Below are the answers key for the Textbook Assignment: Chapter 2, "Batteries " from the Module 1 — Introduction to Matter, Energy, and Direct Current in Navy Electricity and Electronics Training Series (NEETS) . Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.
1. B. To change chemical energy to electrical energy
2. A. Electrodes, electrolyte, container
3. C. solution acting upon the electrode
4. D. mounting for the electrode
5. A. negative electrode
6. B. positive electrode
7. D. Electrochemical action
8. A. The secondary cell can be recharged by passing current through it in the proper direction
9. C. The circuit resistance and the internal resistance of the cell
10. B. Increasing the size of the electrodes
11. C. A positive charge caused by a loss of electrons
12. B. A negative charge caused by an excess of electrons
13. A. The material of the cathode combines with the negative ions to form a new substance.
14. D. Each of the above
15. B. To supply a return path for current
16. D. The secondary cell
17. C. Lead peroxide, sponge lead, sulfuric acid, and water
18. C. Connecting the negative terminal of a voltage source to the cathode of the cell and the positive terminal of the voltage source to the anode of the cell
19. A. A, C, E, H
20. D. B, D, F, G
21. A. Fully charged
22. D. Increases internal resistance, thereby decreasing the output voltage
23. A. Venting the cell
24. A. Shelf life is reduced
25. C. Paste
26. B. Zinc container
27. D. In a refrigerated space
28. C. Both A and B above
29. B. It has a very stable output voltage
30. B. Connecting the anode and cathode together without a load
31. D. All the above
32. A. Alkaline cell
33. A. Power requirement
34. C. Lithium organic
35. D. All of the above
36. D. Emergency equipment batteries
37. B. Silver-cadmium
38. A. One
39. B. Parallel
40. B. (a) 1.5 volts (b) 5/8 ampere
41. A. Series
42. C. (a) 7.5 volts (b) 1/8 ampere
43. D
44. C. Series-parallel
45. C. (a) 9 volts (b) 1/4 ampere
46. B. Check the technical manual for information on the specific type of battery
47. B. Enough so the float will rise without entering the suction bulb
48. C. Fresh water
49. D. Distilled water
50. A. Terminals should be electrically connected together before transporting a battery
51. D. Flush with fresh water
52. B. 200 hr
53. A. 15 amperes
54. C. Normal
55. D. Used after electrolyte is added to a dry-shipped battery
56. B. Used periodically as part of a maintenance routine
57. C. Used to keep a battery at full charge while the battery is idle
58. A. Used in emergency only
59. D. Decrease the charging rate
60. A. Steady gassing
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