1 for specific request mail
ACI Concrete Strength Testing Technician CP-19 (14)
Questions and Correct Answers | Latest Update
These procedures for capping enable concrete cylinders and cores to
meet the standard's requirements for ________ and _________.
Ans: Planeness, perpendicularity
Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots.
Ans: Plates, alignment, melting
Assignment Expert
Plates for neat cement and high strength gypsum plaster caps should be
Guru01 - Stuvia
made of _____, _____, _____ or _____.
Ans: Glass, metal granite or diabase
Sulfur mortar cap plates should be formed against _____ or _____ plates.
2026
Ans: Metal, Stone
©
The purpose of the guide bar or bull's eye level is to ensure that caps
remain perpendicular to the axis of the cylinder within 0.5 degrees. True
or False?
Ans: True
To avoid accidents during reheating of cooled sulfur, use melting pots
that have _____.
Ans: Peripheral heating
The technician should use a stiff layer of _____ to cap fresh concrete
cylinders.
Ans: Neat cement paste
Hardened concrete cylinders should be capped with _____, _____ or _____.
, 2 for specific request mail
Ans: High-strength gypsum paste, neat cement paste, or sulfur mortar
Plaster of paris and mixtures of plaster of paris and portland cement are
examples of suitable high strength plasters. True or False?
Ans: False
Sulfur mortars and high-strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or ___ __,
whichever is greater.
Ans: 35MPa (5000 psi), the cylinder strength
Assignment Expert
The cement paste should be applied to the freshly molded cylinder from
_____ to _____ hours after molding. This is to allow for _____ of the
Guru01 - Stuvia
concrete specimen.
Ans: 2,4, settling
The strength of the paste depends on:
2026
a) the water-cement ratio
©
b) time
c) the equipment used
d) type of cement
Ans: a, b and d
A slight twisting action will help eliminate _____ and air _____ when the
capping plate is placed onto the mound of the paste.
Ans: Excess paste, voids
Neat cement paste caps should not be used on dry specimens because
the caps may _____ and _____ when dry.
Ans: Shrink, crack
ACI Concrete Strength Testing Technician CP-19 (14)
Questions and Correct Answers | Latest Update
These procedures for capping enable concrete cylinders and cores to
meet the standard's requirements for ________ and _________.
Ans: Planeness, perpendicularity
Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots.
Ans: Plates, alignment, melting
Assignment Expert
Plates for neat cement and high strength gypsum plaster caps should be
Guru01 - Stuvia
made of _____, _____, _____ or _____.
Ans: Glass, metal granite or diabase
Sulfur mortar cap plates should be formed against _____ or _____ plates.
2026
Ans: Metal, Stone
©
The purpose of the guide bar or bull's eye level is to ensure that caps
remain perpendicular to the axis of the cylinder within 0.5 degrees. True
or False?
Ans: True
To avoid accidents during reheating of cooled sulfur, use melting pots
that have _____.
Ans: Peripheral heating
The technician should use a stiff layer of _____ to cap fresh concrete
cylinders.
Ans: Neat cement paste
Hardened concrete cylinders should be capped with _____, _____ or _____.
, 2 for specific request mail
Ans: High-strength gypsum paste, neat cement paste, or sulfur mortar
Plaster of paris and mixtures of plaster of paris and portland cement are
examples of suitable high strength plasters. True or False?
Ans: False
Sulfur mortars and high-strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or ___ __,
whichever is greater.
Ans: 35MPa (5000 psi), the cylinder strength
Assignment Expert
The cement paste should be applied to the freshly molded cylinder from
_____ to _____ hours after molding. This is to allow for _____ of the
Guru01 - Stuvia
concrete specimen.
Ans: 2,4, settling
The strength of the paste depends on:
2026
a) the water-cement ratio
©
b) time
c) the equipment used
d) type of cement
Ans: a, b and d
A slight twisting action will help eliminate _____ and air _____ when the
capping plate is placed onto the mound of the paste.
Ans: Excess paste, voids
Neat cement paste caps should not be used on dry specimens because
the caps may _____ and _____ when dry.
Ans: Shrink, crack
