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






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






3. What is a type of capacitor?






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






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






6. What is another name for an inductor?






7. 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






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






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






10. The generator is what method of creating potential energy?






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






12. What determines the resistance of a resistor?






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






14. What makes electrons flow?






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






16. What is power?






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






18. Identify the general blueprint symbol for inductors.






19. Identify the blueprint symbol for resistors.






20. What is a characteristic of insulators?






21. How do you read resistor color codes?






22. What do junction boxes protect?






23. How is capacitance determined?






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






25. What is an electromagnet?






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






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






28. What does static electricity do?






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






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






31. How do static charges distribute themselves?






32. What does a moving charge produce?






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






34. What is a switch that operates by electricity?






35. What is a wire classification?






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






37. What makes electrons flow?






38. What types of protective tapes are used?






39. Why is the transformer important to AC electricity?

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40. What do transducers do in electrical terms?






41. To what measurement do the conductor mills refer?






42. What is the measure of potential difference?






43. What is a common form used in conductors?






44. What is a characteristic of a fixed resistor?






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






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






47. How many kinds of poles do magnets have?






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






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






50. What instrument measures voltage?