ACI ACTUAL EXAM QUESTIONS AND
COMPLETE STUDY GUIDE 2026
▶ To avoid _____, the sulfur mortar should be dry when it is added to the
pot. It should be kept away from _____ when heating.. Answer: Foaming,
water
▶ The melting pot for the sulfur mortar must be located under a _____ with
an _____ for _____.. Answer: Hood, exhaust fan, ventillation
▶ Hydrogen sulfide gas, which may be produced during capping, may be
_____, _____, _____, _____ and _____.. Answer: Lethal, nausea,
stomach distress, dizziness, headache, irritation of the eyes.
▶ When qualification tests of unbonded pads are required, they are
performed by the _____ or _____.. Answer: Supplier, user
▶ This standard (ASTM 1231) established a maximum number of pad
reuses that may not be exceeded under any circumstances. True or false?.
Answer: False
▶ Unbonded caps are not to be used for acceptance testing of concrete
with compressive strength below _____ or above _____.. Answer: 1500
psi (10 MPa), 12,000 psi (80 MPa)
▶ Polyurethane or butyl pads with a Shore A durometer hardness of 50
that will be used on concrete with a compressive strength of 1500 to 6000
psi (10 to 40 MPa) need not be qualified prior to use. True of False?.
Answer: False
▶ To keep track of pad usage, the user is required to maintain records that
include_____.. Answer: Date placed in service, pad durometer, number of
uses
, ▶ if a new neoprene pad with a Shore A durometer hardness of 50 is
intended to test concrete cylinders with anticipated compressive strengths
between 1500 and 6000 psi (10 and 40 MPa), it may be used "as is" from
the manufacturer without further qualification testing. True or False?.
Answer: True
▶ The term "unbonded cap" refers to the combination of a metal retainer
and an elastomeric pad. True or False?. Answer: True
▶ The practice of ASTM C1231 may be used instead of the capping
requirements ASTM C617. True or False?. Answer: True
▶ The pads provide a uniform distribution of load from the bearing blocks
of the testing machine by deforming in initial loading to conform to the
contour of the ends of the cylinder. True or False?. Answer: True
▶ When qualifying unbonded caps, strengths below ____% of the average
obtained from bonded caps is considered unacceptable.. Answer: 98%
▶ The practice of ASTM C1231 contains step-by-step procedures for
aligning the specimens in the testing machine through complete failure of
the cylinder. True or False?. Answer: False; only through initial application
of the load
▶ The pads used in this practice (ASTM C1231) must be _____ thick, and
the diameter shall not be more than _____ smaller than the inside diameter
of the retaining ring.. Answer: 1/2 ± 1/16 in., 1/16 in.
▶ The height of the metal retaining ring must be _____.. Answer: 1.0 ± 0.1
in.
▶ The inside diameter of the retaining rings shall not be less than _____ or
greater than _____ of the diameter of the cylinder.. Answer: 102%, 107%
▶ Neither end of the cylinder shall depart from perpendicularity by more
than _____.. Answer: 0.5 degrees
▶ Depressions in the ends of the cylinders that exceed ____ must be
corrected by sawing or grinding prior to testing.. Answer: .20 in.
COMPLETE STUDY GUIDE 2026
▶ To avoid _____, the sulfur mortar should be dry when it is added to the
pot. It should be kept away from _____ when heating.. Answer: Foaming,
water
▶ The melting pot for the sulfur mortar must be located under a _____ with
an _____ for _____.. Answer: Hood, exhaust fan, ventillation
▶ Hydrogen sulfide gas, which may be produced during capping, may be
_____, _____, _____, _____ and _____.. Answer: Lethal, nausea,
stomach distress, dizziness, headache, irritation of the eyes.
▶ When qualification tests of unbonded pads are required, they are
performed by the _____ or _____.. Answer: Supplier, user
▶ This standard (ASTM 1231) established a maximum number of pad
reuses that may not be exceeded under any circumstances. True or false?.
Answer: False
▶ Unbonded caps are not to be used for acceptance testing of concrete
with compressive strength below _____ or above _____.. Answer: 1500
psi (10 MPa), 12,000 psi (80 MPa)
▶ Polyurethane or butyl pads with a Shore A durometer hardness of 50
that will be used on concrete with a compressive strength of 1500 to 6000
psi (10 to 40 MPa) need not be qualified prior to use. True of False?.
Answer: False
▶ To keep track of pad usage, the user is required to maintain records that
include_____.. Answer: Date placed in service, pad durometer, number of
uses
, ▶ if a new neoprene pad with a Shore A durometer hardness of 50 is
intended to test concrete cylinders with anticipated compressive strengths
between 1500 and 6000 psi (10 and 40 MPa), it may be used "as is" from
the manufacturer without further qualification testing. True or False?.
Answer: True
▶ The term "unbonded cap" refers to the combination of a metal retainer
and an elastomeric pad. True or False?. Answer: True
▶ The practice of ASTM C1231 may be used instead of the capping
requirements ASTM C617. True or False?. Answer: True
▶ The pads provide a uniform distribution of load from the bearing blocks
of the testing machine by deforming in initial loading to conform to the
contour of the ends of the cylinder. True or False?. Answer: True
▶ When qualifying unbonded caps, strengths below ____% of the average
obtained from bonded caps is considered unacceptable.. Answer: 98%
▶ The practice of ASTM C1231 contains step-by-step procedures for
aligning the specimens in the testing machine through complete failure of
the cylinder. True or False?. Answer: False; only through initial application
of the load
▶ The pads used in this practice (ASTM C1231) must be _____ thick, and
the diameter shall not be more than _____ smaller than the inside diameter
of the retaining ring.. Answer: 1/2 ± 1/16 in., 1/16 in.
▶ The height of the metal retaining ring must be _____.. Answer: 1.0 ± 0.1
in.
▶ The inside diameter of the retaining rings shall not be less than _____ or
greater than _____ of the diameter of the cylinder.. Answer: 102%, 107%
▶ Neither end of the cylinder shall depart from perpendicularity by more
than _____.. Answer: 0.5 degrees
▶ Depressions in the ends of the cylinders that exceed ____ must be
corrected by sawing or grinding prior to testing.. Answer: .20 in.
