AUTRY TECH DRAFTING/DESIGN

Read Chapter 10 page 183. Answer the question below and enter it into OPEN LMS under 

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1. The posts used in post foundations are commonly made of _____.

 

A. ​masonry

B. steel

C. pressure -treated wood

D. All of the above.

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2. A wood foundation is particularly suitable in _____.

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A. a garage where the distance is too great to span with floor joists

B. areas where the sea level is high

C. warmer climates where freezing of the ground is in frequent

D. None of the above.

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3. For a wood foundation, the trench excavated for a structure with a crawl space should be _______ deep.

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A. less than 10″

B. at least 12 ″

C. 9″

D. 6″

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4. When using a wood foundation for a basement, _____.

 

A. the site is excavated 12″ deeper than the regular depth

B. a basement sump is installed in poorly drained soils

C. no foundation drainage is necessary

D. All of the above.

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5. Nails used in wood foundations should be made of _____ .

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A. hot-dipped zinc- coated steel

B. copper

C. silicon bronze

D. All of the above.

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6. The floor joists or trusses of a wood foundation are placed on the  _____ .

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A. double top plate of the foundation wall

B. inside of the foundation wall

C. basement floor slab

D. None of the above.

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7. Backfilling  for a wood foundation should be started filling _____ .

A. be fore the floor joists or trusses are installed

B. before the polyethylene film is applied .

C. after the basement floor has cured and the first floor is installed

D. All of the above.

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8. The ability of a concrete or masonry basement wall to resist earth pressure is determined by _____

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A. support from cross walls

B. the size of the floor joists

C. the live load of the structure.

D. All of the above.

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9. The distance from the top of the basement floor to the bottom of the floor joists above should be no less than _____ .

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A. 5′

B. 6′

C. 7′

D. 8′

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10. Basement load-bearing crosswalls should be attached to exterior walls by _____ .

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A. metal tie bars

B. a masonry bond

C. anchor bolts

D. All of the above.

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11. If a wood sill bears on the outer and inner face shells of a block foundation wall, _____ .

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A. cap the top course of block using 4″ solid block

B. capping may be omitted

C. cores in the top course are filled with concrete or mortar

D. the top course maybe capped with reinforced concrete masonry bond beam.

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12. Damp-proofing concrete block basement walls should be done by  _____.

A. painting the outside of the blocks with oil base paints

B. applying a 1/4″ coat of fire clay

C. applying two coats of cement-base paint, or a heavy coat of hot tar

D. All of the above.

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13. To eliminate water damage to basements in wet or poorly drained soils, _____.

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A. install a check valve in the floor drain to keep water from flowing in through the drain.

B. reinforce the floor slab to resist uplift from ground water pressure

C. install a sump pump to take away any water that seeps in

D. All of the above.

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14. To support a 4″ masonry wall above an opening, the smallest piece of steel angle that can be used for a 10′-6″ span is_____.

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A. 1/2″×5/16″

B.4″×4″×5/16″

C.4″×4″×3/8″

D.6″×4″×3/8″

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15. A float is used in finishing concrete to _____.

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A. embed the large aggregate just beneath the surface

B. remove any slight imperfections, lumps, and voids to produce a flat surface.

C. consolidate mortar at the surface in preparation for final steel-troweling

D. All of the above.

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16. When ordering concrete, figure that _____ cubic feet of every yard will be used.

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A.24

B.25

C.26

D.27

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17. Concrete slabs are  normally placed on a base of compacted sand _____ thick.

A. 4″ to 6″

B. 5″ to 7″

C. 6″ to 8″

D. 9″ to 10″

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18.  The actual size of a typical “ concrete block ” ( hollow concrete masonry unit ) is _____.

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A. 7-5/8″×7-5/8″×15-5/8″

B. 8″×8″×16″

C. 8-5/8″×8-5/8″×16-5/8″

D. 9″×9″×18″

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