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 is the purpose of resistors in electrical circuits?






2. What does static electricity do?






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






4. What is a DC circuit characteristic?






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






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






7. What instrument measures voltage?






8. What must be large enough to carry the largest current likely to occur?






9. What is insulation resistance?






10. To what measurement do the conductor mills refer?






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






12. Identify the blueprint symbol for resistors.






13. Identify the general blueprint symbol for inductors.






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






15. What can permanently break down a capacitor?






16. What is a switch that operates by electricity?






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






18. What makes electrons flow?






19. What determines whether a spark can be produced?






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






21. Identify the blueprint symbol for capacitors.






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






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






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






25. What is an electromagnet?






26. What does a third band of brown mean?






27. What is a rigid metal conduit?






28. What is power?






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






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






31. What makes electrons flow?






32. What does resistance produce?






33. What is true about a dry cell?






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






35. Why is the transformer important to AC electricity?

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






37. How do you read resistor color codes?






38. What is the use of the electromagnet?






39. What is the unit of measurement of resistance?






40. What is the measure of potential difference?






41. What is the purpose of a raceway?






42. What is a common measure of wire diameter?






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






44. What does a first band of white mean?






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






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






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






48. What is a wire classification?






49. What is voltage?






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