NICET CONCRETE LEVEL 1
QUESTIONS & ACTUAL CORRECT
SOLUTIONS PASSED 100%
What is Bulk Density used for? (c29) - Correct Answer ✔✔ Determining Mass/volume
relationship for conversions in purchase agreements
What is the dimensions of plate glass? (C29) - Correct Answer ✔✔ 1/4" thick and at
least 1" larger than the diameter of the measure
What are the requirements for a thermometer? (C1064) - Correct Answer ✔✔ has a
range of at least 30-120°F and readable to the nearest 1°F
When drying aggregate to constant mass, What should the temperature of the oven be?
(C29) - Correct Answer ✔✔ 230°F (+/- 10°F)
When is an aggregate sample considered at constant mass? (C29) - Correct Answer
✔✔ When the 2 sample weights taken an hour apart is less than .1%
What is the formula for Bulk Density? (C29) - Correct Answer ✔✔ (mass of agg. and
measure - mass of measure) /volume of measure
What is is maximum size to use the jigging procedure? (C29*) - Correct Answer ✔✔
Greater than 1.5", but no greater than 5"
What is the formula for void content? (C29) - Correct Answer ✔✔ 100[(bulk specific
gravity X density of water) - Bulk Density of agg./ bulk specific gravity X density of water
bulk density be reported to the nearest.... (C29) - Correct Answer ✔✔ 1 LB/ft^3
What is the significance of ASTM C31? - Correct Answer ✔✔ It provides the
requirements for making, curing, protecting and transporting concrete specimens
If specimens are made and standard cured what can the test results be used for? (C31)
- Correct Answer ✔✔ -Acceptances for specific strength
-checking adequacy of mixture proportions
- Quality Control
if specimens are field cured what can the test results be used for? (C31) - Correct
Answer ✔✔ -Determine if a structure can be put in service
-comparison with test results of standard cure specimens
-form removal time requirements
, What are the specifications of a tamping rod? - Correct Answer ✔✔ A round, smooth,
straight, steel rod. The length should be at least 4" greater than the depth of the mold,
but no greater than 24"
When using the a 4"x 8" cylinder, What are the rod specifications? - Correct Answer ✔✔
straight, steel, w/hemispherical tip 3/8" in diameter (+-1/16")
When using a 6" x 12" cylinder, What are the rod specifications? - Correct Answer ✔✔
straight, steel w/hemispherical tip 5/8" in diameter (+-1/16)
What is the minimum amount of cylinders per test?*** - Correct Answer ✔✔ 3-4"x8"
2-6"x12"
When casting beams how many times should each layer be rodded? - Correct Answer
✔✔ 1 rod per 2in^2
Where should cylinders be stored after consolidation? - Correct Answer ✔✔ in or as
near to the formwork as posssible
What is the curing temp. of concrete less than 6000psi?(C31) - Correct Answer ✔✔
60°F to 80°F
What is the curing temp. of concrete greater than 6000psi?(C31) - Correct Answer ✔✔
68°F to 78°F
How long must a cylinder be cured before being transported?(C31) - Correct Answer
✔✔ 8 hours
The percentage error shall not exceed what percentage for Compression testing
machines? (C39) - Correct Answer ✔✔ 1 % of the indicated load
Bearing blocks shall have dimensions at least ___ % greater that the nominal diameter?
(C39) - Correct Answer ✔✔ 3%
How often shall testing machines be cleaned and lubricated? (C39) - Correct Answer
✔✔ atleast every 6 months or as specified by manufacturer
The measure compressive strength of a drilled core is what compared to properly
molded samples? (C42) - Correct Answer ✔✔ less than a properly molded and cured
specimen.
Damages core samples shall not be used unless...(C42) - Correct Answer ✔✔ The
damaged portions are removed and the length/diameter still satisfies the minimum
requirements
QUESTIONS & ACTUAL CORRECT
SOLUTIONS PASSED 100%
What is Bulk Density used for? (c29) - Correct Answer ✔✔ Determining Mass/volume
relationship for conversions in purchase agreements
What is the dimensions of plate glass? (C29) - Correct Answer ✔✔ 1/4" thick and at
least 1" larger than the diameter of the measure
What are the requirements for a thermometer? (C1064) - Correct Answer ✔✔ has a
range of at least 30-120°F and readable to the nearest 1°F
When drying aggregate to constant mass, What should the temperature of the oven be?
(C29) - Correct Answer ✔✔ 230°F (+/- 10°F)
When is an aggregate sample considered at constant mass? (C29) - Correct Answer
✔✔ When the 2 sample weights taken an hour apart is less than .1%
What is the formula for Bulk Density? (C29) - Correct Answer ✔✔ (mass of agg. and
measure - mass of measure) /volume of measure
What is is maximum size to use the jigging procedure? (C29*) - Correct Answer ✔✔
Greater than 1.5", but no greater than 5"
What is the formula for void content? (C29) - Correct Answer ✔✔ 100[(bulk specific
gravity X density of water) - Bulk Density of agg./ bulk specific gravity X density of water
bulk density be reported to the nearest.... (C29) - Correct Answer ✔✔ 1 LB/ft^3
What is the significance of ASTM C31? - Correct Answer ✔✔ It provides the
requirements for making, curing, protecting and transporting concrete specimens
If specimens are made and standard cured what can the test results be used for? (C31)
- Correct Answer ✔✔ -Acceptances for specific strength
-checking adequacy of mixture proportions
- Quality Control
if specimens are field cured what can the test results be used for? (C31) - Correct
Answer ✔✔ -Determine if a structure can be put in service
-comparison with test results of standard cure specimens
-form removal time requirements
, What are the specifications of a tamping rod? - Correct Answer ✔✔ A round, smooth,
straight, steel rod. The length should be at least 4" greater than the depth of the mold,
but no greater than 24"
When using the a 4"x 8" cylinder, What are the rod specifications? - Correct Answer ✔✔
straight, steel, w/hemispherical tip 3/8" in diameter (+-1/16")
When using a 6" x 12" cylinder, What are the rod specifications? - Correct Answer ✔✔
straight, steel w/hemispherical tip 5/8" in diameter (+-1/16)
What is the minimum amount of cylinders per test?*** - Correct Answer ✔✔ 3-4"x8"
2-6"x12"
When casting beams how many times should each layer be rodded? - Correct Answer
✔✔ 1 rod per 2in^2
Where should cylinders be stored after consolidation? - Correct Answer ✔✔ in or as
near to the formwork as posssible
What is the curing temp. of concrete less than 6000psi?(C31) - Correct Answer ✔✔
60°F to 80°F
What is the curing temp. of concrete greater than 6000psi?(C31) - Correct Answer ✔✔
68°F to 78°F
How long must a cylinder be cured before being transported?(C31) - Correct Answer
✔✔ 8 hours
The percentage error shall not exceed what percentage for Compression testing
machines? (C39) - Correct Answer ✔✔ 1 % of the indicated load
Bearing blocks shall have dimensions at least ___ % greater that the nominal diameter?
(C39) - Correct Answer ✔✔ 3%
How often shall testing machines be cleaned and lubricated? (C39) - Correct Answer
✔✔ atleast every 6 months or as specified by manufacturer
The measure compressive strength of a drilled core is what compared to properly
molded samples? (C42) - Correct Answer ✔✔ less than a properly molded and cured
specimen.
Damages core samples shall not be used unless...(C42) - Correct Answer ✔✔ The
damaged portions are removed and the length/diameter still satisfies the minimum
requirements
