This article is about Civil QC Engineer CBT Test preparation question and answers and almost 100 questions covered in three parts and international standard reference also given. Here is Part 2 of 100 CBT Test Questions For Civil Inspector.
41. 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.
42. Concrete paving shall have control joints or construction joints located at a maximum spacing of ……………..on center in both directions.
a) 5 m,
b) 6 m,
c) 7 m,
d) 8 m
e) None of the above.
43. Place concrete in layers not to exceed …………….thick and consolidate.(ACI 301, Sec. 8.3.1.3)
a) 300 mm,
b) 350 mm,
c) 400 mm,
d) 450 mm
e) None of the above.
45. The hot mix asphalt using the conventional bitumen, shall have a temperature between ……………………………at the time of delivery.
a) 139°C and 163°C,
b) 136°C and 165°C,
c) 139°C and 165°C,
d) 130°C and 160°C
e) None of the above.
46. At the time of spreading and compaction, the conventional hot mix asphalt concrete material shall be at least……………..
a) 130°C,
b) 135°C,
c) 138°C,
d) 139°C
e) None of the above.
47. The hot mix asphalt concrete shall be placed only when the air temperature is above ……………….and it is not foggy, rainy and the existing surface is free of moisture.
a) 5 c,
b) 10 c,
c) 4 c,
d) 40 c
e) None of the above.
48. Bituminous mixture shall be placed so that after rolling, the nominal thickness shall not be more than…………………
a) 70 mm,
b) 75 mm,
c) 80 mm,
d) 90 mm
e) None of the above.
49. All compaction shall be completed before the temperature of the mix falls below…………..
a) 75 c,
b) 85 c,
c) 90 c,
d) 95 c
e) None of the above.
50. The compaction requirements shall be equal to or greater than …………….of the Marshall density (ASTM D2726/ASTM D1559), based on material sampled from the road site.
a) 90%. ,
b) 95%,
c) 96%,
d) 98%
e) None of the above.
Answers Sections:
- 41. b
- 42. b
- 43. c
- 44.
- 45. a
- 46. d
- 47. c
- 48. c
- 49. c
- 50. c
51. The total mineral aggregate shall be ………………… by weight of the asphalt mix.
a) 93-96%,
b) 95-96%,
c) 90-96%,
d) 90-95%
e) None of the above.
52. The total asphalt binder (asphalt content) shall be ………………….by weight of the asphalt mix.
a) 5-7%,
b) 4-7%,
c) 5-6%,
d) 4-8%
e) None of the above.
53. The laboratory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for sub base class “A” material at 95% compaction D1557 shall conform to:
a) 25 min,
b) 30 min,
c) 50 min,
d) 100 mm
e) None of the above.
54. The labortory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for sub base class “B” material at 95% compaction D1557 shall conform to:
a) 25 min,
b) 30 min,
c) 50 min,
d) 100 mm
e) None of the above.
55. The laboratory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for base class “A” material at 95% compaction D1557 shall conform to:
a) 25 min,
b) 50 min,
c) 100 min,
d) All of the above
e) none of above
56. The laboratory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for base class “A” material at 100% compaction D1557 shall conform to:
a) 25 min,
b) 50 min,
c) 100 mm,
d) All of the above
e) none of above
57. The labortory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for base class “B” material at 100% compaction D1557 shall conform to:
a) 25min,
b) 50min,
c) 100mm,
d) All of above
e) None of the above.
58. Max size of road sub base class “A” material passing from sieve size 2.5” shall be ……….
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
59. Max size of road sub base class “B” material passing from sieve size 2” shall be ……….
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
60. Max size of road base class “A” material passing from sieve size 2.5” shall be ……….
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
Answers Sections:
- 51. a
- 52. b
- 53. a
- 54. a
- 55. e
- 56. c
- 57. b
- 58. d
- 59. d
- 60. d
61. Max size of road base class “B” material passing from sieve size 1.5” shall be ……….
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
62. The entire subgrade shall be compacted to not less than ……………of the maximum dry density (ASTM D1557) while within 1.5% of the optimum moisture content (for cohesive soils)
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
63. The entire subgrade shall be compacted to not less than 85% of relative density (ASTM D4253/D4254) (for cohensionless soils).
a) 75%,
b) 80%,
c) 85%,
d) 90%
e) None of the above.
64. Granular base materials shall be placed in layers of uniform thickness with approved spreaders not exceeding ……………….after compaction.
a) 150 mm,
b) 200 mm,
c) 250 mm,
d) 100 mm
e) None of the above.
65. The water content of the base or subbase material shall be maintained to within………………..of the optimum moisture content per ASTM D-1557 or AASHTO T-180 during compaction.
a) ± 2.5 %,
b) ± 1.5 %,
c) ± 3.0 %,
d) ± 3.5 %
e) None of the above.
66. The rolling shall continue until the subbase is compacted to no less than ………….of the maximum laboratory dry density (per ASTM D-1557 or AASHTO T-180) for the full layer depth.
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
67. The rolling shall continue until the base materials are compacted to no less than …………..of the maximum laboratory dry density (per ASTM D-1557 or AASHTO T-180) for the full layer depth.
a) 90%,
b) 95%,
c) 98%,
d) 100%
e) None of the above.
68. Testing shall be conducted at a rate of one test every …………….. of base or sub-base.
a) 1000 ft² (90 m²),
b) 1500 ft² (135 m²),
c) 2000 ft² (180 m²),
d) 500 ft² (45 m²)
e) None of the above.
69. Prime coat is to be applied only when the surface to be treated is dry and the atmospheric temperature is ……………. or above.
a) 12C,
b) 5C,
c) 10C,
d) 16C
e) None of the above.
70. The prime coat shall be applied uniformly to the surface of the base using a pressure distributor at a rate between ………………………….
a) 0.25 and 0.65 litres/m²
b) 0.65 and 1.75 litres/m²
c) 0.65 and 1.25 litres/m²
d) 0.60 and 1.70 litres/m²
e) None of the above.
Answers Sections:
- 61. d
- 62. b
- 63. c
- 64. a
- 65. b
- 66. b
- 67. d
- 68. c
- 69. d
- 70. b
100 CBT Test Questions For Civil Inspector Part 1
100 CBT Test Questions For Civil Inspector Part 3
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