LESSON 12
PRACTICE EXERCISE
The following items will test your knowledge of the material covered in this
lesson. There is only one correct answer for each item. When you complete
the exercise, check your answers with the answer key. If you answer any
items incorrectly, go back to the part of the lesson that contains the
information involved and study again.
1.
What
does a newly cast metal act as to an older similar metal?
A.
Acid.
B.
Cathode.
C.
Electrolyte.
D.
Anode.
2.
What could you use to prevent material from building up in the
pipeline?
A.
Corrosion inhibitor.
B.
Scraper.
C.
Electrical currents.
D.
Sacrificial anodes.
3.
What
is used to protect the pipeline from stray electrical current?
A.
Mitigation bonds.
B.
Sacrificial anodes.
C.
Protective coverings.
D.
Corrosion inhibitors.
4.
When testing coupled and welded pipelines with compressed air, what do
personnel pressurize the line at to the closed gate?
A.
75 lbs per square inch.
B.
80 lbs per square inch.
C.
85 lbs per square inch.
D.
90 lbs per square inch.
5.
What form is
used for reporting all leaks when patrolling the
pipeline?
A.
DA Form
2404.
B.
DA Form
5456-R.
C.
DA Form
1712-R.
D.
DA Form
1714
LESSON 13
Slating
OVERVIEW
12-111
QM 5099
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