(8)Civil Inspector Questions 100

8/13/2019 (8)Civil Inspector Questions 100

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100 TEST QUESTIONS FOR CIVIL INSPECTOR

1. Fill material retained on 75mm sieve shall be………………….

a) 5%

b) 100%

c) 0%

d) 50%

e) None of the above

2. Amount of selected fill material passing ………………sieve shall be 100%.

a) 75mm

b) 4.75mm

c) 50mm

d) 25mm

e) None of the above.

3. No marl fill material shall be retained on ……………..sieve.

a) 50mm,

b) 100mm,

c) 75mm,

d) 65mm


4. As a minimum, 'Select Fill Material' shall be used within …………………of the bottom elevation of

foundations, spread footings, or slabs-on-grade when fill is required to achieve final grade.

a) 0.6m,

b) 0.5m,

c) 0.9m,

d) 0.3m




5. 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) 1.0m,

b) 1.2 m,

c) 1.3m,

d) 1.5m


6. Clear space on all sides of excavation shall be at least…………….

a) 0.5m,

b) 0.6 m,

c) 1.0m,

d) 1.2m


7. Fill material shall be placed in lifts not exceeding ………….in loose depth.

a) 150mm,

b) 200mm,

c) 250mm,

d) 300mm


8. Fill material shall be placed in lifts not exceeding …………………….in loose depth for hand-operated

compaction.

a) 200mm,

b) 150mm,

c) 100mm,

d) 75mm




9. Compaction shall begin only after the fill or backfill has been properly placed and the material to

be compacted is at the proper moisture content. ……………………..of the optimum moisture content per

ASTM D1557 or ASTM D698, whichever is applicable.

a) +1.5%,

b) +2.0%,

c) +2.5%,

d) +3.0%


10. Under foundations with static loads over 320kPa and foundations for vibrating or heavy

machinery and pavements ……………….of the maximum density as determined by ASTM D1557 for

cohesive materials.

a) 90%, b) 95%, c) 98%, d) 100% e) None of the above.

11. Under foundations with static loads over 320kPa and foundations for vibrating or heavy

machinery and pavements ……………of relative density (ASTM D4253/ASTM D4254) for cohesionless soils

a) 70%,

b) 75%,

c) 80%,

d) 85%


12. The depth of the test holes for nuclear method shall be no greater than deep. (ASTM D 2922,

Sec. 1.1)

a) 150mm,

b) 200mm,

c) 250mm,

d) 300mm


13. The final finished right of way shall be at least …………. meters wide and ……………… meters in

Sabkha areas.

a) 4m and 5m,

b) 5m and 6m,



c) 5.5m and 6.5m,

d) 6m and 7m


14. The pipe shall be embedded in clean sand not less than …………………..above the top of the pipe.

a) 150mm,

b) 200mm,

c) 250mm,

d) 300mm


15. The bottom of pipes in the trenches shall be …………..above the highest recorded ground water

level.

a) 100mm,

b) 120mm,

c) 150mm,

d) 200mm


16. The width of the sand pad shall be ……………in Sabkha areas and is required on only one side ofthe pipeline.

a) 2m,

b) 2.5m,

c) 3m,

d) 3.5m


17. LPG Lines, gas lines and oil well flowlines in trenches shall have a minimum cover of…………., all

others shall have…………….

a) 800mm and 500mm,

b) 850mm and 550mm,

c) 900mm and 600mm,

d) 1000mm and 650mm




18. 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%


19. 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%,


20. Fine grout mix proportions shall be …….. part Portland cement …………….. part slaked lime

and…………………… parts fine aggregates.(ACI 530.1, Sec. 2.6B.1)

a) 1part cement, 0.1 part slaked lime and 2.25-3.0 parts fine aggregates.

b) 1part cement, 0.25 part slaked lime and 3.25-3.5 parts fine aggregates

c) 1part cement, 0.27 part slaked lime and 2.25-2.5 parts fine aggregates

d) 1part cement, 0. 3part slaked lime and 3.0-3.25 parts fine aggregates

e) 1part cement, 1 part slaked lime and 4.0-6.25 parts fine aggregates

21. Coarse grout mix proportions shall be: 1 part Portland cement; …………….part slaked lime;

…………….1-2 parts coarse aggregates. (ACI 530.1, Sec. 2.6B.1)

a)

1part cement, 0.1 part slaked lime and 1-2.0 parts fine aggregates.b) 1part cement, 0.25 part slaked lime and 2.2-2.5 parts fine aggregates

c) 1part cement, 0.27 part slaked lime and 2.0-2.5 parts fine aggregates

d) 1part cement, 0. 3part slaked lime and 3.0-3.25 parts fine aggregates

e) 1part cement, 0.6 part slaked lime and 3.0-3.5 parts fine aggregates

22. Alignments of masonry walls shall be within ……………………for bearing walls (ACI 530.1, Sec.

3.3.G.2.d)

a) +0.75”,



b) +0.6,

c) + 0.5"

d) +0.25”

e) +0.9,

23. Alignments of masonry walls shall be within …………………..for non-bearing walls. (ACI 530.1, Sec.

3.3.G.2.d)

a) + 0.75",

b) +0.6,

c) + 0.5"

d) +0.25”

e) + 0.92

24. Plumbness of masonry walls shall be ………………………….. or + 0.5" max. (ACI 530.1, Sec. 3.3.G.2.b)

a) + 0.3"/10' to +0.375”/20',

b) + 0.25"/10' to +0.3”/20',

c) + 0.25"/10' to +0.375”/20',

d) + 0.2"/10' to +0.375”/20'


25. Portland Cement Plaster Mix Proportions shall be: 1 Part Portland Cement; …………… Part

Slaked Lime; ………………. Parts Fine Sand Aggregate. (ACI 530.1, Sec. 2.6.B.1)

a) 0.1 Part Slaked Lime and 2.25 Parts Fine Sand Aggregate

b) 0.2 Part Slaked Lime and 2.00 Parts Fine Sand Aggregate

c) 0.15 Part Slaked Lime and 2.5 Parts Fine Sand Aggregate

d) 0.12 Part Slaked Lime and 2.75 Parts Fine Sand Aggregate


26. The Total Dissolved Solids (TDS) and pH value of mixing water shall be:

a) Max 500ppm and 8 to 6,

b) max 1000 and 7 to 9,

c) max 1500 and 8.5 to 9,

d) max 10000 and 7.5 to 8




27. Coarse aggregates shall be washed prior to concrete batching with water containing less than

……………..of total dissolved solids.

a) 1000ppm,

b) 1500ppm,

c) 3000ppm,

d) 3500ppm


28. Any manufactured sand shall be washed with water prior to batching concrete; the water shall

contain less than ……………..of total dissolved solids.

a) 1000ppm,

b) 1500ppm,

c) 3000ppm,

d) 3500ppm


29. Temperature test shall be made with a frequency of not less than one test for every ……………..of

concrete on each day, or 1 test each day for each class of concrete delivered. (ASTM C94-04, Sec. 16.5)

a) 50m3,

b) 100m3,

c) 115m3,

d) 125m3


30. Allowable concrete temperature during delivery and placement shall be ……………….maximum.

a) 25c,

b) 30c,

c) 32c,

d) 40c




31. 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


32. 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.


33. When the extent of damaged coating exceeds ………….of the surface area of the coated steel

reinforcing bar in any 0.3 –m (1 –ft) length, the coated bar should be rejected. (ASTM A775, Sec. XI.3.8)

a) 1%,

b) 2%,

c) 3%,

d) 5%


34. Concrete shall be discharged from the mixer within ……………………….of the mixer from the time

the mixing water was added. ASTM C-94, Sec. 11.7

a) 80 minutes or 250 revolutions,

b) 90 minutes or 350 revolutions,

c) 100 minutes or 300 revolutions,

d) 90 minutes or 300 revolutions


35. Min concrete cover for permanently exposed concrete structures to earth (including

foundations over a sub-slab), weather supporting process equipment foundations shall be ……………..



a) 50mm,

b) 75mm,

c) 100mm,

d) 125mm


36. Minimum clear distance from anchor bolts or sleeves to edge of concrete shall be………………...

a) 50mm,

b) 75mm,

c) 100mm,

d) 125mm


37. The minimum anchor bolt diameter shall be …………………unless specified by the vendor for small

equipment or for the anchorage of small miscellaneous items e.g. ladder supports, small piping

supports, handrail anchorage, stair stringers, small platforms etc.

a) 25mm,

b) 20mm,

c) 50mm

d) 60mm


38. Variation in elevation of the tops of anchor bolts shall be equal to or less than……………. (AISC

7.5.1c)

a) ±10mm,

b) ±13mm,

c) ±15mm,

d) ±20mm


39. Maximum total dissolved solids in water used for moist curing shall not exceed……..

a) 500ppm,



b) 1000ppm,

c) 1500ppm,

d) 3000ppm


40. Water curing shall be continuous until the compressive strength has reached 70% of the

specified strength, but not less than ………days after placement.

a) 7days

b) 10days

c) 12days

d) 14days


41. Concrete shall not be dropped freely where reinforcing will cause segregation nor where it

would fall freely for more than………………….

a) 0.9m,

b) 1m,

c) 1.2m,

d) 1.5m


42. Concrete paving shall have control joints or construction joints located at a maximum spacing of

……………..on center in both directions.

a) 5m,

b) 6m,

c) 7m,

d) 8m


43. Place concrete in layers not to exceed …………….thick and consolidate.(ACI 301, Sec. 8.3.1.3)

a) 300mm,



b) 350mm,

c) 400mm,

d) 450mm


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


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


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) 5c,

b) 10c,

c) 4c,

d) 40c


48. Bituminous mixture shall be placed so that after rolling, the nominal thickness shall not be more

than………………...

a) 70mm,

b) 75mm,



c) 80mm,

d) 90mm


49. All compaction shall be completed before the temperature of the mix falls below…………..

a) 75c,

b) 85c,

c) 90c,

d) 95c


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%


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%


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%




53. The labortory 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) 25min,

b) 30min,

c) 50min,

d) 100mm


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) 25min,

b) 30min,

c) 50min,

d) 100mm


55. The labortory California Bearing Ratio (CBR) per ASTM D1883 or AASHTO T-193 for base class

“A” material at 95% compaction D1557 shall conform to:

a) 25min,

b) 50min,

c) 100min,

d) All of the above

e) none of above


“A” material at 100% compaction D1557 shall conform to:

a) 25min,

b) 50min,

c) 100mm,

d) All of the above

e) none of above




“B” material at 100% compaction D1557 shall conform to:

a) 25min,

b) 50min,

c) 100mm,

d) All of 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%


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%


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%


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%


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%


63. The entire subgrade shall be compacted to not less than 85% of relative density (ASTMD4253/D4254) (for cohensionless soils).

a) 75%,

b) 80%,

c) 85%,

d) 90%


64. Granular base materials shall be placed in layers of uniform thickness with approved spreaders

not exceeding ……………….after compaction.

a) 150mm,

b) 200mm,

c) 250mm,

d) 100mm


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 %


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%


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%


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)


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




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


71. The prime coat shall be applied at a temperature between …………………….for MC-70

a) 50C and 70C,

b) 60C and 80C,

c) 50C and 80C,

d) 50C and 90C


72. The prime coat shall be applied at a temperature between ………………….. for MC-250.

a) 65C and 105C, b) 60C and 100C, c) 65C and 115C, d) 60C and 80C e) None of the above.

73. The tack coat shall be applied on paved surfaces and vertical surfaces which will be in contact

with the asphalt paving by means of a bitumen distributor at a maximum rate of ……………………..

a) 0.20 liters/m2.,

b) 0.25 liters/m2.,

c) 0.55 liters/m2.,

d) 0.65 liters/m2.


74. Tack coats shall not be placed during rain, on a moist surface when the air or surface

temperature is below………………...

a) 10C,

b) 15C,

c) 16C,

d) 20C




75. If application of the surface course is delayed by more than………………, or if dirt, sand, or other

impurities have contaminated the tack coat, then a new tack coat shall be applied after the original one

has been swept clean.

a) 24 hours,

b) 36 hours,

c) 2 days,

d) 3 days


76. Measurement of any cores shall not be less than ………………of the design thickness, whichever is

less.

a) 10mm or 15%,

b) 12mm or 10%,

c) 15mm or 15%,

d) 10mm or 10%


77. Core compaction requirements shall be equal to or greater than ………………….of Marshall density

(ASTM D-2726/ASTM D1559) using samples taken at the road site.

a) 95%,

b) 96%,

c) 98%,

d) 100%


78. Minimum Compressive Strength of pre-packaged cement based grout at 28 days shall be……….

a) 3,000psi,

b) 4,000psi,

c) 4,500psi,

d) 5,000psi




79. Standard temperature of mix shall be …………….when test cubes are cast. (ASTM C1107, Sec.

9.1.2)

a) 20C + 5C,

b) 23C + 2C,

c) 23C + 3C,

d) 23C + 5C


80. The compressive strength of the grout shall be a minimum of……………… at 7 days of age. (ASTM

C 1107, Sec. 7.2, Table 1)

a) 3000psi,

b) 3500psi,

c) 4500psi,

d) 5000psi


81. Grout shall be given a continuous water cure (covered by wet burlap and 0.15mm polyethylene)

for a minimum of…………... (ASTM C309, Sec. 5.1)

a) 7 days,

b) 1 days,

c) 3 days,

d) 5 days


82. Grout placement shall be within the …………………….. at 32 C minimum working time, after mixing.

(PIP STS03601, Sec. 6.3.2)

a) 30 minute,

b) 40 minute,

c) 50 minute,

d) 60 minute


83. Minimum compressive strength shall be…………………. at 7days.

a) 5,000psi,



b) 12,000psi,

c) 14,000psi,

d) 15,000psi


83. The minimum size of a Public Sewer shall be ……………….nominal diameter.

a) 100mm,

b) 150mm,

c) 200 mm,

d) 250mm


84. The maximum distance between manholes for public sewers shall be …………..

a) 60m, b) 70m, c) 80, d) 90m e) None of the above.

85. Public sewers that are parallel to potable water lines shall be separated from such lines by a

minimum distance of ……………and shall be located below the potable water lines.

a) 3m,

b) 2m,

c) 5m,

d) 4m


86. Minimum pressure rating of valves shall be ……………

a) 12.1 bar,

b) 13 bar,

c) 14bar,

d) 15bar


87. For trenches deeper than……………., RTR pipe shall be assembled in the trench.

a) 1.5m,

b) 2 m,



c) 2.5,

d) 3m


88. The minimum diameter of a storm drain pipe (except building connections) or road crossing

culvert shall be…………….

a) 200mm,

b) 250mm,

c) 300 mm,

d) 350mm


89. Storm drain manholes shall have a minimum inside diameter of …………for straight run manholeswith a pipe diameter size of 600 mm or less

a) 1m,

b) 1.2 m,

c) 1.5m

d) 1.8m


90. 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) 100mm,

b) 150 mm,

c) 200mm,

d) 300mm


91. Concrete Duct bank Trench - The top layer of the concrete …………..minimum thickness shall be

mixed with red dye.

a) 5 mm,

b) 6mm,

c) 8mm,



d) 9mm,


92. 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) 150mm,

b) 200mm,

c) 250mm,

d) 300 mm,


93. 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) -2mm,

b) -3mm,

c) -4mm,

d) -5mm,


94. Gypsum board corners shall be square with a tolerance of …………..over the full width of the

board. (1997 UBC, Sec. 2502.14; ASTM C36, Sec. 6.2.5)

a) + 2mm,

b) + 3mm,

c) + 4mm,

d) + 5mm


95. Wood supports for lath or gypsum board shall not be less than ……………. in least dimension.(1997 UBC, Sec. 2503.2)

a) 2",

b) 3”,

c) 4”,

d) 5”



100. The minimum thickness of grout between the foundation and base plates shall be…………..steel

Shim and Packings to be provided.

a) 10mm,

b) 15mm,

c) 29mm,

d) 25mm


101. In bolted connections, what is the minimum size of high strength bolts that should be used?

a. 16mm

b. 20mm

c. 12mm

d. 25mm

e. None of the above

102. The minimum thickness of gusset and stiffener plate should be?

a. 6mm

b. 12mm

c. 8mm

d. 10mm


103. 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


104. The minimum concrete slab thickness supported on the ground is

a. 75mm(3”)

b. 100mm(4”)

c. 150mm(6”)



d. 200mm(8”)


105 . 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


106 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


107. A fill material to be classified, as “select fill” shall contain __________% particles passing thru

#200 sieves.

a. 0 to 5

b. 0 to 10

c. 0 to 20

d. 5 to 15


108. Fill materials shall be placed in lift or layer not exceeding __________ in loose depth.

a. 100mm

b. 300mm

c. 200mm

d. 400mm


109 Free draining soils or cohesion less material shall be compacted to __________ % relative

density.



a. 70

b. 75

c. 90

d. 95


110. The minimum compressive strength of structural concrete at 28 days is?

a. 2500psi

b. 3000psi

c. 4000psi

d. 5000psi


111. Paving slabs subject to vehicular traffic shall have a minimum thickness of?

a. 100mm

b. 150mm

c. 200mm

d. 250mm


112. Control or construction joints for concrete paving shall be spaced at a maximum of _________

meters in both directions.

a. 2.0

b. 4.0

c. 6.0

d. 8.0

e. None of the above.

113. Concrete may be allowed to drop freely at a maximum height of?

a. 0.5m

b. 1m

c. 3m

d. 2m




114.Cementations non-shrink grout shall have a compressive strength of?

a. 2000psi

b. 2500psi

c. 5000psi

d. 6000psi


115.End lap for metal panels shall not be less than?

a. 250mm

b. 150mm

c. 100mm

d. 200mm


116.A beam with a depth of 8 inches requires ___________ number of rows of bolts.

a. 1

b. 2

c. 3

d. 4


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