How Did the Depth at Which Gold and Silver Deposits

question 17

Multiple Choice

How did the depth at which gold and silver deposits were buried impact the mining process?

• A) It took much longer for individual prospectors to get rich than they had anticipated.
• B) Big businesses with access to industrial mining equipment displaced individual prospectors.
• C) Individual prospectors quickly gave up mining and returned to their homes.
• D) The federal government took control of the mining industry.

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Definitions:

Motor Starter

An electrical device that controls the use of electrical power to equipment, specifically to start and stop motors.

No-voltage Drop-out

A safety feature in electrical devices that causes them to turn off or disengage when the supply voltage drops below a certain level.

Two-wire Control

A control system that utilizes two conductors to connect an electrical device to a power source for operation.

Mechanically Held

Describes devices or components that are kept in position through mechanical means rather than magnetic or adhesive forces.