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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Transportation Engineering | 20% | - Traffic engineering
|
| Topic 2: Municipal Engineering | 20% | - Wastewater and stormwater management
|
| Topic 3: Surveying | 20% | - Surveying equipment and methods
|
| Topic 4: Structural Design Fundamentals | 20% | - Structural analysis
|
| Topic 5: Materials Testing | 20% | - Soil mechanics and testing
|
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NEW QUESTION # 43
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 # 44
Which of the following tests are required as part of soil grain size analysis?
Answer: D
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 # 45
A civil engineering technologist is to inspect control joint saw-cuts on a newly poured concrete slab. What saw cut depth would be typically specified?
Answer: A
Explanation:
Control joints (contraction joints) are intended to create aplane of weaknessso shrinkage cracking forms at the joint rather than randomly. For saw-cut control joints, typical practice is to cut deep enough to be effective but not so deep that it compromises slab capacity or cuts reinforcement. Civil engineering materials references describe contraction/control joints as used to control cracking and indicate that the joint must form an intentional weakened section. A common "rule of thumb" for saw-cut depth is approximatelyone-quarter of the slab thicknessfor conventional slabs-on-grade (deeper cuts may be specified for thicker slabs or special conditions, but 1/4 is the typical baseline). This depth is generally sufficient to initiate cracking at the joint line while preserving structural integrity of the slab. Therefore, the typical specified saw cut depth is1/4 of the total slab depth.
NEW QUESTION # 46
A civil engineering technologist is providing culvert location staking in the field for a project. What information is placed on the survey stakes?
Answer: B
Explanation:
Construction staking is intended to communicatelocationandgradeto the crew in a form they can build from.
For pipe and culvert work, the controlling grade is theinvert(flow line), because pipe installation, bedding, and hydraulic performance are governed by the invert elevations at key points (typically inlet/outlet ends and along stationing). Standard staking practice records theoffset distancefrom a control line/centerline and the vertical informationneeded to establish the required grade at the feature being built. Civil surveying references describe that stake markings commonly include distances from control (left/right offsets) and elevation/grade relationships to the feature staked. For culvert/pipeline staking specifically, invert elevations are a primary requirement so that the installed pipe meets design slope and elevation. Therefore, the appropriate stake information is theculvert invert elevationsalong with theoffset to the end of the culvert, enabling accurate placement without occupying the excavation line.
NEW QUESTION # 47
An engineered wooden "I" floor joist has a hole that was cut at the bearing location. What is the best way to verify that the structural integrity of the joist has not been compromised?
Answer: B
Explanation:
Engineered I-joists are proprietary structural products with capacity and allowable hole/notch limits governed by themanufacturer's engineeringand publishedspecifier guides/repair details. A hole at or near a bearing is particularly critical because shear demands and web stresses are highest near supports, and manufacturers explicitly restrict hole proximity to bearings and provide specific repair details when holes occur in sensitive zones. For example, Weyerhaeuser's TJI repair technical bulletin states conditions for repair applicability and includes "DO NOT" limitations related to holes overlapping the inside face of bearing and other proximity restrictions, indicating that manufacturer guidance controls whether a joist is acceptable and how it must be repaired. Industry good-practice guidance similarly emphasizes that manufacturer instructions must be followed and holes should not be over supports/bearings without approval and prescribed reinforcement.
Therefore, the best way to verify integrity is tocontact the manufacturer(or their engineering support) and follow their published repair/acceptance requirements.
NEW QUESTION # 48
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