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Question 1
A soil profile consists of a 3 m thick upper layer of dry sand above a saturated sand layer. The total unit weight above the groundwater table is 18 kN/m³ and the saturated unit weight below is 20 kN/m³. The groundwater table is located at 3 m depth. What is the vertical effective stress at a depth of 8 m?
Correct Answer:
104.95 kPa
Question 2
According to the Mohr-Coulomb failure criterion, what is the effective shear strength τ_f of a soil with effective cohesion c' = 12 kPa, effective friction angle ϕ' = 32°, total stress σ = 180 kPa, and pore water pressure u = 50 kPa?
Correct Answer:
93.23 kPa
Question 3
Under Geoguide 3 (Guide to Soil and Rock Description), how is Grade III rock material classified within the rock weathering classification scheme for Hong Kong rocks?
Correct Answer:
Moderately Weathered Rock, where discoloration indicates weathering of rock material and along joints, but less than half of the rock material is decomposed or disintegrated.
Question 4
A 6.0 m thick normally consolidated clay layer has an initial void ratio e_0 = 0.90, compression index C_c = 0.30, and initial vertical effective stress σ'_{v0} = 100 kPa. An foundation loading induces a vertical stress increment Δσ' = 100 kPa at the mid-depth of the layer. What is the ultimate 1D primary consolidation settlement ΔH of the clay layer?
Correct Answer:
285.2 mm
Question 5
A 4.0 m thick marine clay layer with double drainage has a coefficient of consolidation c_v = 2.5 m²/year. For 90% degree of consolidation, the time factor is T_90 = 0.848. How long (in years) will it take for the clay layer to reach 90% consolidation?
Correct Answer:
1.36 years
Question 1
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About this Exam

Prepare with the HKIE Professional Assessment - Geotechnical Discipline Practice Questions - HKIE Professional Assessment - Geotechnical Discipline (Hong Kong Institution of Engineers) Exam practice quiz. This question bank includes 100 questions covering hong, kong, soil, slope, and pile. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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HKIE Professional Assessment - Geotechnical Discipline Practice Questions - HKIE Professional Assessment - Geotechnical Discipline (Hong Kong Institution of Engineers) Exam

This practice set contains 100 questions from the matching question bank and focuses on hong, kong, soil, slope, and pile. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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