MACHINE SHOP CALCULATION - OD1640 - LESSON 2/PE 2
PRACTICAL EXERCISE 2
1.
Instructions
Read the scenario and respond to the requirements that follow the scenario.
2.
Scenario
In practical exercise 1 you developed a list of mathematical problems
involving the addition, subtraction, multiplication, and division of
fractions and decimals; and conversion of fractions to decimals and decimals
to fractions.
You have administered these problems to the two former
machinists who will be used as a second shift in the machine shop. Now you
want to test their knowledge of machine shop calculations involving the
conversion of linear measurements from the English to the metric system and
vice-versa, and the solving of problems using ratio, proportion, and
trigonometry.
You have, therefore, developed a list of mathematical
problems that you feel will assist you in determining their knowledge.
3.
Requirement
Below is the list of mathematical problems that you have developed.
Prepare
an answer sheet by solving these problems.
a.
If 2.54 centimeters equals 1 inch, how many centimeters are there in a
piece of flat metal stock that is 3 yards 1 foot and 6 inches long?
b.
at is the length, in inches, of a piece of round stock that is 3
meters and 15 centimeters long?
c.
brass rod was cut into five lengths: 4 1/4 inch, 3 1/2 inch, 6 1/2
inch, 18 3/4 inch, and 6 3/4 inch. How long was the rod in centimeters if
1/8 inch was wasted in each cut?
d.
Use the rules of conversion in paragraphs 3b and 3c, Lesson 2, Task 1
and solve the following problems:
(1) Convert 1/32 inch to millimeters.
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