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






2. What is the relationship between cells and batteries?






3. What is an electromagnet?






4. What is a type of capacitor?






5. What is resistance in electrical terms?






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






7. Solve the equation: 35 volts / 0.70 amperes= ? ohms - to find resistance.






8. What does Ohm's Law represent?






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






10. How do you read resistor color codes?






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






12. What determines whether a spark can be produced?






13. What is a characteristic of insulators?






14. What is insulation resistance?






15. What is a characteristic of a fixed resistor?






16. What do we call the ability to do work?






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






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






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






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






21. Identify the blueprint symbol for capacitors.






22. What is dielectric strength?






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






24. The thermocouple uses which method for creating potential energy?






25. What makes electrons flow?






26. What is the difference between AC and DC?






27. What is the use of the electromagnet?






28. What is another name for an inductor?






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






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






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






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






33. What is induction?






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






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






36. To what measurement do the conductor mills refer?






37. What instrument measures voltage?






38. What is the basic law of magnetic force?






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






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






41. What is the measure of potential difference?






42. What is true about a dry cell?






43. What does static electricity do?






44. How is capacitance determined?






45. What is power?






46. 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






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






48. What is voltage?






49. What makes electrons flow?






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