LESSON 3
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
B.
1/2 inch (page 4, para 6)
2.
D.
Sodium fluoride (page 5, Part C, para a(3))
3.
D.
From the ground (page 2, para 2b)
4.
C.
Plug it with a creosote plug (page 4, para 3b)
SS0439
3-8