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Difficulty: HardTechnological Innovations of the First and Second Industrial Revolutions

��In a steam-driven factory, the power is distributed from a central engine by means of shafts, belts, and pulleys. This requires machines to be crowded together near the main shafts. The introduction of the electric motor, however, allows each machine to have its own independent power source. Factories can now be constructed with spacious, well-lit layouts, and machines can be placed in the natural sequence of the manufacturing process.”

—Report of the United States Commissioner of Labor, 1895

The technological transition described in the passage most directly facilitated which of the following developments in the late nineteenth and early twentieth centuries?

  1. A
    The initial shift from cottage industries to the centralized factory system.
  2. B
    The rapid expansion of steam-powered railway networks to integrate internal national markets.
  3. The implementation of assembly-line manufacturing and the rise of mass production.Answer
  4. D
    The replacement of coal by petroleum as the primary energy source for heavy industrial smelting.

Answer

The implementation of assembly-line manufacturing and the rise of mass production.
The correct answer is correct because the transition from steam power (distributed via shafts and belts from a single engine) to electric motors (attached to individual machines) allowed for flexible, linear factory layouts. This spatial reorganization directly enabled the development of assembly-line manufacturing and mass production in the late nineteenth and early twentieth centuries.

Step-by-Step Solution

1
Analyze the stimulus passage to identify the key technological change being described.
The passage describes a shift from a centralized steam engine power distribution system to individual electric motors for each machine.
Understanding the technological transition is necessary to contextualize the historical period and phase of industrialization.
2
Categorize the technologies mentioned into the phases of the Industrial Revolution.
Steam power is the core energy source of the First Industrial Revolution (circa 1750–1850), while electric motors and electrification characterize the Second Industrial Revolution (circa 1870–1914).
Differentiating between the First and Second Industrial Revolutions is essential for identifying the correct timeline and subsequent economic developments.
3
Evaluate the consequences of individual electric motors on factory organization.
Individual electric motors allowed machines to be placed in the sequence of production rather than clustered around a central steam shaft, leading directly to linear assembly lines and mass production.
Connecting the technological innovation of electrification to its long-term economic and organizational consequences yields the correct answer.

Key Concept

The transition from the First Industrial Revolution (steam and coal) to the Second Industrial Revolution (electricity and steel) and its impact on the organization of factory production.
Estimated Time:2m 0s
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Technological Innovations of the First and Second Industrial Revolutions

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