Chapter 7 Engineering Fundamentals:
An Introduction to Engineering
1. If you were to measure the cross section of a 2 x 4 you would find it to be 38 millimeters wide
by 90 millimeters tall. What are the numbers “2 x 4” called?
a. Actual size
b. Nominal size
c. Approximate size
d. Rough size
Analysis:
2. If you were to measure the cross section of a 2 x 4 you would find it to be 38 millimeters wide
by 90 millimeters tall. What are the numbers “38 millimeters wide by 90 millimeters tall”
called?
a. Actual size
b. Nominal size
c. Finished size
d. Total size
Analysis:
3. Length is one of the seven fundamental dimensions.
4. Which is greater?
a. 1 kilometer
b. 1 mile
Analysis:
5. Which is greater?
a. 1 yard
b. 1 meter
Analysis:
6. Which is greater?
a. 10 inches
b. 10 centimeters
Analysis:
7. Which of the following coordinate systems is most common?
a. rectangular
b. cylindrical
c. spherical
d. polar
Analysis:
8. Another name for rectangular coordinate system is
a. polar coordinate system.
b. cylindrical coordinate system.
c. square coordinate system.
d. Cartesian coordinate system.
9. How many square centimeters are there in a square meter?
a. 10
b. 100
c. 1000
d. 1329
Analysis:
10. How many cubic centimeters are there in a cubic meter?
a. 1
b. 3444
c. 100
d. 100,000
Analysis:
11. How many meters are there in one centimeter?
a.
2
10
b.
3
10
c.
2
10
d.
3
10
12. How many centimeters are there in one meter?
a.
2
10
b.
3
10
c.
2
10
d.
3
10
Analysis:
13. How many meters are there in one millimeter?
a.
2
10
b.
3
10
c.
2
10
d.
3
10
Engineering Fundamentals, 5th ed. Chapter 7
Saeed Moaveni
Analysis:
14. How many millimeters are there in one meter?
a.
2
10
b.
3
10
c.
2
10
d.
3
10
15. While changing oil in your motorcycle you notice that you need 2 quarts and 6 ounces of oil,
but you’re using a metric graduated cylinder to measure the oil. How many milliliters of oil do
you need?
________ ml
16. You walk
km3
east and then
km4
north. What is your total distance traveled?
a.
km3
b.
km4
c.
km5
d.
km7
17. You walk
km3
east and then
km4
north. What is your total displacement?
a.
km3
b.
km4
c.
km5
d.
km7
Analysis:
18. You walk
km3
west and then
km4
headed
60
north of east. What is your total
displacement?
a.
km6.2
b.
km6.3
c.
km5
d.
km6.5
e.
km7
Analysis:
19. A car travels
km560
while consuming 60 liters of petrol (gasoline). What is the car’s gas
mileage in mpg?
________ mpg
20. A 50 kg woman wearing high heels balances on one heel. If the heel is circular and has a
diameter of
, what pressure does she exert on the floor? (Express your answer in KPa).
________ KPa
21. A 2 meter tall vertical stack of firewood casts a 4 meter shadow on horizontal ground. What
is the angle of the sun in the horizon?
a.
8
b.
12
c.
45
d. 70°
Analysis:
22. A motorcycle has a magnet attached to the rim of its front wheel. The front tire has a
diameter of
cm60
. A magnetic pickup is attached to the front forks and receives an electronic
pulse each time the magnet passes by. How far has the motorcycle traveled when the pickup has
received 10 pulses?
a.
cm600
b.
ft600
c.
cm1885
d.
m885.1
23. There are 100 Hectares in a square kilometer. How many square kilometers are there in 12.5
Hectares?
a.
16
1
b.
8
1
c.
4
1
d.
2
1
Analysis:
24. If an object is completely submerged in a fluid, its buoyant force is always equal to
a. the weight of the object.
b. the volume of the fluid displaced.
c. the weight of the fluid displaced.
d. the density of the fluid displaced.
Analysis:
25. The second moment of area provides information about an object’s
a. ability to resist bending.
b. ability to resist wear.
c. ability to absorb light.
d. ability to reflect light.
Analysis:
26. A certain unsharpened cylindrical #2 pencil is ½ centimeter in diameter and 25 centimeters
long. What is the pencil’s surface area?
a. .3 cm2
b. 77 cm2
c. 8 cm2
d. 40 cm2
Analysis:
27. A certain unsharpened cylindrical #2 pencil is ½ centimeters in diameter and 25 centimeters
long. What is the pencil’s volume?
a. .25 cm3
b. 5 cm3
c. 55 cm3
d. 32 cm3
Analysis:
Engineering Fundamentals, 5th ed. Chapter 7
Saeed Moaveni
28. A rubber ball has a diameter of eight centimeters. What is its surface area?
a. 88 cm2
b. 100 cm2
c. 200 cm2
d. 50 cm2
Analysis:
29. A rubber ball has a diameter of eight inches. What is its volume?
a. 100 cm2
b. 270 cm2
c. 250 cm2
d. 33.3 cm2
Analysis:
30. Your neighbor is digging a hole in his back yard for an in-ground swimming pool. The
rectangular hole is 7 meters wide, 14 meters long, and 4 meters deep. If his pickup truck can
haul one cubic meter, how many trips will it take him to haul all of the dirt away?
a. 10584
b. 3528
c. 392
d. 44
Engineering Fundamentals, 5th ed. Chapter 7
Saeed Moaveni
Analysis: