LESSON 1
PRACTICE EXERCISE
The following items will test your grasp of the material covered in
this lesson.
There is only one correct answer for each question.
When you have completed the exercise, check your answers with the
answer key that follows.
If you answer any item incorrectly, study
again that part of the lesson which contains the portion involved.
1.
What is the unit of area for pressure measurement in the United
States?
___
A.
Inch-pounds.
___
B.
Square inch.
___
C.
Foot-pounds.
___
D.
Square foot.
2.
What happens to a body of liquid when a rise in its temperature
takes place?
___
A.
It
decreases
in size.
___
B.
It
increases
in size.
___
C.
It
stays the
same.
___
D.
It
builds up
static pressure.
3.
How much of the energy transmitted through a hydraulic system is
received at the output end?
___
A.
88 percent.
___
B.
99 percent.
___
C.
Practically none.
___
D.
Practically all.
4.
What formula is used to find the amount of pressure exerted?
___ A.
___ B.
___ C.
___ D.
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