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| Section | Objectives |
|---|---|
| Topic 1: Civil Engineering Materials and Construction | - Construction Methods and Techniques - Concrete, Steel, and Asphalt Properties |
| Topic 2: Professional Practice and Ethics | - Engineering Ethics - Legal and Regulatory Responsibilities |
| Topic 3: Structural Engineering Basics | - Structural Analysis Fundamentals - Design Principles and Load Considerations |
| Topic 4: Transportation Engineering | - Roadway Design Basics - Traffic and Pavement Considerations |
| Topic 5: Geotechnical Engineering | - Foundation Design Principles - Soil Mechanics |
| Topic 6: Surveying and CAD Applications | - Land Surveying Principles - Computer-Aided Design (CAD) Usage |
| Topic 7: Engineering Fundamentals | - Mathematics and Applied Calculations - Engineering Principles |
| Topic 8: Hydraulics and Hydrology | - Drainage and Water Management Systems - Fluid Mechanics Fundamentals |
>> Cert Civil-Engineering-Technology Guide <<
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NEW QUESTION # 78
The road cross sections shown have chainage (CH) 1+100 and 1+200. What is the volume of sub-grade material if an averaging method is applied?
Answer: B
Explanation:
The averaging method for earthworks between two stations is theAverage End Areamethod:
whereandare the end areas at the two cross sections andis the station spacing. Here, CH 1+100 to 1+200 givesm. From the cross-section labels in the figure, the two sub-grade areas sum to4.26 m²(e.g., approximately 1.31 m² and 2.95 m²), so the average area ism². Multiply by length:m³. This is the standard approach used for roadway cut/fill and subgrade volume computations between surveyed sections.
NEW QUESTION # 79
Which of the following tests are required as part of soil grain size analysis?
Answer: A
Explanation:
Soilgrain size analysisdetermines the particle-size distribution across coarse and fine fractions. Coarse particles (sand and gravel) are sized bysieve analysis, where the sample is passed through a stack of sieves and the mass retained on each sieve is measured to build the gradation curve. Fine particles (silt and clay) are too small for practical sieving and are therefore sized usingsedimentation methods, most commonly the hydrometer test, which infers particle sizes from settling velocity in a suspension. This combined approach (sieve for coarse, hydrometer for fines) is standard in civil geotechnical testing programs because it produces a continuous particle-size distribution needed for soil classification and engineering assessment. Atterberg limits (LL/PL) areconsistency/plasticitytests for fine-grained soils-not grain size tests-so they are not the required fine-fraction method for grain-size analysis. Therefore, the correct combination for grain size analysis issieve analysis for coarse grains and hydrometer test for fine grains.
NEW QUESTION # 80
Whatto determine the compressive strength of concrete?
Answer: B
Explanation:
Concrete compressive strength is determined by loading astandard specimen(commonly a cylinder) in axial compression until failure and calculating strength as themaximum load divided by the specimen's cross- sectional area. This is the core acceptance/quality-control measure used to verify that concrete meets the specified design strength in contract documents. Civil engineering materials references describe that compressive strength (f'c) is measured from the maximum load at failure and that standardized procedures (e.
g., ASTM C31 for making/curing and ASTM C39 for testing) are used to ensure consistency and reduce testing error.
Laboratory/field experiment procedures similarly definngth test as a compression machine test on a concrete cylinder, with load increased to failure and strength computed from the peak load and cylinder area.
Slump testing measures workability/consistency, air tesed air, and sieve testing relates to aggregate gradation-none provide compressive strength. Hence, the correct test is thecylinder test.
NEW QUESTION # 81
Which are five different types of driver maneuvers a technologist must consider when designing an at-grade intersection?
Answer: D
Explanation:
At-grade intersection design is governed by how vehicle paths interact-i.e., the fundamentalconflict types and maneuver classes that must be accommodated by geometry, channelization, and traffic control. AASHTO' s intersection chapter explicitly categorizes vehicular conflict points and illustrates them using the maneuver typesdiverging, merging, and crossing, and it addresses how turning movements create and interact with these conflicts within the functional area of intersections.
In addition, AASHTO describesweavingas the condition where one-way traffic streams cross bymerging and divergingmaneuvers-another key operational behavior that affects design and level of service.
Putting these together, the five maneuvers a technologist must consider in intersection design arediverging, merging, weaving, crossing, and turning, which corresponds exactly toOption B.
NEW QUESTION # 82
Which of the following can a civil engineering technologist request from a concrete supplier to verify that concrete falls within municipal specifications?
Answer: D
Explanation:
For ready-mixed concrete deliveries, compliance verification is commonly supported by thedelivery/batch ticket(often called the concrete delivery ticket). Industry guidance tied to ASTM C94 emphasizes that the ticket includes critical batch information (such as batch time and related data) used to confirm compliance with specified requirements and limits (including time limits for discharge and other production/traceability details). Because municipal specifications typically require confirmation of the delivered mix identification, quantities, admixtures, batching time, and other relevant production details, the batch/delivery ticket is the most direct document a technologist can request at the site to verify the delivered concrete aligns with the specified mix and placement requirements. A mix design submittal can show intended proportions but does not prove what was actually batched and delivered for that load; "batch location" alone is not sufficient;
"geotechnical mix design" is not applicable. Therefore, the correct item is thebatch ticket from the plant.
NEW QUESTION # 83
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