Answered: Which is a disadvantage of wind energy?…

Which is a disadvantage of wind energy? O a. It does not use any water. O b. It needs more maintenance. O c. It has less impact to global warming. O d. It does not use any fuel.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.7MCQ: Consider Figure 3.5. Match the following, those on the left to those on the right. (i) Im (a)...

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Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.

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Which is a disadvantage of wind energy?
O a. It does not use any water.
O b. It needs more maintenance.
O c. It has less impact to global warming.
O d. It does not use any fuel.

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Select the correct answer for each of the following statements Book Source: Electricity 3 | 10th Edition ISBN-13:9781111646738ISBN:1111646732Authors:Jeffrey J. Keliik UNIT 1: Operating Principles of DC Generators 1. A generator a. changes electrical energy to mechanical energy. b. changes mechanical energy to electrical energy. c. is always self-excited. d. is always separately excited. 2. One of the following is not essential in generating a DC voltage: a. a magnetic field b. a conductor c. slip rings d. relative motion 3. Commutating poles are a. fastened to the center of the commutator. b. located midway between the main poles. c. secondary poles induced by cross-magnetizing the armature. d. used to regulate the voltage at the armature. 4. The winding on an interpole is a. made of many turns of fine wire. b. wound in a direction opposite to that of the armature winding. c. connected in series with the armature load. d. connected across the generator terminals. (Ctrl)
Question 13 of 15 Determine: The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.², 800°F, at a rate of 8 x 104 lb/h. Seventy percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.² and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.² and is pumped to 500 lbf/in.² before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To -60°F, po - 14.7 lbf/in.² Steam generator 6 7p=89% P₁ = 500 lbffin,² T₁ = 800°F Heat exchanger Pump m₂ ND 1 (y) (1-y) √n process 7=85% P4=500 lbf/in.2 saturated liquid (a) the magnitude of the process heat production rate, in Btu/h. P3=10…
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← Energy meter & Electrodyna... A 230V, 12A, 1-6 Energy meter makes 216 revolutions in 5 minutes at half load rated voltage and unity p.f. If the meter constant is 2000 rev/kwhr, then determine whether the meter runs faster or slower then actual and also the percentage error?
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A 6 ampere supply has a frequency of 25 Hz. Find the instantaneous value of current a. at 0.00986sec from zero going to the positive direction. b. at 0.00986 sec from zero going to the negative direction. c. at 986 degrees. Show complete solutions.
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