from water during the construction process.

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  • 41. 

    In a non-dispersed layout, how many feet is the distance between buildings in a row?

    • 4

    • 6

    • 8.

    • 12

    Correct Answer
    A. 12
    Explanation
    In a non-dispersed layout, the distance between buildings in a row is 12 feet.

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  • 42. 

    Which of these is NOT a part of the basic equipment an air damage assessment team (ADAT) needs?

    • Vehicle

    • Lensatic compass

    • Way to record damage

    • Way to communicate with emergency operations center (EOC)

    Correct Answer
    A. Lensatic compass
    Explanation
    A lensatic compass is not a part of the basic equipment needed by an air damage assessment team (ADAT). ADATs are responsible for assessing the damage caused by air disasters and require essential equipment such as a vehicle to travel to the affected area, a way to record the damage they observe, and a way to communicate with the emergency operations center (EOC) to provide real-time updates. However, a lensatic compass, which is a more specialized type of compass used for precise navigation, is not necessary for their assessment tasks.

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  • 43. 

    Because the repair slope matches the runway slope, how are the crater profile measurement (CPM) test lanes related to the runway centerline?

    • Parallel

    • 45 degrees

    • Perpendicular

    • Measured from the shoulder

    Correct Answer
    A. Parallel
    Explanation
    The crater profile measurement (CPM) test lanes are related to the runway centerline in a parallel manner. This means that the CPM test lanes run alongside the runway centerline, maintaining the same distance and direction. This parallel alignment allows for accurate measurement and comparison of the crater profiles to the runway surface, ensuring that any necessary repairs can be made to match the slope of the runway.

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  • 44. 

    To ensure the 3–4–5 triangle process is efficient, you should have a single

    • Layout team

    • Tape measure

    • Group of tents

    • Person in charge

    Correct Answer
    A. Person in charge
    Explanation
    To ensure the 3-4-5 triangle process is efficient, having a person in charge is necessary. This person will be responsible for coordinating and overseeing the layout team, tape measure, and group of tents. They will ensure that the measurements are accurate and that the layout team follows the 3-4-5 triangle process correctly. Having a designated person in charge helps to streamline the process and avoid any confusion or errors that may arise if there is no clear leadership or coordination.

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  • 45. 

    The import wizard for extensible markup language (XML) files has three windows; which window lists name conflicts?

    • Page 1

    • Page 2

    • Page 3

    • Summary page

    Correct Answer
    A. Page 2
    Explanation
    The import wizard for XML files has three windows: Page 1, Page 2, and Summary page. The question asks which window lists name conflicts. Since name conflicts usually occur when importing files, it is logical to assume that the window where these conflicts are listed would be Page 2.

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  • 46. 

    By what name do we refer to the space between any points A and B?

    • Angle

    • Point line

    • Line segment

    • Perpendicular line

    Correct Answer
    A. Line segment
    Explanation
    A line segment refers to the space between two points A and B. It is a part of a line that has two endpoints, which are A and B in this case. Unlike a line, which extends infinitely in both directions, a line segment has a definite length and can be measured. Therefore, the correct answer is line segment.

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  • 47. 

    When sieve sizes have openings smaller than 1/4 inch, how are they identified?

    • Gauge of wire

    • Size of opening in inches

    • Total size of sieves in stack

    • Number of openings per inch

    Correct Answer
    A. Number of openings per inch
    Explanation
    When sieve sizes have openings smaller than 1/4 inch, they are identified by the number of openings per inch. This means that the sieve is classified based on the number of openings it has within an inch. For example, a sieve with a higher number of openings per inch would have smaller openings compared to a sieve with a lower number of openings per inch. This method allows for precise identification and classification of sieve sizes with small openings.

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  • 48. 

    What factor has varying effects on the cohesion of soil?

    • Gradation

    • Moisture

    • Sands

    • Heat

    Correct Answer
    A. Moisture
    Explanation
    Moisture has varying effects on the cohesion of soil. When soil is dry, it tends to be loose and less cohesive, making it easier for particles to separate. On the other hand, when soil is wet, the water acts as a binding agent, increasing cohesion and making the soil more compact. The amount of moisture present in the soil directly affects its strength and ability to resist deformation. Therefore, moisture is a key factor that influences the cohesion of soil.

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  • 49. 

    When conducting the shine test, a definite shine indicates what type of clay?

    • Lean

    • Organic

    • Low plasticity

    • Highly plastic

    Correct Answer
    A. Highly plastic
    Explanation
    A definite shine during the shine test indicates that the clay being tested is highly plastic. Plasticity refers to the ability of clay to be easily shaped and molded. Highly plastic clay has a high proportion of fine particles, which allows it to be easily manipulated and hold its shape well. This makes it ideal for pottery and sculpting.

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  • Current Version
  • Jun 24, 2024
    Quiz Edited by
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  • Nov 13, 2019
    Quiz Created by
    Thet

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