7. Following are the answers to the problems that were introduced in Part B. Review and
compare to your answers.
A.
3/4-in plywood or 1- x 6-in boards
Problem 1.
C.
2- x 6-in or 2- x 4-in board
Problem 2
D.
2- x 4-in or 4- x 4-in board
Problem 3
D.
4- x 4-in or 2- x 4-in board
Problem 4.
C.
No. 8 or No. 9 annealed wire
Problem 5.
D.
99 sq ft
Problem 6.
Plan area = 33 x 3 = 99 sq ft
C.
320 cu FPH
Problem 7.
16 60
960
Mixer output =
x
x2=
x 2 = 160 x 2 = 320 cu FPH
6
1
6
B.
1.9 FPH
Problem 8.
189
189
R=
=
= 1.9 FPH
33 x 3
99
D.
356 psf
Problem 9.
9 ,000 R
9 ,000( 1.6 )
150 +
= 150 +
= 355.7, round to 356 psf
temperature
70
Problem 10. B.
492 psf
9 ,000 R
9 ,000( 1.9 )
150 +
= 150 +
= 492 psf
T
50
Problem 11. A.
14 in
Problem 12. C.
583.33 lb/lin ft
350 x 20
7 ,000
ULS =
=
= 583.33 lb/lin ft
12
12
Problem 13. C.
24 in
24
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