Test your basic knowledge |

Basic Electricity

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






2. What is power?






3. Why is the transformer important to AC electricity?

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






5. What is a DC circuit characteristic?






6. What is the difference between AC and DC?






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






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






9. What is insulation resistance?






10. What can permanently break down a capacitor?






11. When does a DC circuit oppose current flow?






12. What determines whether a spark can be produced?






13. Which of the following materials is NOT a good conductor?






14. What is a switch that operates by electricity?






15. What does static electricity do?






16. What is the relationship between magnetism and electricity?






17. Given E=I X R and the following information - plug in the data and solve the problem for voltage. 0.015 ohms - 800 amps of current






18. What is a rigid metal conduit?






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






20. Which of the following is a type of resistor?






21. What type of circuit has two or more paths for current to follow?






22. What is a common form used in conductors?






23. A resistor is color coded brown - green - orange. What is its resistance?






24. The dry cell is what method for creating potential energy?






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






26. What is the unit of measurement of resistance?






27. What is dielectric strength?






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






29. What is the purpose of resistors in electrical circuits?






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






31. What is 'difference in potential(potential difference) - per unit of charge - between two points'?






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






33. What are the common units of measurement for round and square conductor cross - sections?






34. What does Ohm's Law represent?






35. What is a conductor?






36. What determines the resistance of a resistor?






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






38. Identify the blueprint symbol for resistors.






39. What is the basic law of magnetic force?






40. What makes electrons flow?






41. What is the measure of potential difference?






42. How many kinds of poles do magnets have?






43. What does a transformer transform?






44. What is resistance?






45. What is a characteristic of insulators?






46. What is the purpose of capacitors in electrical circuits?






47. What is a common cause of static electricity in a shop?






48. What is the term for two or more cells attached together?






49. What is a type of capacitor?






50. What information do the Left-Hand Rules provide?