LESSON 10
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 valve types are used at the foot of upgrade slopes to allow fuel
to flow in one direction only by means of a hinged disk or clapper?
A.
Rising-stem gate valves.
B.
Swing check valves.
C.
D.
Beveled valves.
2.
What action should you take if the packing rings in the figure eight
blinds are worn?
A Shut them off.
.
B Separate them.
.
C Lubricate them.
.
D Replace them.
.
3.
Which of the following fittings provides a connection from one diameter
of pipe to some smaller diameter of pipe?
A Reducers.
.
B Elbows.
.
C Standard tees.
.
D Reducing tees.
.
4.
A split leak clamp is designed to temporarily repair a leak caused by
A A small hole in the pipe.
.
B A split in the pipe.
.
C The initial coupling.
.
D Too much pipe.
.
12-95
QM 5099
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