WVDOH SOIL & AGGREGATE COMPACTION INSPECTOR
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
The sample size required for a moisture determination when a rerun proctor is necessary (stove dry)
according to MP 207.07.20 is?
(Program Manual MP 207.07.20, Page 9 of 12) - (answer)200 to 400 grams.
According to the Standard Specifications, soil, granular material, soft shale and random material shall be
place in embankments in successive layers not exceeding _____________ thickness after compaction.
(Program Manual MP 717.04.21, Table C, Attachment #3) - (answer)6 inches
When a soil has zero air voids, what does this mean? - (answer)The soil has been compacted to the point
that all air voids are filled with moisture.
Who is responsible for quality control? - (answer)Contractor
Who is responsible for acceptance testing? - (answer)Division of Highways
What corrective action would be required by the contractor for a lot of embankment material which
exhibits pronounced rutting and pumping under the weight of the construction equipment? -
(answer)Scarify, aerate and re-compact before conducting any additional testing or remove the material
and replace it with suitable material.
According to the Standard Specifications, in places inaccessible to a roller, such as adjacent to culverts,
retaining walls and other structures, the fill materials shall be place in __________ compacted layers
uniformly compacted with approved tampers.
(Standard Specifications Book Page 120) - (answer)4 inches
,WVDOH SOIL & AGGREGATE COMPACTION INSPECTOR
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
What are the types of radiation produced by a nuclear gauge? - (answer)Alpha Particles, Neutrons,
Gamma, and Beta
What are the following methods for protection from radiation produced by a nuclear gauge? -
(answer)Shielding, Time, and Distance
How are soils classified? - (answer)Particle Size
In NO case should you place embankment fill when?
(Std. Specs. Book Page 119) - (answer)The Ground is Frozen
What is the minimum percentage for 100% pay of a lot for quality index? - (answer)80%
What is the moisture tolerance when performing a One-Point Proctor? - (answer)+3/-4 Percent
What are the requirements for a compactor used in a soft shale harness test? - (answer)The compactor
must have a minimum coverage of 500 pounds per linear inch, or 500 pounds per square inch of tamping
foot contact
50-feet of 84-inch corrugated metal pipe is being backfilled. The thickness of the backfill will be 9-feet.
How many lots of backfill will be required? - (answer)6 Lots
A lift of embankment material is being placed. The material consists of soft shale and soil. What would
you call the material?
(Std. Specs. Book Page 978 - Section 716) - (answer)Random Material
, WVDOH SOIL & AGGREGATE COMPACTION INSPECTOR
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
Compaction of embankment and subgrade shall meet requirements set forth in? - (answer)Section 716
Standard Specifications Book Page 978
A lift of earthwork material contains approximately 50% rock and 50% random materials. What is the
MAXIMUM lift thickness?
(Std. Specs. Book Page 121 - Section 207) - (answer)12 inches
According to MP 207.07.02, which of the following materials would have a specific gravity of 2.6?
(Program Manual Page 7 of 12) - (answer)Gravel
Which of the following soil types is not permitted for use as structural fill? - (answer)Top Soil
When should a nuclear gauge be calibrated?
(Program Manual MP 717.04.21) - (answer)Every 2 Year
When should a nuclear gauge be standardized? - (answer)Beginning of test and then every four hours
According to MP 207.07.20, when should a One-Point Proctor be determined? - (answer)1.) The 1st test
in a lot
2.) If the material changes
3.) The 1st lot in a fill
4.) The compaction equipment changes
Which of the following materials would NOT be considered as rock? - (answer)Soft Shale
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
The sample size required for a moisture determination when a rerun proctor is necessary (stove dry)
according to MP 207.07.20 is?
(Program Manual MP 207.07.20, Page 9 of 12) - (answer)200 to 400 grams.
According to the Standard Specifications, soil, granular material, soft shale and random material shall be
place in embankments in successive layers not exceeding _____________ thickness after compaction.
(Program Manual MP 717.04.21, Table C, Attachment #3) - (answer)6 inches
When a soil has zero air voids, what does this mean? - (answer)The soil has been compacted to the point
that all air voids are filled with moisture.
Who is responsible for quality control? - (answer)Contractor
Who is responsible for acceptance testing? - (answer)Division of Highways
What corrective action would be required by the contractor for a lot of embankment material which
exhibits pronounced rutting and pumping under the weight of the construction equipment? -
(answer)Scarify, aerate and re-compact before conducting any additional testing or remove the material
and replace it with suitable material.
According to the Standard Specifications, in places inaccessible to a roller, such as adjacent to culverts,
retaining walls and other structures, the fill materials shall be place in __________ compacted layers
uniformly compacted with approved tampers.
(Standard Specifications Book Page 120) - (answer)4 inches
,WVDOH SOIL & AGGREGATE COMPACTION INSPECTOR
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
What are the types of radiation produced by a nuclear gauge? - (answer)Alpha Particles, Neutrons,
Gamma, and Beta
What are the following methods for protection from radiation produced by a nuclear gauge? -
(answer)Shielding, Time, and Distance
How are soils classified? - (answer)Particle Size
In NO case should you place embankment fill when?
(Std. Specs. Book Page 119) - (answer)The Ground is Frozen
What is the minimum percentage for 100% pay of a lot for quality index? - (answer)80%
What is the moisture tolerance when performing a One-Point Proctor? - (answer)+3/-4 Percent
What are the requirements for a compactor used in a soft shale harness test? - (answer)The compactor
must have a minimum coverage of 500 pounds per linear inch, or 500 pounds per square inch of tamping
foot contact
50-feet of 84-inch corrugated metal pipe is being backfilled. The thickness of the backfill will be 9-feet.
How many lots of backfill will be required? - (answer)6 Lots
A lift of embankment material is being placed. The material consists of soft shale and soil. What would
you call the material?
(Std. Specs. Book Page 978 - Section 716) - (answer)Random Material
, WVDOH SOIL & AGGREGATE COMPACTION INSPECTOR
EXAM QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED!!!
Compaction of embankment and subgrade shall meet requirements set forth in? - (answer)Section 716
Standard Specifications Book Page 978
A lift of earthwork material contains approximately 50% rock and 50% random materials. What is the
MAXIMUM lift thickness?
(Std. Specs. Book Page 121 - Section 207) - (answer)12 inches
According to MP 207.07.02, which of the following materials would have a specific gravity of 2.6?
(Program Manual Page 7 of 12) - (answer)Gravel
Which of the following soil types is not permitted for use as structural fill? - (answer)Top Soil
When should a nuclear gauge be calibrated?
(Program Manual MP 717.04.21) - (answer)Every 2 Year
When should a nuclear gauge be standardized? - (answer)Beginning of test and then every four hours
According to MP 207.07.20, when should a One-Point Proctor be determined? - (answer)1.) The 1st test
in a lot
2.) If the material changes
3.) The 1st lot in a fill
4.) The compaction equipment changes
Which of the following materials would NOT be considered as rock? - (answer)Soft Shale
