Answer the following statement(s) true (T) or false (F)
1. Coal-burning power plants are the predominant source of electricity generation in the U.S.
2. The total asset value of electrical facilities in the U.S. is around $8 billion and the industry’s
annual sales are around $3 billion, according to the U.S. Department of Energy.
3. An efficient and safe method of meeting peak demands needs is to transport power into the high
demand area from another part of the grid where demand is lower.
4. The generating capacity of the smart grid is decentralized.
5. A smart meter is the only device required to make a smart grid home more energy efficient.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. FALSE
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In a high-pressure system _____.
a. low-pressure ductwork may be used for air distributed from a VAV box to branch ducts b. air pressure is low up to the VAV box c. trunk ducts are usually made of flex duct d. return air ducts must be high-pressure ductwork
Was the Bt toxin effective in eliminating the caterpillars?
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The city of Valley View, California, is considering various proposals regarding the disposal of used tires. All proposals involve shredding, but the benefits differ in each plan. An incremental B/C analysis was initiated, but the engineer conducting the study left recently. Using a 20-year study period and an interest rate of 8% per year, (a) fill in the blanks in the incremental B/C columns of the table. (b) Which alternative should be selected?
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The basic designs of AC compressors include ___________, ___________, and ___________
A) Piston, vane, and scroll B) Radial, piston, and vane C) Balanced, piston, and scroll D) Fixed scroll, moveable scroll, and piston