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. The thermocouple uses which method for creating potential energy?






2. How do you read resistor color codes?






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






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






5. What is a switch that operates by electricity?






6. What is power?






7. What does a moving charge produce?






8. To what measurement do the conductor mills refer?






9. If the fourth color band is gold - this means the measured value of the resistance is what percent of the marked value?






10. What is the difference between AC and DC?






11. What is a common form used in conductors?






12. What is the basic law of magnetic force?






13. What does static electricity do?






14. What is the relationship between cells and batteries?






15. What do junction boxes protect?






16. What can permanently break down a capacitor?






17. What does a transformer transform?






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






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






20. What is insulation resistance?






21. Which material has the lowest resistance at ordinary temperatures?






22. If the fourth color band is silver - this means the measured value of the resistance is what percent of the marked value?






23. How is the heat production measured in a resistor?






24. What is the measure of potential difference?






25. What does an object have if a magnetic field acts on it?






26. What is the unit of measurement of resistance?






27. Identify the general blueprint symbol for inductors.






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






29. Where does the thumb point in both Left-Hand Rules?






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






31. Identify the blueprint symbol for capacitors.






32. Which way is the current going in the circuit shown?(electron flow)






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






34. What is true about a dry cell?






35. What do transducers do in electrical terms?






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






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






38. What is a type of mechanical transducer?






39. When does a DC circuit oppose current flow?






40. What is the type of cable composed of many fine wires?






41. Where do the fingers point in both Left-Hand Rules?






42. What does resistance produce?






43. What is dielectric strength?






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






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






46. What does a third band of brown mean?






47. What is a conductor?






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






49. What type of circuit has one path of follow through a load?






50. Given R=E / I and the following information - plug in the data and solve the problem for resistance. 1.5 volt walkman battery - 0.02 amps of current