ICC CODES QUESTIONS AND ANSWERS
ACI 318
Which of the following publications is most useful for a Special Inspector?
Beam
A ____ is a horizontal member that transfers loads laterally.
Concrete with less than the minimum amount of reinforcement
Plain concrete refers to:
Flexure, compression
A beam is primarily subject to _____ while a column is primarily subject to ______.
Chapter 2
The best place to look up definitions in ACI 318-14 is:
Shallow
Foundations cast at the same elevation as the soil grade are known as:
Aggregate, sand, cement and water
Concrete is a mixture of
ASTM C150, ASTM C33
Portland cement must conform to _______ and normal-weight aggregate must conform to _______ in
all concrete.
Potable or non-potable water, cementitious material and aggregate conforming to ASTM C33
Structural normal weight concrete MUST contain/produce
Is an exothermic (heat producing), chemical reaction that begins when water and cement are combined
Hydration
2 inches
The maximum allowable nominal aggregate size for concrete used in a 6 inch thick slab is:
ASTM C260
What must air entrainment admixtures conform to?
Decrease the compressive strength
,Adding water to a concrete mix will:
The compressive strength will likely be higher than normal.
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?
7/8 of an inch (#22)
An ASTM A615 #7 bar has the diameter of
ASTM A706
A low-alloy steel bar conforms to
It is used only in spiral reinforcing
Plain reinforcement is acceptable for use in structural concrete provided that
A minimum yield strength of 60,000 psi
A grade 60 bar has
#9 plain bar, #9 deformed bar
Which bar has the largest nominal diameter?
90 degrees or 180 degrees
Standard hooks for deformed bars in tension are either ____ or _____.
4
Bundled bars can have a maximum of ____ bars bundled together.
#11
The largest allowable rebar diameter allowed in bundled bars in beams is:
Grade 80
Which type of rebar has the highest tensile strength?
It provides better adherence to concrete
Why is most rebar deformed?
9 inches
The minimum bend diameter of a number 9 standard hook in tension is:
Light coating of rust
Which of the following is permitted on reinforcing steel?
1-1/2 inches
,What is the minimum concrete cover for #5 bar in a cast-in-place, nonprestressed exterior wall?
-1/2 inch
The tolerance on concrete cover of reinforcement for a 14-inch cast-in-place basement wall with a
specified cover of 3 inches is:
1 inch
The stirrups of a cast-in-place prestressed concrete beam not exposed to weather or permanently cast
against earth should have a minimum concrete clearance of:
2 inches
What is the minimum clear spacing between #11 vertical bars in a boundary element in a wall that will
be cast using concrete with 1 inch nominal maximum aggregate?
54 inches
The minimum lap splice required for epoxy-coated #6 deformed spiral reinforcing that does not require
a hook is:
1-1/8 inch
The minimum clear distance required between a slab mat of #9 bars closely spaced together is when
3/4-inch aggregate concrete is used is:
1 in 6
What is the maximum slope for the inclined portion of an offset longitudinal bar in a column?
Plus or minus 3/8 of an inch in any direction.
Given: The contractor has placed #5 bars at 12 inches on-center horizontally and vertically along the
inside face of an 8-inch thick wall cast against earth. What reinforcing placement tolerances is the
contractor allowed?
+/- 1/2 an inch
Placement tolerances of #8 bars within a 24 inch thick footing are:
not permitted
As a general rule, lap splicing bars larger than No. 11 is
as indicated in the contract documents or as authorized by the licensed design professional
The splicing of reinforcing steel must be
is permitted if bars are in compression
Lap splices of No. 14 and No. 18 bars to No. 11 and smaller bars
125% of the grade strength of the bar
, A mechanical splice must achieve
125% of the grade strength of the bar
When welding a spliced connection, the contractor must achieve
Lap splicing individual bars within the bundle at staggered locations.
How should bundled bars be spliced?
12 inches
What is the minimum lap splice for lap splices within a column?
3/4-inch
What is the minimum specified concrete cover for #11 bar in a nonprestressed cast in place interior
wall?
Greater than 2.00
Concrete with the most severe sulfate exposure will be in contact with a percentage of soil containing
water-soluble sulfate:
50%
The maximum amount of slag conforming to ASTM C989 allowable in concrete exposed to very severe
freezing and thawing cycles where deicing chemicals are anticipated is:
7.5%
Air content required for a 5,000 psi, 3/8 inch aggregate mix of concrete exposed to very severe cycles of
freezing and thawing is:
2.5% - 6.5%
The range of air allowable in a 6,000 psi, 3/4 inch aggregate mix of concrete exposure class F1 is:
5,000 psi, .40 w/cm
The minimum psi required and maximum water/cement ratio required in concrete exposed to severe
corrosive environments, such as external sources of chlorides from deicing chemicals, is:
Is considered moderate exposure, a class C1
Concrete exposed to moisture but not external sources of chloride:
ASTM C260
Air-entraining admixtures must conform to:
0.45
What is the maximum water to cement ratio for plain concrete with an F3 exposure class?
ACI 318
Which of the following publications is most useful for a Special Inspector?
Beam
A ____ is a horizontal member that transfers loads laterally.
Concrete with less than the minimum amount of reinforcement
Plain concrete refers to:
Flexure, compression
A beam is primarily subject to _____ while a column is primarily subject to ______.
Chapter 2
The best place to look up definitions in ACI 318-14 is:
Shallow
Foundations cast at the same elevation as the soil grade are known as:
Aggregate, sand, cement and water
Concrete is a mixture of
ASTM C150, ASTM C33
Portland cement must conform to _______ and normal-weight aggregate must conform to _______ in
all concrete.
Potable or non-potable water, cementitious material and aggregate conforming to ASTM C33
Structural normal weight concrete MUST contain/produce
Is an exothermic (heat producing), chemical reaction that begins when water and cement are combined
Hydration
2 inches
The maximum allowable nominal aggregate size for concrete used in a 6 inch thick slab is:
ASTM C260
What must air entrainment admixtures conform to?
Decrease the compressive strength
,Adding water to a concrete mix will:
The compressive strength will likely be higher than normal.
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?
7/8 of an inch (#22)
An ASTM A615 #7 bar has the diameter of
ASTM A706
A low-alloy steel bar conforms to
It is used only in spiral reinforcing
Plain reinforcement is acceptable for use in structural concrete provided that
A minimum yield strength of 60,000 psi
A grade 60 bar has
#9 plain bar, #9 deformed bar
Which bar has the largest nominal diameter?
90 degrees or 180 degrees
Standard hooks for deformed bars in tension are either ____ or _____.
4
Bundled bars can have a maximum of ____ bars bundled together.
#11
The largest allowable rebar diameter allowed in bundled bars in beams is:
Grade 80
Which type of rebar has the highest tensile strength?
It provides better adherence to concrete
Why is most rebar deformed?
9 inches
The minimum bend diameter of a number 9 standard hook in tension is:
Light coating of rust
Which of the following is permitted on reinforcing steel?
1-1/2 inches
,What is the minimum concrete cover for #5 bar in a cast-in-place, nonprestressed exterior wall?
-1/2 inch
The tolerance on concrete cover of reinforcement for a 14-inch cast-in-place basement wall with a
specified cover of 3 inches is:
1 inch
The stirrups of a cast-in-place prestressed concrete beam not exposed to weather or permanently cast
against earth should have a minimum concrete clearance of:
2 inches
What is the minimum clear spacing between #11 vertical bars in a boundary element in a wall that will
be cast using concrete with 1 inch nominal maximum aggregate?
54 inches
The minimum lap splice required for epoxy-coated #6 deformed spiral reinforcing that does not require
a hook is:
1-1/8 inch
The minimum clear distance required between a slab mat of #9 bars closely spaced together is when
3/4-inch aggregate concrete is used is:
1 in 6
What is the maximum slope for the inclined portion of an offset longitudinal bar in a column?
Plus or minus 3/8 of an inch in any direction.
Given: The contractor has placed #5 bars at 12 inches on-center horizontally and vertically along the
inside face of an 8-inch thick wall cast against earth. What reinforcing placement tolerances is the
contractor allowed?
+/- 1/2 an inch
Placement tolerances of #8 bars within a 24 inch thick footing are:
not permitted
As a general rule, lap splicing bars larger than No. 11 is
as indicated in the contract documents or as authorized by the licensed design professional
The splicing of reinforcing steel must be
is permitted if bars are in compression
Lap splices of No. 14 and No. 18 bars to No. 11 and smaller bars
125% of the grade strength of the bar
, A mechanical splice must achieve
125% of the grade strength of the bar
When welding a spliced connection, the contractor must achieve
Lap splicing individual bars within the bundle at staggered locations.
How should bundled bars be spliced?
12 inches
What is the minimum lap splice for lap splices within a column?
3/4-inch
What is the minimum specified concrete cover for #11 bar in a nonprestressed cast in place interior
wall?
Greater than 2.00
Concrete with the most severe sulfate exposure will be in contact with a percentage of soil containing
water-soluble sulfate:
50%
The maximum amount of slag conforming to ASTM C989 allowable in concrete exposed to very severe
freezing and thawing cycles where deicing chemicals are anticipated is:
7.5%
Air content required for a 5,000 psi, 3/8 inch aggregate mix of concrete exposed to very severe cycles of
freezing and thawing is:
2.5% - 6.5%
The range of air allowable in a 6,000 psi, 3/4 inch aggregate mix of concrete exposure class F1 is:
5,000 psi, .40 w/cm
The minimum psi required and maximum water/cement ratio required in concrete exposed to severe
corrosive environments, such as external sources of chlorides from deicing chemicals, is:
Is considered moderate exposure, a class C1
Concrete exposed to moisture but not external sources of chloride:
ASTM C260
Air-entraining admixtures must conform to:
0.45
What is the maximum water to cement ratio for plain concrete with an F3 exposure class?
