194 Chapter 7 Length and Length-Related Parameters
- Investigate the volume capacity of a barrel of oil in gal-
lons, cubic feet, and cubic meters. Also, determine
the volume capacity of a bushel of agricultural products
in cubic inches, cubic feet, and cubic meters. Write a
brief memo to your instructor discussing your findings.
- Investigate the volume capacity of a barrel of oil in gal-
- Measure the outside diameter of a flagpole or a street-
light pole by first wrapping a piece of string around the
object to determine its circumference. Why do you
think the flagpole or the streetlight pole is designed to
be thicker at the bottom near the ground than at the
top? Explain your answer.
- Measure the outside diameter of a flagpole or a street-
- Measure the width and the length of a treadmill machine.
Discuss what some of the design factors are that deter-
mine the appropriateness of the values you measured.
- Measure the width and the length of a treadmill machine.
- Collect information on the standard sizes of automo-
bile tires. Create a list of these dimensions. What do
the numbers indicated on a tire mean? Write a brief
memo to your instructor discussing your findings.
- Collect information on the standard sizes of automo-
- Visit a hardware store and obtain information on the
standard size of the following items.
a. Screws
b. Plywood sheets
c. PVC pipes
d. Lumber
Create a list with both the actual and the nominal sizes.
- Visit a hardware store and obtain information on the
- Using just a yardstick or a measuring tape, open the
classroom door 35 degrees.You cannot use a protractor.
- Using just a yardstick or a measuring tape, open the
- This is a group project. Determine the area of each class
member’s right hand. You can do that by tracing the
profile of everyone’s fingers on a white sheet of paper and
using any of the techniques discussed in this chapter to
compute the area of each hand. Compile a data bank
containing the areas of the right hands of each person in
class. Based on some average, classify the data into small,
medium, and large. Estimate how much material (outer
leather and inner lining) should be ordered to make
100,000 gloves. How many spools of thread should be
ordered? Describe and /or draw a diagram of the best way
to cut the hand profiles from sheets of leather to mini-
mize wasted materials.
- This is a group project. Determine the area of each class
- 3 0. This is a group project. Given a square kilometer of
land, how many cars can be parked safely there? Deter-
mine the appropriate spacing between cars and the
width of drive lanes. Prepare a diagram showing your
solution, and write a brief report to your instructor dis-
cussing your assumptions and findings.
7.31. Estimate the length of tubing used to make a bicycle
rack on your campus.
- Determine the base area of an electric steam iron.
- 3 3. Determine the area of an incandescent 100-W light bulb.
- 3 4. Obtain a trash bag and verify its listed volume.
- Discuss the size of a facial tissue, a paper towel, and a
sheet of toilet paper.
- Discuss the size of a facial tissue, a paper towel, and a
- 3 6. Estimate how much silver is needed to make a four-
piece set of silverware containing teaspoons, table-
spoons, forks, and knives (16 pieces in all). Discuss
your assumptions and findings.
- Calculate the second moment of area of a 2-in.-
diameter shaft about thex–xandy–yaxes, as shown.
- Calculate the second moment of area of a 2-in.-
Problem 7.37
x x
y
y
R
- 3 8. Calculate the second moment of area for a 2 6 piece
of lumber about thex–xandy–yaxes, as shown. Visit
a hardware store and measure the actual dimensions of
a typical 2 6 piece of lumber.
h
w
x x
y
y
Problem 7.38
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