ANSWER KEY AND FEEDBACK
Correct Answer and Feedback
In the United States the square inch is the measurement used
when expressing applied force to an area. (Page 5)
It increases in size.
Temperatures have an effect on liquids. Applied heat causes
liquids to expand slightly, while cold has the opposite
effect. (Page 11)
A hydraulic system is very efficient. There is virtually no
loss except that which may be in the mechanical linkage.
Pressure exerted can be determined by dividing force by area.
wrong combination of gases could cause an
You should use only air and pure nitrogen. (Page
You may use either vegetable-base or mineral-base hydraulic
fluids; however, you must not mix them or switch from one to
the other. (Page 14)