Quiz 4

Question 1

All exterior footings shall be placed a minimum of ____ inches below the undisturbed ground.

Answer 1

12

Question 2

A two-story conventional light frame dwelling is to be constructed in an area where the load-bearing value of the soil is 2,000 psf. What is the minimum required width of the concrete footings?

Answer 2

12 inches

Question 3

Air entrainment for concrete subjected to weathering, when required for locations other than garage floors with a steel troweled finish, shall have a total air content of ____ minimum and ____ maximum.

Answer 3

5%

7%

Question 4

On graded sites where structures are placed adjacent to slopes steeper than 1:3 the top of any exterior foundation wall shall extend a minimum of ____ above the elevation of the street gutter or other approved drainage discharge point.

Answer 4

12 inches plus 2 percent

Question 5

A 9-foot-high plain masonry foundation wall is subjected to 7 feet of unbalanced backfill. If the soil class is GC, what is the minimum required wall thickness?

Answer 5

12 inches solid grouted

Question 6

The minimum required thickness for concrete spread footing is what?

Answer 6

6 inches

Question 7

A dwelling unit located in an area with an air freezing index of 3500 is constructed with frost-protected shallow foundation. What is the minimum required horizontal insulation R-value at the corners of the foundation?

Answer 7

11.2

Question 8

An 8-foot-high 9.5 inches thick concrete foundation walll is subjected to 6 feet of unbalanced backfill. If the soil class is GP, what is the minimum vertical reinforcement?

Answer 8

NONE

Question 9

The maximum permitted slope for the bottom surface of footings shall be?

Answer 9

1:10

Question 10

Where a permanent wood foundation wall system is used, the wall shall be supported by a minimum ____ footing plate resting on gravel or crushed stone fill a minimum of ___ in width.

Answer 10

2 inch by 8 inch

16 inches

Question 11

Where wood studs having an Fb value of 1320 are used in a wood foundation wall, the minimum stud size shall be ____ and the maximum stud spacing shall be ____ on center.

Answer 11

2 inches by 6 inches

16 inches

Question 12

Anchor bolts used to attach wood sill plates to foundation walls shall be spaced a maximum of ___ on center.

Answer 12

6 feet

Question 13

Where masonry veneer is used, ICF foundation walls shall extend a minimum of ___ above adjacent finished grade.

Answer 13

4 inches

Question 14

In order to use frost protected shallow foundations, the monthly mean temperature of the building must be maintained at a minimum of what?

Answer 14

64 degrees

Question 15

Unless grading is prohibited by physical barriers, lots shall be graded away from the foundation with a minimum fall of ___ within the first ____.

Answer 15

6 inches

10 feet

Question 16

What are the minimum and maximum footing projections for a concrete footing having a thickness of 8 inches?

Answer 16

2 inches, 8 inches

Question 17

Concrete used in basement slab shall have a minimum compressive strength of ____ where a severe weathering potential exist.

Answer 17

2,500 psi

Question 18

Where the foundation wall supports a minimum of _____ of unbalanced back fill, back fill shall not be placed against the wall unit the wall has sufficient strength and has been anchored to the floor above or has been sufficiently braced.

Answer 18

4 feet

Question 19

In the absence of a complete geotechnical evaluation to determine the soil’s characteristics clayey sand material shall be assumed to have a presumptive load-bearing value of what?

Answer 19

2,000 psf