CSLB Concrete C8 License Practice Test #2
Questions With Correct Answers
The maximum size of the conduit or pipe shall NOT exceed _______ of the
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thickness of the concrete. - CORRECT ANSWER✔✔-1/3
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Which of the following tests for concrete is conducted at the site/field? -
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CORRECT ANSWER✔✔-Color Test | |
Explanation: |
Rest of the above are laboratory tests.
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If the concrete compressive strength specified is less than 3600 psi, it has the
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option of being tested at 28 days and is able to accept the concrete if it attains
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___________ percentage of the minimum required strength. - CORRECT
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ANSWER✔✔-85
If the admixtures are used in concrete for the purpose of delayed setting and
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hardening of concrete, they are called _____________? - CORRECT ANSWER✔✔-
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Retarders
Which of the following are the general types of vibrating needles that are in use?
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- CORRECT ANSWER✔✔-ALL ANSWERS!
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,-Internal vibrators |
-Immersion vibrators |
-Surface vibrators |
Concrete proportioning is done based on the facilities available at the site. Which
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are the general proportioning methods used for concrete? - CORRECT
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ANSWER✔✔-ALL OF THESE | |
-Surface area method | |
-Mix design based on flexural strength
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-Maximum destiny method | |
The minimum cementitious material that is required for concrete bridging deck is
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______________lbs/cu yd. - CORRECT ANSWER✔✔-675 | | | |
The amount of free water used in concrete shall not exceed ____________
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pounds per cubic yard of concrete. - CORRECT ANSWER✔✔-310
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Explanation:
If the SCM are added, it can be increased to 20 pounds per each required 100
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pounds of cementitious material in excess of 550 pounds per cubic yard.
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If the concrete curbs are to be constructed over the existing pavement,
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_______________ are used to fix them to pavement. - CORRECT ANSWER✔✔-| | | | | | | | | |
Steel dowels |
, Which of the following is NOT an example of blended cement? - CORRECT
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ANSWER✔✔-Combination of silica fume and chlorine fluoride | | | | | |
Explanation:
Blended cement is a combination of either Type || or Type V cement with any of
| | | | | | | | | | | | | | | |
the SCM
|
Which of the following is a line at which the face of the curb meets the top of the
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payment? - CORRECT ANSWER✔✔-Control Joint
| | | | |
Which of the following is NOT used as concrete chemicals? - CORRECT
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ANSWER✔✔-Abrasion bonding compound | |
Explanation:
Concrete curing compound and polymer bonding agent are both concrete
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chemicals.
The admixtures that are used in concrete to improve durability in freeze/thaw
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environments are ________________. - CORRECT ANSWER✔✔-Air entrainment
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admixtures
The fly ash which is used as SCM has the specific gravity ___________________. -
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CORRECT ANSWER✔✔-1.9 - 2.8
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Questions With Correct Answers
The maximum size of the conduit or pipe shall NOT exceed _______ of the
| | | | | | | | | | | | | |
thickness of the concrete. - CORRECT ANSWER✔✔-1/3
| | | | | |
Which of the following tests for concrete is conducted at the site/field? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-Color Test | |
Explanation: |
Rest of the above are laboratory tests.
| | | | | |
If the concrete compressive strength specified is less than 3600 psi, it has the
| | | | | | | | | | | | | |
option of being tested at 28 days and is able to accept the concrete if it attains
| | | | | | | | | | | | | | | | |
___________ percentage of the minimum required strength. - CORRECT
| | | | | | | | |
ANSWER✔✔-85
If the admixtures are used in concrete for the purpose of delayed setting and
| | | | | | | | | | | | | |
hardening of concrete, they are called _____________? - CORRECT ANSWER✔✔-
| | | | | | | | |
Retarders
Which of the following are the general types of vibrating needles that are in use?
| | | | | | | | | | | | | |
- CORRECT ANSWER✔✔-ALL ANSWERS!
| | | |
,-Internal vibrators |
-Immersion vibrators |
-Surface vibrators |
Concrete proportioning is done based on the facilities available at the site. Which
| | | | | | | | | | | | |
are the general proportioning methods used for concrete? - CORRECT
| | | | | | | | | |
ANSWER✔✔-ALL OF THESE | |
-Surface area method | |
-Mix design based on flexural strength
| | | | |
-Maximum destiny method | |
The minimum cementitious material that is required for concrete bridging deck is
| | | | | | | | | | | |
______________lbs/cu yd. - CORRECT ANSWER✔✔-675 | | | |
The amount of free water used in concrete shall not exceed ____________
| | | | | | | | | | | |
pounds per cubic yard of concrete. - CORRECT ANSWER✔✔-310
| | | | | | | |
Explanation:
If the SCM are added, it can be increased to 20 pounds per each required 100
| | | | | | | | | | | | | | | |
pounds of cementitious material in excess of 550 pounds per cubic yard.
| | | | | | | | | | |
If the concrete curbs are to be constructed over the existing pavement,
| | | | | | | | | | | |
_______________ are used to fix them to pavement. - CORRECT ANSWER✔✔-| | | | | | | | | |
Steel dowels |
, Which of the following is NOT an example of blended cement? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-Combination of silica fume and chlorine fluoride | | | | | |
Explanation:
Blended cement is a combination of either Type || or Type V cement with any of
| | | | | | | | | | | | | | | |
the SCM
|
Which of the following is a line at which the face of the curb meets the top of the
| | | | | | | | | | | | | | | | | |
payment? - CORRECT ANSWER✔✔-Control Joint
| | | | |
Which of the following is NOT used as concrete chemicals? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-Abrasion bonding compound | |
Explanation:
Concrete curing compound and polymer bonding agent are both concrete
| | | | | | | | | |
chemicals.
The admixtures that are used in concrete to improve durability in freeze/thaw
| | | | | | | | | | | |
environments are ________________. - CORRECT ANSWER✔✔-Air entrainment
| | | | | | |
admixtures
The fly ash which is used as SCM has the specific gravity ___________________. -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-1.9 - 2.8
| | | |
