This article is about Saudi Aramco Civil QC Inspector Interview Questions and related to Civil QA QC engineers, supervisors and managers.
Saudi Aramco Civil QC Inspector Interview Questions
1. Any excavation or trench with a minimum depth of …………… shoring shall be installed or the sides shall be sloped or benched and treated as a confined space.
a) 1.0 m,
b) 1.2 m,
c) 1.3 m,
d) 1.5 m
e) None of the above.
2. Clear space on all sides of excavation shall be at least…………….
a) 0.5 m,
b) 0.6 m,
c) 1.0 m,
d) 1.2 m
e) None of the above.
3. Fill material shall be placed in lifts not exceeding ………….in loose depth.
a) 150 mm,
b) 200 mm,
c) 250 mm,
d) 300 mm
e) None of the above.
4. Fill material shall be placed in lifts not exceeding …………………….in loose depth for hand-operated compaction.
a) 200 mm,
b) 150 mm,
c) 100 mm,
d) 75 mm
e) None of the above.
5. Fill or backfill placed beneath footings, grade beams, mats, buildings, and process areas shall be compacted to at least …………….of the maximum Modified Proctor density as determined by ASTM D1557
a) 85%,
b) 90%,
c) 95%,
d) 98%
e) None of the above.
6. Fill or backfill placed beneath footings, grade beams, mats, buildings, and process areas shall be compacted to at least ……………..relative density for cohesionless free draining soils, as determined by ASTM D4253 and ASTM D4254 shall be used.
a) 70%,
b) 80%,
c) 85%,
d) 90%,
e) None of the above.
7. Coarse aggregates shall be washed prior to concrete batching with water containing less than ……………..of total dissolved solids.
a) 1000 ppm,
b) 1500 ppm,
c) 3000 ppm,
d) 3500 ppm
e) None of the above.
8. Allowable concrete temperature during delivery and placement shall be ……………….maximum.
a) 25 °c,
b) 30 °c,
c) 32 °c,
d) 40 °c
e) None of the above.
9. The concrete specimens shall be subjected for final curing with free water maintained on their surfaces at all times at a temperature of………………. (ASTM C94/ASTM C-31 Sec. 10.1.3)
a) 20°C±2°C ,
b) 23°C±2°C,
c) 25°C±2°C,
d) 28°C±2°C
e) None of the above.
10. The compression testing machine shall be calibrated once in ………………. (ASTM C-39/C39M Sec. 5.1.1.1.1)
a) 3 months,
b) 6 months,
c) 9 months,
d) 12 months.
e) None of the above.
11. Water curing shall be continuous until the compressive strength has reached 70% of the specified strength, but not less than ………days after placement.
a) 7 days
b) 10 days
c) 12 days
d) 14 days
e) None of the above.
12. Concrete shall not be dropped freely where reinforcing will cause segregation nor where it would fall freely for more than………………….
a) 0.9 m,
b) 1 m,
c) 1.2 m,
d) 1.5 m
e) None of the above.
13. Direct Buried Cable / Conduit Trench – A minimum of ……………… dry sand shall be installed from bottom of trench to bottom of cable or conduit (as a cushion).
a) 100 mm,
b) 150 mm,
c) 200 mm,
d) 300 mm
e) None of the above.
14. Concrete Duct bank Trench – The top layer of the concrete …………..minimum thickness shall be mixed with red dye.
a) 5 mm,
b) 6 mm,
c) 8 mm,
d) 9 mm,
e) None of the above.
15. Direct Buried Cable / Conduit Trench – A minimum of …………… dry sand cover shall be installed on top of the cable or conduit (as a cushion).
a) 150 mm,
b) 200 mm,
c) 250 mm,
d) 300 mm,
e) None of the above.
16. Gypsum board width shall be 1220mm to 1370mm with a tolerance of …………..under the specified width. (1997 UBC, Sec. 2502.14; ASTM C36, Sec. 6.2.2)
a) -2 mm,
b) -3 mm,
c) -4 mm,
d) -5 mm,
e) None of the above.
17. The minimum thickness of grout shall be………..
a) 20 mm,
b) 25 mm,
c) 30 mm,
d) 50 mm
e) None of the above.
18. In bolted connections, what is the minimum size of high strength bolts that should be used?
a. 16 mm b. 20 mm c. 12 mm d. 25 mm e. None of the above
19.The minimum time that a plastic sheet should be in place on concrete surface to determine its moisture content by plastic sheet method, ASTM D4263 is
a. 10 hours
b. 24 hours
c. 5 hours
d. 16 hours
e. None of the above
20. The minimum concrete slab thickness supported on the ground is
a. 75 mm(3”)
b. 100 mm(4”)
c. 150 mm(6”)
d. 200 mm(8”)
e. None of the above
21. How many days should a masonry wall be cured prior to grout pouring for high lift grouted construction?
a. 8 days
b. 3 days
c. 7 days
d. 14 days
e. None of the above
22. The maximum particle size of fill material shall be?
a. ½ lift thick
b. ¼ lift thick
c. 1/3 lift thick
d. 1 lift thick
e. None of the above
23. Fill materials shall be placed in lift or layer not exceeding __________ in loose depth.
a. 100 mm
b. 300 mm
c. 200 mm
d. 400 mm
e. None of the above
24. The minimum compressive strength of structural concrete at 28 days is?
a. 2500 psi
b. 150 mm
c. 200 mm
d. 250 mm
e. None of the above
Saudi Aramco Civil QC Inspector Interview Questions
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