ACI STRENGTH EXAMINATION TEST 2026
COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS
⩥ Max thickness for caps on cylinders with a compressive strength of
3.5-50MPa(500-7000psi)? Answer: 6mm average, 8mm max at any
point
⩥ Max thickness for caps on cylinders with a compressive strength of
greater then 50 MPa (7000psi)? Answer: 3mm average, max 5mm in any
spot
⩥ When breaking cylinders, the retaining rings height is to fall at?
Answer: 1.0+/- 0.1 in
⩥ What is the max angle a cylinder can depart from perpendicularity
when capping? Answer: 0.5 degrees
⩥ With gypsum cement capping pastes may be removed within 45
minutes, how long must you wait after capping with neat cements
pastes? Answer: 12 hours. Do not exceed the water cement ratio when
making either.
, ⩥ In all cases capping plates shall be at least __mm greater in diameter
than the test specimen. Answer: 12mm.
⩥ When capping, the working surface will not depart from a plane by
more than __mm over 150mm. Answer: .05 mm
⩥ What is the maximum amount of time you can reuse sulfur capping
materials? Answer: 5 reuses.
⩥ Capping surfaces will be free of all grooves, gouges, or indentations
with the largest allowed will be no greater than __mm deep and no more
than 30mm^2 in surface area. Answer: 0.25mm.
⩥ Sulfur capping plates share the same specs as capping plates for other
materials except the recessed area shall be no more than __mm deep?
Answer: 12mm
⩥ If capping cylinders with a strength of 35 MPa(5000psi) or greater
with sulfur caps, are you permitted to use sulfur with reused material?
Answer: No.
⩥ If a hardened cylinder has a deposit of oily or waxy material on it
what should you do to it before capping? Answer: Remove any
obstructing material.
COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS
⩥ Max thickness for caps on cylinders with a compressive strength of
3.5-50MPa(500-7000psi)? Answer: 6mm average, 8mm max at any
point
⩥ Max thickness for caps on cylinders with a compressive strength of
greater then 50 MPa (7000psi)? Answer: 3mm average, max 5mm in any
spot
⩥ When breaking cylinders, the retaining rings height is to fall at?
Answer: 1.0+/- 0.1 in
⩥ What is the max angle a cylinder can depart from perpendicularity
when capping? Answer: 0.5 degrees
⩥ With gypsum cement capping pastes may be removed within 45
minutes, how long must you wait after capping with neat cements
pastes? Answer: 12 hours. Do not exceed the water cement ratio when
making either.
, ⩥ In all cases capping plates shall be at least __mm greater in diameter
than the test specimen. Answer: 12mm.
⩥ When capping, the working surface will not depart from a plane by
more than __mm over 150mm. Answer: .05 mm
⩥ What is the maximum amount of time you can reuse sulfur capping
materials? Answer: 5 reuses.
⩥ Capping surfaces will be free of all grooves, gouges, or indentations
with the largest allowed will be no greater than __mm deep and no more
than 30mm^2 in surface area. Answer: 0.25mm.
⩥ Sulfur capping plates share the same specs as capping plates for other
materials except the recessed area shall be no more than __mm deep?
Answer: 12mm
⩥ If capping cylinders with a strength of 35 MPa(5000psi) or greater
with sulfur caps, are you permitted to use sulfur with reused material?
Answer: No.
⩥ If a hardened cylinder has a deposit of oily or waxy material on it
what should you do to it before capping? Answer: Remove any
obstructing material.
