LESSON 4
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
B.
To prevent hazards from occurring while the lab is
Deleted: €
unoccupied. (page 4-2, para 1b)
2.
A. Put out fires on personnel clothing.
(page 4-5, para 6)
3.
B. Purge the laboratory.
(page 4-3, para 4a)
4.
C.
Flammable vapors. (page 4-3, para 3)
5.
C.
Gas alarm. (page 4-4, para 4d)
4-7
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