____ are devices that convert alternating or bidirectional current flow into direct or unidirectional current flow.
a. Transformers
b. Rectifiers
c. Capacitors
d. Inverters
b. Rectifiers
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Aero Serve, Inc. manufactures cleaning nozzles for reverse pulse jet dust collectors. The company spent $40,000 on a production control system that will increase profits by $11,096 per year for 5 years. The rate of return per year on the investment is closest to:
(a) 20% (b) 16% (c) 12% (d) Less than 11%
Market failure:
a. Commonly occurs when social environmental costs exist. b. Commonly occurs when externalities exist. c. Commonly occurs when market prices are not equal to full economic costs. d. a and b above. e. All of the above.
Which type of electrical drawing shows the relative physical location of the devices but does not aid in understanding the electrical operation?
A. single-line drawing B. pictorial diagram C. schematic diagram D. ladder diagram
When dealing with capacitors, the insulating material is called a dielectric.
Answer the following statement true (T) or false (F)