LESSON 4
PRACTICE EXERCISES
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The following items will test your grasp of the material covered
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in this lesson. There is only one correct answer for each item.
When you complete the exercise, check your answer with the
answer key that follows.
If you answer any item incorrectly,
study again that part of the lesson which contains the portion,
involved
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1.
Why is it necessary to perform systematic checks of the
laboratory at the end of the day or session?
A. To be prepared for emergencies.
B.
To prevent hazards from occurring while the lab is
unoccupied.
C. To maintain professionalism.
2.
What is the main use of the fire blanket?
A.
Put out fires on personnel clothing.
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B.
Smother grease fires on the floor.
C.
Stop vapor leaks.
3.
What should
personnel
do
before
entering
the
mobile
laboratory?
A.
Wash their hands.
B.
Purge the laboratory.
C.
Open the rear door.
4.
Which of the following
can
be
controlled
by
properly
storing combustible materials?
A.
Waste.
B.
Unauthorized access.
C.
Flammable vapors.
5.
What system test must be periodically performed?
A.
B.
Electrical.
C.
Gas alarm.
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