CONCRETE TEST PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ 6,000 to 9,000 vpm.
Answer: A vibrator generating _____ should be used for concrete with
primarily medium aggregate.
◍ Additional strength factors.
Answer: Curing conditions Moist cure will result in higher strengthAge
Concrete gains strength with age Rate of gain will almost level off after
some time Typically, concrete considered full strength at 28 days
◍ How does ACI define a tension-controlled beam?.
Answer: Et>= 0.005 in the tension steel at nominal strength
◍ typical range of w/c's for a concrete beam.
Answer: between 0.40 and 0.60
◍ max. comp. strain at failure.
Answer: 0.003
◍ Hooke's Law Equation.
Answer: stress = modulus * strain
◍ 1 1/2.
Answer: When using an internal vibrator, the distance between insertion
points should be approximately ____ time the radius of the field of action.
◍ 1 percent.
Answer: Each _____ % of entrapped air can reduce compressive strength by
3% to 5% at a constant water-cement ratio
◍ an increased size of field, an ability to handle products with high mass, low
, cost.
Answer: An advantage of using normal-frequency vibrators is _____.
◍ what is w/c?.
Answer: water-cement ratio
◍ eccentric weight mass, speed of vibrator, radius from center of rotation to
the center of gravity of the eccentric.
Answer: The force of compression impulses by a vibrator is determined by
_____ .
◍ Precast concrete.
Answer: _____ concrete cast into forms and allowed to set prior to
placement in a final location.
◍ Force Equation causing steel bar to yield.
Answer: F=FyAs
◍ tamping, vibration, rodding.
Answer: Consolidation is achieved through _____.
◍ square, round, rectangular.
Answer: A common column shape is ___.
◍ Why is tension controlled more favorable.
Answer: gives a warning
◍ 6.
Answer: Grade beams must be at least _____ " thick and 14 " deep.
◍ 2.
Answer: When using an internal vibrator, an operator should maintain a
_____ " space between the vibrator head and form.
◍ as the reinforcement ratio decreases, does the strain in tension steel increase
or decrease?.
Answer: it increases. Less reinforcement means the steel must stretch more
to carry the same tension force.
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ 6,000 to 9,000 vpm.
Answer: A vibrator generating _____ should be used for concrete with
primarily medium aggregate.
◍ Additional strength factors.
Answer: Curing conditions Moist cure will result in higher strengthAge
Concrete gains strength with age Rate of gain will almost level off after
some time Typically, concrete considered full strength at 28 days
◍ How does ACI define a tension-controlled beam?.
Answer: Et>= 0.005 in the tension steel at nominal strength
◍ typical range of w/c's for a concrete beam.
Answer: between 0.40 and 0.60
◍ max. comp. strain at failure.
Answer: 0.003
◍ Hooke's Law Equation.
Answer: stress = modulus * strain
◍ 1 1/2.
Answer: When using an internal vibrator, the distance between insertion
points should be approximately ____ time the radius of the field of action.
◍ 1 percent.
Answer: Each _____ % of entrapped air can reduce compressive strength by
3% to 5% at a constant water-cement ratio
◍ an increased size of field, an ability to handle products with high mass, low
, cost.
Answer: An advantage of using normal-frequency vibrators is _____.
◍ what is w/c?.
Answer: water-cement ratio
◍ eccentric weight mass, speed of vibrator, radius from center of rotation to
the center of gravity of the eccentric.
Answer: The force of compression impulses by a vibrator is determined by
_____ .
◍ Precast concrete.
Answer: _____ concrete cast into forms and allowed to set prior to
placement in a final location.
◍ Force Equation causing steel bar to yield.
Answer: F=FyAs
◍ tamping, vibration, rodding.
Answer: Consolidation is achieved through _____.
◍ square, round, rectangular.
Answer: A common column shape is ___.
◍ Why is tension controlled more favorable.
Answer: gives a warning
◍ 6.
Answer: Grade beams must be at least _____ " thick and 14 " deep.
◍ 2.
Answer: When using an internal vibrator, an operator should maintain a
_____ " space between the vibrator head and form.
◍ as the reinforcement ratio decreases, does the strain in tension steel increase
or decrease?.
Answer: it increases. Less reinforcement means the steel must stretch more
to carry the same tension force.
