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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Civil Engineering Fundamentals | 25% | - Engineering Mathematics & Applied Science
|
| Topic 2: Structural Engineering | 20% | - Structural Analysis & Design
|
| Topic 3: Transportation Engineering | 15% | - Highway & Road Design
|
| Topic 4: Construction Management & Materials | 10% | - Construction Methods & Project Management
|
| Topic 5: Water Resources & Environmental Engineering | 12% | - Hydrology & Water Systems
|
| Topic 6: Geotechnical Engineering | 18% | - Soil Mechanics & Foundation Engineering
|
>> Civil-Engineering-Technology Latest Practice Questions <<
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NEW QUESTION # 87
Which soil test identifies the minimum water content at which the soil begins to crumble?
Answer: C
Explanation:
The Atterberg litent boundaries between consistency states of fine-grained soils. Theplastic limit (PL)is the water content at the boundary between theplasticandsemi-solidstates-below this moisture condition, the soil can no longer be rolled/deformed withoutcrumbling, indicating it has transitioned out of the plastic range.
Civil engineering references define PL explicitly as the water content corresponding to the transition between the semi-solid and plastic state (i.e., the lower boundary of plastic behavior). Similarly, soils testing references define PL as the boundary between plastic and semi-solid states (with liquid limit defining plastic-to-liquid boundary).
NEW QUESTION # 88
What does a system curve illustrate?
Answer: D
Explanation:
Comprehensive and Detailed 150 to 200 words of Engineering documents and resources:
In pumped/pressurized pipe systems, thesystem curverepresents the hydraulic requirement of the piping network: the relationship betweenflow rate (Q)and thehead requiredto overcome elevation differences and losses. As flow increases, friction and minor losses rise (often approximately with Q² in turbulent flow regimes), so the system's required head increases with Q. This curve is used with a pump curve to find the operating point where pump head equals system head at a given flow. Standard civil engineering hydraulics references define head loss as a function of flow through friction and fittings, and system behavior is expressed by total head (static + losses) versus flow, which is exactly what the system curve shows.
Therefore, the system curve illustratestotal head loss (and required head) in the pipe system as a function of total flow, matching optionC.
NEW QUESTION # 89
A subcontractor is completing surface rehabilitation in a mature community. What are the minimum requirements for quality that must be met?
Answer: C
Explanation:
In municipal surface rehabilitation, the governing minimum quality requirements are set by themunicipality's standards/specifications, because the work interfaces with, affects, and is often handed over to municipal infrastructure (roads, sidewalks, utilities, drainage). Municipal specifications define accepted materials, compaction/density requirements, asphalt/concrete placement tolerances, testing frequency, restoration details, and acceptance criteria. Contractor or subcontractor internal specs may exceed municipal requirements, and warranties/insurance address risk allocation, but they do not replace theowner/authority's technical acceptance standards. In civil engineering practice, "specifications" are the formal technical requirements that the delivered system must meet (minimum/maximum/range), including items like minimum density of roadbed, tolerances, and material performance-these are typically established by the owning agency (here, the municipality) for public infrastructure assets. Thus, the minimum quality threshold is defined by themunicipality specifications.
NEW QUESTION # 90
What substance is used to calibrate a concrete air pressure meter?
Answer: B
Explanation:
A pressure air meter (used to measure air content of fresh concrete) must be calibrated by verifying thevolume of the measuring bowl and theaccuracy of the graduated neck/markings. This is done usingwaterbecause water volume can be measured accurately and used to check the meter's indicated graduations (air content scale) by filling the assembled unit to known levels. InExperiment Design for Civil Engineering, the calibration procedure directs filling the assembled air meterwith waterto the highest graduation mark and adding water in known increments to verify that the graduations are accurate throughout the range. The same source references using water to establish the mass/density) and to check calibration cups and neck readings.
Therefore, the substance used to calibrate the air pres*, makingOption Bcorrect.
NEW QUESTION # 91
A civil engineering technologist is designing a sanitary collection system that is being constructed below the groundwater table. The owner requested that the system be pressure tested in order to minimize the infiltration into the collection system. Which of the following would be a major design consideration for the collection system?
Answer: D
Explanation:
When sanitary infrastructure is installedbelow the groundwater table, a primary risk isinfiltration- groundwater entering the system through joints, defects, and especiallyappurtenances. Even if pipe joints are specified as watertight and pipes can pass leakage testing, manholes are frequent infiltration pathways due to multiple penetrations (service connections), interfaces (frame-to-cone), and exposure to groundwater head.
Civil engineering references identify infiltration/inflow sources that include "holes in manhole covers" and other manhole-related entry paths, highlighting that manholes are critical control points in sanitary systems.
Therefore, a major design consideration-particularly whessure/leakage testing to reduce infiltration-is specifying awatertight manhole type(e.g., gasketed/booted connections, sealed sections, appropriate access components) suitable for submerged conditions. Pipe diameter primarily affects hydraulic capacity, and
"manhole material" alone does not fully address leakage performance unless paired with watertight design features. The best answer ismanhole type.
NEW QUESTION # 92
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