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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Transportation Engineering | 20% | - Traffic engineering
|
| Topic 2: Surveying | 20% | - Measurement and calculation techniques
|
| Topic 3: Municipal Engineering | 20% | - Wastewater and stormwater management
|
| Topic 4: Materials Testing | 20% | - Soil mechanics and testing
|
| Topic 5: Structural Design Fundamentals | 20% | - Design of structural elements
|
>> Exam Civil-Engineering-Technology Answers <<
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NEW QUESTION # 53
For granular material, what is the typical optimum moisture content for dry densities ranging from 2100 kg/m³ to 2200 kg/m³?
Answer: B
Explanation:
Theoptimum moisture content (OMC)is the moisture content at which a soil achievesmaximum dry density for a given compactive effort on the Proctor curve. Granular materials (sands/gravels with low plastic fines) typically requirerelatively low moistureto reach peak density because their structure densifies primarily by particle rearrangement; only a small amount of water is needed to lubricate contacts and aid compaction.
Training/compaction manuals define OMC as the peak of the moisture-density relationship and highlight that coarse-grained materials generally peak at lower moisture than fine-grained soils. A maximum dry density range of about2100-2200 kg/m³(#2.10-2.20 Mg/m³) is consistent with well-compacted granular base
/subbase, which commonly has an OMC in thesingle-digit percentrange. Therefore, the typical OMC range that best matches granular materials at these densities is4-7%.
NEW QUESTION # 54
Which of the following is employee's responsibility in regard to PPE?
Answer: A
Explanation:
Employee responsibilities for PPE typically includeusing PPE as required and checking it is serviceable before use, then reporting defects. Employer responsibilities generally include hazard assessment, selecting
/providing appropriate PPE, ensuring training, and maintaining a program. EM 385-1-1 reflects this division of duties: it requires PPE to be used to control exposures and establishes training requirements covering key aspects of PPE, includinginspection/testingand proper care. Practical safety guidance for workers also states that employees shouldcheck PPE for faults before useand report issues. Among the optionsuployee duty that is broadly applicable across PPE types and aligns with standard safety systems: workers verify their equipment is not damaged, fits correctly, and is suitable for the task before entering the hazard area.
Therefore, the correct answer isA.
NEW QUESTION # 55
Whatto determine the compressive strength of concrete?
Answer: A
NEW QUESTION # 56
The k-value in a vertical curve design defines the horizontal distance required to make a 1% change in the gradient. Provided that the stopping sight distance is the same, the uphill grade is 1%, the downhill grade is #0.
5%, and the design speed is 90 km/h, what is the length of the vertical curve?
Answer: A
Explanation:
For vertical curves, AASHTO uses theK valuedefined as, whereis curve length (m) andis the algebraic difference in grades (percent). Here,and, so. Withstopping sight distance controlled by the same criterion(i.
e., the applicable K value for the given design speed remains the same), length is found from. For 90 km/h, the SSD-based K for the controlling curve type yieldsthat corresponds to60 mforper the provided choices.
This reflects standard vertical-curve practice: once K is set by SSD for the design speed, length scales linearly with the grade difference.
NEW QUESTION # 57
A civil engineering technologist has been asked to check the following foundation plan drawing. How many different sizes of concrete piles are required in this project?
Answer: B
Explanation:
Pile sizing on a foundation plan is determined by thepile schedule/legendand callouts that specify different pile types or diameters (and sometimes lengths/capacities) used in different locations to suit varying loads or subsurface conditions. Reviewing a foundation plan for "how many pile sizes" means identifying the distinct pile designations listed in the schedule (e.g., P1, P2, P3, P4), each corresponding to a different concrete pile size/specification. Engineering drawing practice requires reading the schedule and matching symbols/marks to their definitions to count unique sizes, not simply counting total piles on the plan. In the provided drawing, the pile schedule indicatesfourdistinct pile sizes/designations, so the project requiresfourdifferent sizes of concrete piles.
NEW QUESTION # 58
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