NICET LEVEL 2 EARTH WORK EXAM 2025 (100 OUT OF
100) QUESTIONS AND ANSWERS.
What does the Sand Cone Method Determine?
- CORRECT ANSWER :>>In-place density of soil and aggregates
Mass for sand cone test should be recorded to nearest?
- CORRECT ANSWER :>>0.01lbs
Sand cone test can also be used to determine?
- CORRECT ANSWER :>>Moisture content and dry mass of excavated soil
How to determine percent compaction?
- CORRECT ANSWER :>>Dry Density/Lab max density x 100
What size particles should not be used during the sand cone test?
- CORRECT ANSWER :>>Non-Cementous with few to no particles passing #200 sieve and non-retained
in #10 sieve
What does the proctor test determine?
- CORRECT ANSWER :>>Moisture density relationship of soils and soil-aggregates
What size molds are used for the proctor test?
- CORRECT ANSWER :>>4" molds and 6" molds
What size rammers are used for the proctor test?
- CORRECT ANSWER :>>5lbs with 12" drop and 10lbs with 18" drop
How many blows are required per mold for proctor test?
- CORRECT ANSWER :>>25 blows for 4" mold and 56 blows for 6" mold
How many lifts are required per mold for proctor test?
- CORRECT ANSWER :>>4" mold requires 3 lifts while 6" mold requires 5 lifts
What is the requirement for compacted depth for proctor test?
- CORRECT ANSWER :>>5"
What is the purpose of Nuclear Density Gauge?
- CORRECT ANSWER :>>Determines density of compacted material
When is backscatter method for nuclear density gauge used?
, - CORRECT ANSWER :>>When properties of the first few inches are concerned such as HMA
When is Direct Transmission for nuclear density gauge used?
- CORRECT ANSWER :>>When properties are within 2"-12" are concerned such as compacted backfill
What is the spacing for multiple nuclear density gauge that are being conducted?
- CORRECT ANSWER :>>Each test has to be spaced 30' from each other
What are the requirements when preparing to do the nuclear density test?
- CORRECT ANSWER :>>6" away from vertical projections and 24" away from a wall
What is the void space underneath the nuclear density gauge?
- CORRECT ANSWER :>>1/8"
What is the Wet Density test requirements for single direct transmission in soil conditions?
- CORRECT ANSWER :>>CL: .94lb/ft^3,
SP: .74lb/ft^3
ML: 1.28lb/ft^3
What is the wet density test requirement for backscatter in soil conditions?
ML: 3.39lb/ft^3
What is the wet density test requirements for single operator in soil conditions?
- CORRECT ANSWER :>>CL: .97%
SP: 1.29%
ML: .99%
What is the visual identification for Coarse Gravel?
- CORRECT ANSWER :>>Particle of rock that will pass 3" but be retained in 3/4" sieve
What is the visual identification for fine gravel?
- CORRECT ANSWER :>>Particle of rock that will pass 3/4" and be retained on a #4 Sieve
What is the visual identification of Coarse Sand?
- CORRECT ANSWER :>>Particle of rock that will pass #4 sieve and be retained in #10 sieve
What is the visual identification of medium sand?
- CORRECT ANSWER :>>Particles of rock that will pass #10 sieve and be retained on a #40 sieve
What is the visual identification of fine sand?
- CORRECT ANSWER :>>Particles of rock that will pass #40 and be retained on a #200 Sieve
100) QUESTIONS AND ANSWERS.
What does the Sand Cone Method Determine?
- CORRECT ANSWER :>>In-place density of soil and aggregates
Mass for sand cone test should be recorded to nearest?
- CORRECT ANSWER :>>0.01lbs
Sand cone test can also be used to determine?
- CORRECT ANSWER :>>Moisture content and dry mass of excavated soil
How to determine percent compaction?
- CORRECT ANSWER :>>Dry Density/Lab max density x 100
What size particles should not be used during the sand cone test?
- CORRECT ANSWER :>>Non-Cementous with few to no particles passing #200 sieve and non-retained
in #10 sieve
What does the proctor test determine?
- CORRECT ANSWER :>>Moisture density relationship of soils and soil-aggregates
What size molds are used for the proctor test?
- CORRECT ANSWER :>>4" molds and 6" molds
What size rammers are used for the proctor test?
- CORRECT ANSWER :>>5lbs with 12" drop and 10lbs with 18" drop
How many blows are required per mold for proctor test?
- CORRECT ANSWER :>>25 blows for 4" mold and 56 blows for 6" mold
How many lifts are required per mold for proctor test?
- CORRECT ANSWER :>>4" mold requires 3 lifts while 6" mold requires 5 lifts
What is the requirement for compacted depth for proctor test?
- CORRECT ANSWER :>>5"
What is the purpose of Nuclear Density Gauge?
- CORRECT ANSWER :>>Determines density of compacted material
When is backscatter method for nuclear density gauge used?
, - CORRECT ANSWER :>>When properties of the first few inches are concerned such as HMA
When is Direct Transmission for nuclear density gauge used?
- CORRECT ANSWER :>>When properties are within 2"-12" are concerned such as compacted backfill
What is the spacing for multiple nuclear density gauge that are being conducted?
- CORRECT ANSWER :>>Each test has to be spaced 30' from each other
What are the requirements when preparing to do the nuclear density test?
- CORRECT ANSWER :>>6" away from vertical projections and 24" away from a wall
What is the void space underneath the nuclear density gauge?
- CORRECT ANSWER :>>1/8"
What is the Wet Density test requirements for single direct transmission in soil conditions?
- CORRECT ANSWER :>>CL: .94lb/ft^3,
SP: .74lb/ft^3
ML: 1.28lb/ft^3
What is the wet density test requirement for backscatter in soil conditions?
ML: 3.39lb/ft^3
What is the wet density test requirements for single operator in soil conditions?
- CORRECT ANSWER :>>CL: .97%
SP: 1.29%
ML: .99%
What is the visual identification for Coarse Gravel?
- CORRECT ANSWER :>>Particle of rock that will pass 3" but be retained in 3/4" sieve
What is the visual identification for fine gravel?
- CORRECT ANSWER :>>Particle of rock that will pass 3/4" and be retained on a #4 Sieve
What is the visual identification of Coarse Sand?
- CORRECT ANSWER :>>Particle of rock that will pass #4 sieve and be retained in #10 sieve
What is the visual identification of medium sand?
- CORRECT ANSWER :>>Particles of rock that will pass #10 sieve and be retained on a #40 sieve
What is the visual identification of fine sand?
- CORRECT ANSWER :>>Particles of rock that will pass #40 and be retained on a #200 Sieve
