With the shift to industrialization and wage labor, which of the following became essential for survival, especially for workers?
a. access to productive land
b. good weather
c. constant employment
d. access to local barter economies
c. constant employment
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Dexcon Technologies, Inc. is evaluating two alternatives to produce its new plastic filament with tribological (i.e., low friction) properties for creating custom bearings for 3-D printers. The estimates associated with each alternative are shown below. Using a MARR of 20% per year, which alternative has the lower present worth?
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The refrigerant lines for single zone mini-split air conditioners are usually connected by:
A) Flare fittings. B) SAE compression fittings. C) Reflok fittings. D) Brazed connections.
The AC compressor clutch is being checked to see if it is engaged. Technician A says that if the drive belt is moving,the compressor is working. Technician B says that the compressor will often "click" when it is energized and deenergized. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
The lecture/discussion method of teaching should be used when the subject matter deals with skill development or how-to information.