Unit 6 Quiz

Which of the following statements is not true? O a. All renewable energy sources are conventional energy source. O b. Some renewable energy resources depend on the weather O c. Renewable energies will never run out O d. Renewable energies cause less pollution than fossil

renewable energy conversion

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)

Refer to this Figure 1. Determine the minimum value of IBthat will produce saturation.

Select the correct answer for each of the following statements Book Source: Electricity 3 | 10th Edition ISBN-13:9781111646738 ISBN:1111646732 Authors:Jeffrey J. Keljik

Consider the circuit shown in Figure P1.68. a. Which elements are in series?b. Which elements are in parallel? c. Apply Ohm’s and Kirchhoff’s laws to solve for R x.

In this assignment, a back pressure cogeneration plant process (see Figure 1) producing district heat (DH) and electricity will be designed based on given supply and return water temperatures and DH production. Personal initial values are listed in Appendix 1, plant and component efficiency assumptions and pressure drops are listed in Table 1. Using the given and chosen values, • determine pressure, temperature, specific enthalpy, and mass flow rate at each state point • calculate net electric power, fuel consumption, and efficiencies for electricity and CHP production • draw the process in a T,s-diagram (boiler pressure drop is assumed to occur entirely in superheaters) fuel air HPPH Boll 7 Efficiencies 6 E1 E12 Pressure drops FWP Table 1. Efficiencies and pressure losses E1 DA 5 Turbine E2 2 DHC 3 € supply return CP Figure 1. A process diagram for a back pressure CHP plant; G = generator, B = boiler, DA = deaerator (open feed heater), DHC = district heating condenser, HPPH = high…

Select the correct answer for each of the following statements Book Source: Electricity 3 | 10th Edition ISBN-13:9781111646738 ISBN:1111646732 Authors:Jeffrey J. Keljik

Don't use ai to answer I will report your answer Solve it Asap with explanation and calculation.

Briefly explain the working of following power plants a) Thermal Power plant b) Hydel power plant

3. Explain the environmental impacts of Geothermal power plant