πInterview Questions For Building Construction Engineers
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1. As you are a construction Engineer, Why are building finishes important in construction projects?
They protect structural elements, improve durability, functionality, and enhance aesthetics.
2. What checks are required before starting plastering works?
Surface cleaning, alignment check, proper curing of masonry, service concealment completion, and approval.
3. What is the standard thickness of internal and external plaster?
Internal: 12β15 mm
External: 15β20 mm (often in two coats).
4. What causes cracks in plaster and how are they controlled?
Shrinkage, poor mix, improper curing, and thermal movement; controlled by proper mix, curing, and mesh at junctions.
5. What is the purpose of expansion or control joints in buildings?
To accommodate movement and prevent random cracking.
6. What checks are required before floor screeding?
Surface cleanliness, level marking, correct slope, service completion, and material approval.
7. As you are a construction foreman What is the recommended screed thickness for building floors?
Typically 40β50 mm for bonded screed unless otherwise specified.
8. What are the key quality checks for tiling works?
Tile alignment, joint spacing, level, slope to drain, adhesive coverage, and grout quality.
9. What causes tile debonding or hollow sound?
Poor surface preparation, insufficient adhesive, movement, or moisture ingress.
10. What is waterproofing and where is it critical in buildings?
Protection against water penetration; critical in toilets, kitchens, roofs, basements, and balconies.
π§For more information click this Link Below And Subscribe Our YouTube Channelπ
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp
π·αα’ααα²αα αααα²αΆα½ αα΅α«α αα©αα¨αα΅α² ααα« α¨α°ααα α₯α«α
1. As you are a construction Engineer, Why are building finishes important in construction projects?
They protect structural elements, improve durability, functionality, and enhance aesthetics.
2. What checks are required before starting plastering works?
Surface cleaning, alignment check, proper curing of masonry, service concealment completion, and approval.
3. What is the standard thickness of internal and external plaster?
Internal: 12β15 mm
External: 15β20 mm (often in two coats).
4. What causes cracks in plaster and how are they controlled?
Shrinkage, poor mix, improper curing, and thermal movement; controlled by proper mix, curing, and mesh at junctions.
5. What is the purpose of expansion or control joints in buildings?
To accommodate movement and prevent random cracking.
6. What checks are required before floor screeding?
Surface cleanliness, level marking, correct slope, service completion, and material approval.
7. As you are a construction foreman What is the recommended screed thickness for building floors?
Typically 40β50 mm for bonded screed unless otherwise specified.
8. What are the key quality checks for tiling works?
Tile alignment, joint spacing, level, slope to drain, adhesive coverage, and grout quality.
9. What causes tile debonding or hollow sound?
Poor surface preparation, insufficient adhesive, movement, or moisture ingress.
10. What is waterproofing and where is it critical in buildings?
Protection against water penetration; critical in toilets, kitchens, roofs, basements, and balconies.
π§For more information click this Link Below And Subscribe Our YouTube Channelπ
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp
β€33
3182. In which type of estimate are the length, breadth and depth of each item taken out from drawings, quantities of each item calculated, and abstracting and billing done?
Anonymous Quiz
49%
(a) Detailed estimate
13%
(b) Plinth area rate estimation method
16%
(c) Approximate quantity estimation method
22%
(d) Cubic rate estimation method
π3
3183. A magnetic bearing of a line is 85Β° and the magnetic declination is 3Β°E. What is the true bearing?
Anonymous Quiz
17%
(a) 83Β°
16%
(b) 85Β°
49%
(c) 82Β°
18%
(d) 88Β°
β€1
3180. Why is building plan considered a fundamental part of architectural drawing sets?
Anonymous Quiz
78%
(a) It enables understanding of spatial organisation, wall location, door/window placement.
11%
(b) It visually represents foundation layout only.
7%
(c) It only shows the exterior appearance of the building.
5%
(d) It provides dimension for roof slabs and elevation only.
β€4
π INTERCON Construction Chemicals
β Concrete Admixtures
β Bonding Agents
β Waterproofings
β Wall Putty, Prime Coat
β Concrete Repair Mortar
β Floor hardener, Epoxy
β Grout, Self-level mortar
β Quartz paint, Contextra
β Tile Adhesive & Tile Joint Fillers
β Geotextiles and other construction chemicals and materials
βοΈ Tel: 0961955555
πΉ Address 1: Signal road, around
Dinberwa Hospital
πΉ Addres 2: Wellosefer, Infront of
Dani Plaza
β Concrete Admixtures
β Bonding Agents
β Waterproofings
β Wall Putty, Prime Coat
β Concrete Repair Mortar
β Floor hardener, Epoxy
β Grout, Self-level mortar
β Quartz paint, Contextra
β Tile Adhesive & Tile Joint Fillers
β Geotextiles and other construction chemicals and materials
βοΈ Tel: 0961955555
πΉ Address 1: Signal road, around
Dinberwa Hospital
πΉ Addres 2: Wellosefer, Infront of
Dani Plaza
3178. Which of the following correctly describes a condition of pure bending in a beam?
Anonymous Quiz
23%
(a) Linearly varying bending moment
20%
(b) Zero bending moment throughout the span
21%
(c) Constant shear force and zero bending moment
37%
(d) Constant bending moment and zero shear force
π5
3174. Which of the following types of rocks is commonly used as a strong and durable building material in construction due to its high crushing strength and weather resistance?
Anonymous Quiz
71%
(a) Igneous rocks like granite
15%
(b) Metamorphic rocks like slate
12%
(c) Sedimentary rocks like shale
3%
(d) Sedimentary rocks like breccia
β€4
3177. Which of the following is called an award for reduction in green house emission from the atmosphere by the emission reduction project, which can be used by a government to compensate for the emission they generate elsewhere?
Anonymous Quiz
24%
(a) Carbon market
31%
(b) Carbon footprint
25%
(c) Carbon sequestration
20%
(d) Carbon credit
π3π2
β€13π2π1
πsolutions for damp walls:
π§Incorrect Situation
- Rainwater flows directly onto the wall.
- Causes structural damage and mold growth.
- Lack of proper detailing leads to moisture penetration.
- Wall surface remains exposed to continuous wetting.
π§Correct Situation
- Rainwater is diverted away from the wall.
- Use of metal flashing / drip edge prevents water seepage.
- Upstand/Empend provides a barrier against moisture.
- Roof slab detailing ensures effective protection.
- Results in long-term durability and moisture resistance.
π§ Solution for Damp Walls
Water leakage at roof edges is one of the most common reasons for damp walls, cracks, and mold growth.
π΄ Incorrect Method:
Without proper metal flashing or drip edge, rainwater flows directly over the roof slab and down the wall surface. This leads to seepage, structural damage, and unhealthy mold formation inside the building.
π’ Correct Method:
Providing a proper metal flashing / drip edge (Babeta) at the roof edge redirects rainwater away from the wall. This simple detailing prevents moisture penetration and protects the structure for long-term durability.
β Small detailing = Big protection!
Always ensure proper roof edge treatment to avoid costly repairs in the future.
π§For more information click this Link Below And Subscribe Our YouTube Channelπ
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp
π§Incorrect Situation
- Rainwater flows directly onto the wall.
- Causes structural damage and mold growth.
- Lack of proper detailing leads to moisture penetration.
- Wall surface remains exposed to continuous wetting.
π§Correct Situation
- Rainwater is diverted away from the wall.
- Use of metal flashing / drip edge prevents water seepage.
- Upstand/Empend provides a barrier against moisture.
- Roof slab detailing ensures effective protection.
- Results in long-term durability and moisture resistance.
π§ Solution for Damp Walls
Water leakage at roof edges is one of the most common reasons for damp walls, cracks, and mold growth.
π΄ Incorrect Method:
Without proper metal flashing or drip edge, rainwater flows directly over the roof slab and down the wall surface. This leads to seepage, structural damage, and unhealthy mold formation inside the building.
π’ Correct Method:
Providing a proper metal flashing / drip edge (Babeta) at the roof edge redirects rainwater away from the wall. This simple detailing prevents moisture penetration and protects the structure for long-term durability.
β Small detailing = Big protection!
Always ensure proper roof edge treatment to avoid costly repairs in the future.
π§For more information click this Link Below And Subscribe Our YouTube Channelπ
https://youtube.com/@ethiopianconstruction7?si=ils307xXQQpIdCwG
@etconp
β€9