Reinforced Concrete Practice Test 1
30 Questions I 410 Attempts I Created By dduarte 1347 days ago| Q.1) |
A strength test shall be the average of the strengths of ________ cylinders made from the same sample of concrete and tested at ____ days or at test age designated for determination of f’c. |
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| Q.2) | Beams, girders, or slabs supported by columns or walls shall not be cast or erected until concrete in the vertical support members is no longer plastic. |
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| Q.3) | A standard hook has a ___ degree bend plus 12 db (bar diameters) extension at the free end of bar |
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| Q.4) |
The minimum clear spacing between parallel bars in a layer shall be db, but not less than ______ inch. |
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| Q.5) |
All nonprestressed bars shall be enclosed by lateral ties, at least No. 3 in size for longitudinal bars No. ___ or smaller, and at least No. 4 in size for No. 11, No. 14, No. 18 and bundled longitudinal bars. |
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| Q.6) |
Except for ________ steel, steel reinforcement with rust, mill scale, or a combination of both shall be considered satisfactory, provided the minimum dimensions (including height of deformations) and weight of a hand-wire-brushed test specimen comply with applicable ASTM specifications referenced in 3.5 |
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| Q.7) |
When total quantity of a given class of concrete is less than ________ cubic yards, strength tests are not required when evidence of satisfactory strength is submitted to and approved by the building official. |
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| Q.8) |
Tolerance for longitudinal location of bends and ends of reinforcement shall be +/- _____ inches |
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| Q.9) | Concrete in an area represented by core tests shall be considered structurally ________ if the average of three cores is equal to at least 85 percent of f’c and if no single core is less than ______ percent of f’c. |
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| Q.10) | Form supports for prestressed concrete members shall not be removed until sufficient ________ has been applied to enable prestressed members to carry their dead load and anticipated construction loads. |
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| Q.11) |
In reference to removal of forms, shores, and reshoring, sufficient strength shall be demonstrated by ________ _________ considering proposed loads, strength of forming and shoring system, and concrete strength data. |
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| Q.12) |
In reference to cold weather requirements all concrete materials and all reinforcement, forms, fillers, and ground with which concrete is to come in contact shall be free from ______. |
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| Q.13) |
Conduits, pipes, and sleeves shall be permitted to be considered as replacing structurally in compression the displaced concrete provided they are of uncoated or galvanized iron or ______ not thinner than standard schedule 40 steel pipe. |
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| Q.14) | Samples for strength tests of each class of concrete placed each day shall be taken not less than once a day, nor less than once for each _______ cubic yards of concrete. |
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| Q.15) |
What is the minimum cover (in inches) for reinforcement in concrete cast against and permanently exposed to earth? |
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| Q.16) |
In reference to conduits and pipes embedded in concrete, conduit/pipe shall not be larger in outside dimension than ____ the overall thickness of slab, wall, or beam in which they are embedded. |
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| Q.17) | Procedures for protecting and curing concrete shall be improved when strength of field-cured cylinders at test age designated for determination of f’c is less than _____ percent of that of companion _________-cured cylinders. |
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| Q.18) |
Concrete (other than high-early strength) shall be maintained above _____ degrees F and in a moist condition for at least the first _____ days after placement, except when cured in accordance with 5.11.3 |
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| Q.19) |
Water shall be ______ from place of deposit before concrete is placed unless a ______ is to be used or unless otherwise permitted by the building official. |
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| Q.20) |
For the strength level of an individual class of concrete to be considered satisfactory, no individual strength test can fall below f’c by more than ______ psi when f’c is 5000 psi or less. |
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| Q.21) | Clear spacing between spirals shall not exceed ___ in., nor be less than ___ in. |
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| Q.22) |
What is the minimum cover (in inches) for primary reinforcement in a concrete beam not exposed to weather or in contact with the ground? |
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| Q.23) | For cast-in-place construction, size of spirals shall not be less than ____ in. diameter. |
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| Q.24) |
During hot weather, proper attention shall be given to ingredients, production methods, handling, placing, protection, and curing to prevent excessive concrete temperatures or water evaporation that could impair required _______ or serviceability of the member or structure. |
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| Q.25) |
For bundled bars, minimum concrete cover shall be equal to the equivalent diameter of the bundle, but need not be greater than ____ in.; except for concrete cast against and permanently exposed to earth, where minimum cover shall be 3 inches. |
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| Q.26) | In spirally reinforced or tied reinforced compression members, clear distance between longitudinal bars shall be not less than 1.5db nor less than ______ in. |
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| Q.27) | Bars larger than No. ____ shall not be bundled in beams. |
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| Q.28) | Reinforcement partially embedded in concrete shall not be field _______, except as shown on the design drawings or permitted by the engineer. |
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| Q.29) | What is the tolerance on minimum concrete cover for an 8 inch thick reinforced concrete wall? |
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| Q.30) |
High-early-strength concrete shall be maintained above ______ degrees F and in a moist condition for at least the first ____ days, except when cured in accordance with 5.11.3 |
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