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






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






3. Identify the blueprint symbol for resistors.






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






5. Identify the blueprint symbol for capacitors.






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






7. How do static charges distribute themselves?






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






9. What is power?






10. What is a rigid metal conduit?






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






12. What do transducers do in electrical terms?






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






14. What makes electrons flow?






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






16. How many kinds of poles do magnets have?






17. What makes electrons flow?






18. What is a way to classify wires and cables?






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






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






21. What does a third band of brown mean?






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






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






24. What does static electricity do?






25. What is true about a dry cell?






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






27. What does a transformer transform?






28. What is induction?






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






30. Which type of cell can be recharged?






31. Identify the general blueprint symbol for inductors.






32. What is the relationship between cells and batteries?






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






34. What is a switch that operates by electricity?






35. What instrument measures voltage?






36. What is a conductor?






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






38. What is a characteristic of a fixed resistor?






39. What is the use of the electromagnet?






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






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






42. How is capacitance determined?






43. What is the measure of potential difference?






44. What is voltage?






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






46. What is the relationship between magnetism and electricity?






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






48. How are the capacitors connected when the combined capacitance equals less than the lowest- value capacitor?






49. How do you read resistor color codes?






50. What types of protective tapes are used?