NICET concrete level 1 2026 UPDATED EXAM
ACTUAL LATEST VERSIONS 65 QUESTIONS AND
CORRECT VERIFIED ANSWERS WITH
RATIONALES (100% CORRECT) A+ GRADED
ASSURED
Bearing blocks shall have dimensions at least ___ % greater that the nominal diameter? (C39) -
CORRECT ANSWER: 3%
bulk density be reported to the nearest.... (C29) - CORRECT ANSWER: 1 LB/ft^3
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
Define entrained air*** - CORRECT ANSWER: Air voids typically 1MM in diameter, intentionally
placed into cementitious mixtures
Define entrapped air*** - CORRECT ANSWER: Typically 1mm or larger unintentionally
incorporated into cementitious mix
Define Gravel*** - CORRECT ANSWER: Course aggregate resulting from natural disintegration
and abrasion of rock
fine aggregate subjected to give cycles of soundness test shall have a weight average loss of not
greater than...? (C33) - CORRECT ANSWER: 10% when sodium sulfate is used
15% when magnesium sulfate is used
How accurate should a pressure gauge be readable?(C231) - CORRECT ANSWER: readable to .1%
, How big should the core sample be for testing compressive strength?(C42) - CORRECT ANSWER:
atleast 3.70" or 2 times the nominal aggregate side
How long must a cylinder be cured before being transported?(C31) - CORRECT ANSWER: 8 hours
How long should it take to raise a slump cone?(C143) - CORRECT ANSWER: 5seconds (+-2)
How long should it take to sample concrete? (C172) - CORRECT ANSWER: Should not exceed 15
Min
How long should records pertaining to standard C1077 be stored? - CORRECT ANSWER: atleast 3
years
How long should the thermometer be submerged? (C1064) - CORRECT ANSWER: a minimum of
2 minutes, no more than 5 minutes
How often shall testing machines be cleaned and lubricated? (C39) - CORRECT ANSWER: atleast
every 6 months or as specified by manufacturer
How should the thermometer be placed in concrete? (C1064) - CORRECT ANSWER: with a
minimum of 3" in all directions
If compressive strength is less that 7000psi, what should the capping strength be? (C617) -
CORRECT ANSWER: a minimum of 5000psi
If concrete has course aggregate over 1.5" or greater what must be done before testing?(C143) -
CORRECT ANSWER: Wet sieving over a 1.5" sieve
ACTUAL LATEST VERSIONS 65 QUESTIONS AND
CORRECT VERIFIED ANSWERS WITH
RATIONALES (100% CORRECT) A+ GRADED
ASSURED
Bearing blocks shall have dimensions at least ___ % greater that the nominal diameter? (C39) -
CORRECT ANSWER: 3%
bulk density be reported to the nearest.... (C29) - CORRECT ANSWER: 1 LB/ft^3
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
Define entrained air*** - CORRECT ANSWER: Air voids typically 1MM in diameter, intentionally
placed into cementitious mixtures
Define entrapped air*** - CORRECT ANSWER: Typically 1mm or larger unintentionally
incorporated into cementitious mix
Define Gravel*** - CORRECT ANSWER: Course aggregate resulting from natural disintegration
and abrasion of rock
fine aggregate subjected to give cycles of soundness test shall have a weight average loss of not
greater than...? (C33) - CORRECT ANSWER: 10% when sodium sulfate is used
15% when magnesium sulfate is used
How accurate should a pressure gauge be readable?(C231) - CORRECT ANSWER: readable to .1%
, How big should the core sample be for testing compressive strength?(C42) - CORRECT ANSWER:
atleast 3.70" or 2 times the nominal aggregate side
How long must a cylinder be cured before being transported?(C31) - CORRECT ANSWER: 8 hours
How long should it take to raise a slump cone?(C143) - CORRECT ANSWER: 5seconds (+-2)
How long should it take to sample concrete? (C172) - CORRECT ANSWER: Should not exceed 15
Min
How long should records pertaining to standard C1077 be stored? - CORRECT ANSWER: atleast 3
years
How long should the thermometer be submerged? (C1064) - CORRECT ANSWER: a minimum of
2 minutes, no more than 5 minutes
How often shall testing machines be cleaned and lubricated? (C39) - CORRECT ANSWER: atleast
every 6 months or as specified by manufacturer
How should the thermometer be placed in concrete? (C1064) - CORRECT ANSWER: with a
minimum of 3" in all directions
If compressive strength is less that 7000psi, what should the capping strength be? (C617) -
CORRECT ANSWER: a minimum of 5000psi
If concrete has course aggregate over 1.5" or greater what must be done before testing?(C143) -
CORRECT ANSWER: Wet sieving over a 1.5" sieve
