Lesson 1/Practice Exercise Answers
ANSWER SHEET FOR PRACTICE EXERCISE
Lesson 1
Learning Event
1.
1
2.
WT = Ww
Ws
1
3.
VT =Vs + Vw + V2
1
4.
1
5.
True
1
6.
Gravel
1
7.
Moisture causes it to lose strength
1
8.
Gravel
= 16 percent
Sand
= 78 percent
Fines
= 6 percent
2
9.
Sand
2
10.
c
2
11.
D60 = 2.7
D10 = .2
Cu = D60/D10 = 2.7/.2 = 13.5
2
12.
D30 = 1.1
2
Cc = (D30)2/D60 x D10 = 1.21/.54 = 2.24
2
13.
c
2
14.
d
3
22
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