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Basic Electricity

Subject : engineering
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The thermocouple uses which method for creating potential energy?

2. What is resistance?

3. What is capacitance in electrical terms?

4. What is an electromagnet?

5. What types of protective tapes are used?

6. What is a characteristic of a fixed resistor?

7. What is dielectric strength?

8. What are the names of two of the six primary methods of producing a voltage?

9. To what measurement do the conductor mills refer?

10. What makes electrons flow?

11. What does static electricity do?

12. How are the capacitors connected when the combined capacitance equals a sum of all the capacitors?

13. What wire measurement is commonly used in the U.S.?

14. How is capacitance determined?

15. What are the two generic methods to eliminate static electricity from metal objects?

16. What results when current is run through a material with high resistance?

17. What do electrical charges need to cause a fire or explosion?

18. What is the term used when a magnetic field produced by coil 1 created a current in coil 2?

19. What is the name for electrical resistance of insulation?

20. What is true about a dry cell?

21. What is the purpose of a raceway?

22. When reading resistance color codes - what does the fourth band indicate?

23. What cannot be transformed to higher or lower potential differences?

24. Which type of cell can be recharged?

25. What is an arrangement of materials that create a potential difference by chemistry?

26. How do you read resistor color codes?

27. What is the unit of measurement of resistance?

28. What is the unit of measurement of potential difference?

29. What is the difference between AC and DC?

30. What is needed for electric heating elements and the filaments of light bulbs?

31. What is the term for doing work at the rate of joule per second?

32. What is the relationship between magnetism and electricity?

33. What is the relationship of conductor size and length to resistance?

34. What is a property of inductors in electrical circuits?

35. In most applications - what remains constant if the current remains constant and flows in one direction?

36. What is a rigid metal conduit?

37. Why is the transformer important to AC electricity?

38. What do we call the process of replacement of vapor above a liquid with a nonflammable gas?

39. What determines whether a spark can be produced?

40. What is a common measure of wire diameter?

41. What is the relationship between cells and batteries?

42. What is a type of capacitor?

43. How do static charges distribute themselves?

44. What is a characteristic of insulators?

45. What is produced when an alternator rotates 360 electrical degrees through a magnetic field?

46. What does a transformer transform?

47. What does a third band of brown mean?

48. What does resistance produce?

49. Identify the blueprint symbol for capacitors.

50. What makes electrons flow?