Question 1

Please introduce yourself, your civil engineering education, professional certifications, and why you chose this career.

Accepted Answer

Education -> Professional certifications (Decree 15/2021) -> Notable experience (project type, scale) -> Motivation and career goals. Keep 2-3 minutes. Mention professional certifications. Highlight project types you specialize in. End with specific professional development goals.

Question 2

Tell me about the largest or most complex construction project you have been involved in. What was your role and contribution?

Accepted Answer

Project description (type, scale, investment) -> Role (design, supervision, construction) -> Technical challenges -> Solutions -> Results -> Lessons. Use specific numbers: floor area, stories, investment, duration. Emphasize what you directly handled. Connect experience to the position requirements.

Question 3

Describe your construction supervision process and how you ensure quality per design drawings and TCVN standards.

Accepted Answer

Supervision scope -> Inspection by phase (formwork, reinforcement, concrete) -> TCVN applied (4453, 9394) -> Handling deviations -> Acceptance records, construction diary. Cite TCVN 4453:2025 (concrete), TCVN 1651:2018 (reinforcement steel). Give real examples of detected errors. Emphasize construction diary and acceptance records.

Question 4

Describe the structural calculation process for an RC high-rise. Which TCVN standards do you apply for structural design and loads?

Accepted Answer

Collect data (geology, architecture) -> Loads per TCVN 2737:2023 -> Modeling (ETABS/SAP2000) -> Analysis per TCVN 5574:2018 -> Detailed reinforcement design -> Design drawings. Must know TCVN 2737:2023 (loads), TCVN 5574:2018 (RC structures), TCVN 9386:2012 (seismic). Present logical flow from input data to design output.

Question 5

When geological survey shows weak soil, what foundation solutions would you propose? Compare pile foundation options per TCVN 10304:2025.

Accepted Answer

Evaluate survey results (SPT, CPT) -> Ground improvement (preloading, sand drains, PVD, soil-cement) -> Pile options (driven, bored, barrette) -> Compare per TCVN 10304:2025. TCVN 10304:2025 was recently updated. Give real examples of weak soil projects. State selection criteria: loads, geology, site conditions, budget.

Question 6

Describe main fire protection requirements in structural design per QCVN 06:2022/BXD. How are fire safety distances regulated?

Accepted Answer

QCVN 06:2022/BXD: building classification -> Fire resistance ratings (I-V) -> Safety distances (Table 4.1) -> Evacuation, staircases -> Fire-resistant structural solutions. QCVN 06:2022/BXD is mandatory. Specify minimum fire resistance ratings by building type, concrete cover thickness for fire resistance.

Question 7

You discover large cracks on an RC beam after formwork removal. How would you handle this? Classify causes and propose remediation.

Accepted Answer

Initial assessment (width, location) -> Classify crack (shrinkage, load, construction error) -> Root cause -> Solutions (epoxy, FRP, steel reinforcement) -> Incident documentation. Distinguish dangerous cracks (> 0.3mm per TCVN 5574) from acceptable. Present systematic handling: stop work, isolate, assess, sample if needed.

Question 8

A building under construction shows differential settlement exceeding limits. How would you analyze the cause and propose remediation?

Accepted Answer

Collect settlement data -> Analyze causes (groundwater, load exceeding design, survey inaccuracy) -> Assess structural impact -> Solutions (supplementary piles, micropiles, grouting) -> Post-treatment monitoring. Differential settlement is serious. State limits per TCVN 9362:2012. Show multi-party coordination ability: structural, geotechnical, supervision consultant.

Question 9

The MEP subcontractor requests changing service penetrations through structural beams, but concrete pouring is imminent. How would you handle this?

Accepted Answer

Evaluate request (structural impact?) -> Check shop drawings/BIM -> Coordinate with structural engineer -> Solutions (reinforce, sleeve, reroute) -> Design change documentation. Structural-MEP clashes are very common on site. Principle: never cut beams without structural engineer approval. Mention BIM for early clash detection.

Question 10

You discover workers not complying with safety rules on site (no hard hats, no harnesses at height). How would you handle this?

Accepted Answer

Stop unsafe work immediately -> Document violation (Decree 39/2016) -> Toolbox meeting -> Review procedures -> Coordinate with safety officer. Cite Occupational Safety Law 2015 and QCVN 18:2021/BXD. Show firm but educational approach, not just punitive.

Question 11

Describe the structural modeling process for a high-rise in ETABS. What are common mistakes to avoid?

Accepted Answer

Setup (grid, story, materials, sections) -> Modeling (slabs, beams, columns, walls) -> Loads (TCVN 2737, 9386) -> Boundary conditions -> Load combinations -> Result verification. Common mistakes: forgetting rigid diaphragm, wrong units, insufficient slab meshing, incomplete load combinations. Compare ETABS vs SAP2000.

Question 12

Have you used Revit Structure or BIM workflows? Describe how you coordinated structural models with architecture and MEP.

Accepted Answer

BIM project -> Workflow (central model, worksets, linked models) -> Multi-discipline coordination (Clash Detection, Navisworks) -> Drawing production, BOQ -> BIM challenges in VN. BIM is becoming mandatory per Ministry of Construction BIM guidelines (Decision 348/QD-BXD, April 2021). Discuss practical challenges: lack of Vietnam family libraries, staff unfamiliar with BIM.

Question 13

Estimate approximate concrete and reinforcement quantities for a 10-story residential building, 500m2/floor, RC frame. What methods and coefficients?

Accepted Answer

Estimate concrete (~0.4-0.6 m3/m2 slab) -> Steel coefficient (~80-120 kg/m3 concrete) -> Breakdown by element -> Account for waste. Know industry coefficients: beam steel ~100-150 kg/m3, columns ~200-250 kg/m3, slabs ~60-80 kg/m3. Use BOQ for cost control.

Question 14

Vietnam's construction industry is transforming with BIM, green tech, and AI. What motivates you to continue growing?

Accepted Answer

Personal motivation -> Industry trends (BIM, prefab, green buildings) -> Development plan (PMP, BIM Manager) -> Align with company vision. Vietnam 2026 salary: fresh graduates 8-12M, 3-5 years 15-25M, senior 25-45M. Follow trends: LOTUS green building, modular/prefab.

Question 15

What is your expected salary? What factors beyond base salary do you consider?

Accepted Answer

Research market salary -> Provide range -> Non-salary factors (site allowances, insurance, project bonuses) -> Industry-specific: remote site allowance. Vietnam Civil Engineer salary (gross, Aug 2026): Fresher 8-15M, Junior 12-22M, Mid 15-35M, Senior 25-50M, PM 40-80M. Site allowances 20-40%. (Data as of Aug 2026. Verify latest)

Question 16

Do you have any questions about the company, upcoming projects, or work environment?

Accepted Answer

Ask 2-3 questions: (1) Current project types and scale? (2) Engineering department structure? (3) BIM/new tech roadmap? Asking about specific projects shows company research. Ask about BIM workflows or ISO standards followed.