1|Page
ASTM ACI CONCRETE STRENGTH TESTING LAB TECHNICIAN EXAM
NEWEST 2025/2026 ACTUAL EXAM WITH COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (100% VERIFIED ANSWERS)
|ALREADY GRADED A+| ||PROFESSOR VERIFIED||
Testing machine shall hold the peak value of the maximum load
within ______ accuracy - ANSWER-1%
ASTM Standard dealing with proper capping methods -
ANSWER-C617
The procedure for capping enables concrete cylinders to meet the
standard's requirements for ____ and ____ - ANSWER-
Planeness and Perpendicularity
equipment needed for the capping process include ____, ____
devices, and ____ pots - ANSWER-plates, alignment, melting
Plates for neat cement and high-strength gypsum plaster caps
should be made of ____, ____, ____, or ____ - ANSWER-glass,
metal, granite, diabase
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Sulfur mortar cap plates should be formed against _____ or
_____ - ANSWER-metal or stone
The purpose of the guide bar or bullseye level is that caps remain
perpendicular to the axis of the cylinder within _____ degrees -
ANSWER-.5
to avoid accidents during reheating, use melting pots that have
_____ _____ - ANSWER-peripheral heating
The technician should use a stiff layer of _____ to cap fresh
concrete cylinders. - ANSWER-Neat Cement Paste
Hardened concrete cylinders should be capped with _____ _____
_____ _____, _____ _____ _____, or _____ _____. - ANSWER-
high strength gypsum paste, neat cement paste or sulfur mortar
Plaster of Paris and Portland Cement are examples of suitable
high-strength plasters. True or False? - ANSWER-False- They are
not suitable
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Sulfur mortars and high strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or _____;
whichever is greater. - ANSWER-5000 psi or 35 MPa or the
cylinder's strength
The cement paste should be applied to the freshly molded
cylinders from _____ to ______ hours after molding. This is to
allow ______ of the concrete specimen. - ANSWER-2 to 4, setting
The strength of the cement paste depends on: Choose all that
apply:
a) water-cement ratio
b) time
c) equipment used
d) type of cement - ANSWER-a, b, d
A slight twisting motion will help eliminate _____ and air _____
when the capping plate is placed onto the mound of paste. -
ANSWER-excess paste, voids
ASTM ACI CONCRETE STRENGTH TESTING LAB TECHNICIAN EXAM
NEWEST 2025/2026 ACTUAL EXAM WITH COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (100% VERIFIED ANSWERS)
|ALREADY GRADED A+| ||PROFESSOR VERIFIED||
Testing machine shall hold the peak value of the maximum load
within ______ accuracy - ANSWER-1%
ASTM Standard dealing with proper capping methods -
ANSWER-C617
The procedure for capping enables concrete cylinders to meet the
standard's requirements for ____ and ____ - ANSWER-
Planeness and Perpendicularity
equipment needed for the capping process include ____, ____
devices, and ____ pots - ANSWER-plates, alignment, melting
Plates for neat cement and high-strength gypsum plaster caps
should be made of ____, ____, ____, or ____ - ANSWER-glass,
metal, granite, diabase
,2|Page
Sulfur mortar cap plates should be formed against _____ or
_____ - ANSWER-metal or stone
The purpose of the guide bar or bullseye level is that caps remain
perpendicular to the axis of the cylinder within _____ degrees -
ANSWER-.5
to avoid accidents during reheating, use melting pots that have
_____ _____ - ANSWER-peripheral heating
The technician should use a stiff layer of _____ to cap fresh
concrete cylinders. - ANSWER-Neat Cement Paste
Hardened concrete cylinders should be capped with _____ _____
_____ _____, _____ _____ _____, or _____ _____. - ANSWER-
high strength gypsum paste, neat cement paste or sulfur mortar
Plaster of Paris and Portland Cement are examples of suitable
high-strength plasters. True or False? - ANSWER-False- They are
not suitable
, 3|Page
Sulfur mortars and high strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or _____;
whichever is greater. - ANSWER-5000 psi or 35 MPa or the
cylinder's strength
The cement paste should be applied to the freshly molded
cylinders from _____ to ______ hours after molding. This is to
allow ______ of the concrete specimen. - ANSWER-2 to 4, setting
The strength of the cement paste depends on: Choose all that
apply:
a) water-cement ratio
b) time
c) equipment used
d) type of cement - ANSWER-a, b, d
A slight twisting motion will help eliminate _____ and air _____
when the capping plate is placed onto the mound of paste. -
ANSWER-excess paste, voids
