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UNIT 1—MECHANICS IN THE WORLD OF AGRICULTURE
MULTIPLE CHOICE
1. How many people does each American farmer feed?
|
a.
|
79
|
c.
|
254
|
|
b.
|
144
|
d.
|
2 million
|
ANS: B
144
PTS: 1
2. Renewable natural resources are provided by _____.
|
a.
|
agriculture
|
c.
|
nature
|
|
b.
|
technology
|
d.
|
nonfarm workers
|
ANS: C
nature
PTS: 1
COMPLETION
1. ____________________ has played a major role in the rise of
agricultural production efficiency.
ANS: Mechanization
PTS: 1
2. Agriculture is a(n) ____________________ industry upon which all
people depend.
ANS: basic
PTS: 1
3. Two inventions that had a profound influence on the settling of
this country were the ____________________ and the ____________________.
ANS:
steel plow, cotton gin
cotton gin, steel plow
PTS: 1
MATCHING
Match the following term with the correct
definition below.
|
a.
|
agriculture
|
d.
|
agriscience
|
|
b.
|
renewable natural resources
|
e.
|
agricultural mechanics
|
|
c.
|
efficiency
|
||
1. ability to produce with minimum waste of
materials, energy, and time
2. activities concerned with plants and animals
and the related supplies, services, products, and marketing related to plants,
animals, and the environment
3. the selection, maintenance, operation,
selling, and use of power units, machinery, structures, and utilities used in
agriculture
4. the science involved with the industry of
agriculture
5. resources provided by nature that can be
replaced or renewed
1. ANS: C PTS: 1
2. ANS: A PTS: 1
3. ANS: E PTS: 1
4. ANS: D PTS: 1
5. ANS: B PTS: 1
Match the following inventors with their
machines.
|
a.
|
Cyrus McCormick
|
c.
|
Thomas Jefferson
|
|
b.
|
Eli Whitney
|
d.
|
John Deere
|
6. reaper
7. iron plow
8. steel plow
9. cotton gin
6. ANS: A PTS: 1
7. ANS: C PTS: 1
8. ANS: D PTS: 1
9. ANS: B PTS: 1
SHORT ANSWER
1. Why are renewable natural resources considered to be part of
agriculture?
ANS:
Without management, renewable resources
would be consumed at a faster rate than they are replenished by nature.
Agriculture has expanded to involve the management of these resources.
PTS: 1
2. What are some of the uses for basic agricultural products? List at
least five.
ANS:
food, oil, lumber, feed, seed (more than
five available)
PTS: 1
3. What are some examples of renewable resources? Name at least two.
ANS:
forests, fish in streams, lakes, and
oceans, and wildlife such as game animals
PTS: 1
4. Why was the invention of the steel plow so important?
ANS:
It allowed early farmers to break up the
tough sod that had previously prevented pioneers from cultivating the rich
prairie soil.
PTS: 1
5. What opportunity did the invention of the cotton gin open up for
America?
ANS:
It opened up the entire southern portion
of the nation for cultivation of upland cotton.
PTS: 1
6. What is most of today’s agricultural production machinery based
on?
ANS:
The internal combustion engine
PTS: 1
7. How is agricultural mechanics different in undeveloped countries
and why?
ANS:
Agricultural mechanics is different in
undeveloped countries because they must utilize simple, tough, reliable small
machines to improve agriculture. This is because they have limited resources
such as capital, fuel for internal combustion engines, and a limited amount of
trained farmers.
PTS: 1
8. What will increase the efficiency of American agriculture in the
future?
ANS:
Computer-controlled machines and robotics
will increase efficiency.
PTS: 1
9. Define agricultural mechanics.
ANS:
Agricultural mechanics is the selection,
operation, maintenance, service, selling, and use of power units, machines,
equipment, structures, and utilities used in agriculture.
PTS: 1
10. Why was the invention of refrigeration so important to the
development of agriculture?
ANS:
It allowed food to be stored for a longer
time. Produce could be shipped all across the country.
PTS: 1
11. List three careers that are applications of agricultural
mechanics.
ANS:
Any three of the following: An engineer
designs tractors and other farm and ranch machines; a forester keeps chain saws
and other equipment going; a construction engineer builds processing plants,
farm buildings, and agriculture facilities; an electrician installs climate
controls, silo unloaders, and milling equipment; a soil conservationist works
to control soil erosion; a hardware store employee locates repair parts for
agricultural tools and machines; a welder performs repairs on farm machines;
and a mechanic repairs farm equipment and machines.
PTS: 1
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