Reinforced Concrete Module Quizzes and Solutions.
Which of the following publications is most useful for a Special Inspector? Module #1 correct
answers ACI 318 / Answer found in module
A ____ is a horizontal member that transfers loads laterally. correct answers Beam / See
Illustration 1D in module
Plain concrete refers to: correct answers Concrete with less than the minimum amount of
reinforcement / Answer found in module
A beam is primarily subject to _____ while a column is primarily subject to ______. correct
answers Flexure, compression / Answer found in module
The best place to look up definitions in ACI 318-14 is: correct answers Chapter 2 / Answer
found in module
Foundations cast at the same level as the soil grade are known as: Module #1 correct answers
Shallow / Answer found in Module. See Illustration 1F.
Concrete is a mixture of Module#2 correct answers Aggregate, sand, cement and water, / Answer
found in Module. See Illustration 2B.
Portland cement must conform to _______ and normal-weight aggregate must conform to
_______ in all concrete. correct answers ASTM C150, ASTM C33, / See ACI 318, 26.4.1.1.1
and 26.4.1.2.1
Structural normal weight concrete MUST contain/produce correct answers Potable or non-
potable water, cementitious material, and aggregate conforming to ASTM C33 or an approved
alternative equivalent. / Answer found in Module
Hydration correct answers Is an exothermic (heat producing), chemical reaction that begins when
water and cement are combined. / Answer found in Module
The maximum allowable nominal aggregate size for concrete used in a 6 inch thick slab is:
correct answers 2 inches / See ACI 318, 26.4.2.1.a.4.
What must air entrainment admixtures conform to? correct answers ASTM C260 / See ACI 318,
26.4.1.4.1.a.3.
Adding water to a concrete mix will: correct answers Decrease the compressive strength /
Answer found in Module
A concrete mix design specifies a water/cement ratio of 0.45 maximum. When batched, a
particular load has a water/cement ratio of 0.38. Which of the following statements is true?
, Module#2 correct answers The compressive strength will likely be higher than normal. / See the
module about Mix Designs and Water/Cement Ratio
An ASTM A615 #7 bar has the diameter of Module#3 correct answers 7/8 of an inch (#22) /
Answer found in Module
A low-alloy steel bar conforms to correct answers ASTM A706 / ACI 318, 20.2.1.3
Plain reinforcement is acceptable for use in structural concrete provided that correct answers It is
used only in spiral reinforcing / ACI 318, 20.2.1.1
A grade 60 bar has correct answers A minimum yield strength of 60,000 psi / Answer found in
Module. See also ASTM A615
Which bar has the largest nominal diameter? correct answers #9 bar, A and B plain bar and
deformed bar / See Illustration 3L, as well as ASTM A615.
Standard hooks for deformed bars in tension are either ____ or _____. correct answers 90
degrees or 180 degrees / ACI 318, Table 25.3.1
Bundled bars can have a maximum of ____ bars bundled together. correct answers 4 / See ACI
318, 25.6.1.1.
The largest allowable rebar diameter allowed in bundled bars in beams is: correct answers #11 /
See ACI 318, 25.6.1.3.
Which type of rebar has the highest tensile strength? correct answers Grade 80 / Answer found in
Module. See also ASTM A615
Standard hooks for deformed bars in tension are either ____ or _____. correct answers 90
degrees or 180 degrees / ACI 318, Table 25.3.1
Bundled bars can have a maximum of ____ bars bundled together. correct answers 4 / See ACI
318, 25.6.1.1.
The largest allowable rebar diameter allowed in bundled bars in beams is: correct answers #11 /
See ACI 318, 25.6.1.3.
Which type of rebar has the highest tensile strength? correct answers Grade 80 / Answer found in
Module. See also ASTM A615
Why is most rebar deformed? correct answers It provides better adherence to concrete / Answer
found in module
The minimum bend diameter of a number 9 standard hook in tension is: Module#3 correct
answers 9 inches / ACI 318, Table 25.3.1
Which of the following publications is most useful for a Special Inspector? Module #1 correct
answers ACI 318 / Answer found in module
A ____ is a horizontal member that transfers loads laterally. correct answers Beam / See
Illustration 1D in module
Plain concrete refers to: correct answers Concrete with less than the minimum amount of
reinforcement / Answer found in module
A beam is primarily subject to _____ while a column is primarily subject to ______. correct
answers Flexure, compression / Answer found in module
The best place to look up definitions in ACI 318-14 is: correct answers Chapter 2 / Answer
found in module
Foundations cast at the same level as the soil grade are known as: Module #1 correct answers
Shallow / Answer found in Module. See Illustration 1F.
Concrete is a mixture of Module#2 correct answers Aggregate, sand, cement and water, / Answer
found in Module. See Illustration 2B.
Portland cement must conform to _______ and normal-weight aggregate must conform to
_______ in all concrete. correct answers ASTM C150, ASTM C33, / See ACI 318, 26.4.1.1.1
and 26.4.1.2.1
Structural normal weight concrete MUST contain/produce correct answers Potable or non-
potable water, cementitious material, and aggregate conforming to ASTM C33 or an approved
alternative equivalent. / Answer found in Module
Hydration correct answers Is an exothermic (heat producing), chemical reaction that begins when
water and cement are combined. / Answer found in Module
The maximum allowable nominal aggregate size for concrete used in a 6 inch thick slab is:
correct answers 2 inches / See ACI 318, 26.4.2.1.a.4.
What must air entrainment admixtures conform to? correct answers ASTM C260 / See ACI 318,
26.4.1.4.1.a.3.
Adding water to a concrete mix will: correct answers Decrease the compressive strength /
Answer found in Module
A concrete mix design specifies a water/cement ratio of 0.45 maximum. When batched, a
particular load has a water/cement ratio of 0.38. Which of the following statements is true?
, Module#2 correct answers The compressive strength will likely be higher than normal. / See the
module about Mix Designs and Water/Cement Ratio
An ASTM A615 #7 bar has the diameter of Module#3 correct answers 7/8 of an inch (#22) /
Answer found in Module
A low-alloy steel bar conforms to correct answers ASTM A706 / ACI 318, 20.2.1.3
Plain reinforcement is acceptable for use in structural concrete provided that correct answers It is
used only in spiral reinforcing / ACI 318, 20.2.1.1
A grade 60 bar has correct answers A minimum yield strength of 60,000 psi / Answer found in
Module. See also ASTM A615
Which bar has the largest nominal diameter? correct answers #9 bar, A and B plain bar and
deformed bar / See Illustration 3L, as well as ASTM A615.
Standard hooks for deformed bars in tension are either ____ or _____. correct answers 90
degrees or 180 degrees / ACI 318, Table 25.3.1
Bundled bars can have a maximum of ____ bars bundled together. correct answers 4 / See ACI
318, 25.6.1.1.
The largest allowable rebar diameter allowed in bundled bars in beams is: correct answers #11 /
See ACI 318, 25.6.1.3.
Which type of rebar has the highest tensile strength? correct answers Grade 80 / Answer found in
Module. See also ASTM A615
Standard hooks for deformed bars in tension are either ____ or _____. correct answers 90
degrees or 180 degrees / ACI 318, Table 25.3.1
Bundled bars can have a maximum of ____ bars bundled together. correct answers 4 / See ACI
318, 25.6.1.1.
The largest allowable rebar diameter allowed in bundled bars in beams is: correct answers #11 /
See ACI 318, 25.6.1.3.
Which type of rebar has the highest tensile strength? correct answers Grade 80 / Answer found in
Module. See also ASTM A615
Why is most rebar deformed? correct answers It provides better adherence to concrete / Answer
found in module
The minimum bend diameter of a number 9 standard hook in tension is: Module#3 correct
answers 9 inches / ACI 318, Table 25.3.1
