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. Identify the general blueprint symbol for inductors.






2. What makes electrons flow?






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






4. What does a third band of brown mean?






5. How do you read resistor color codes?






6. What is the unit of measurement of resistance?






7. What makes electrons flow?






8. What does a transformer transform?






9. What is a rigid metal conduit?






10. Why is the transformer important to AC electricity?

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11. What is an electromagnet?






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






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






14. What is a wire classification?






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






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






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






18. What is needed for electric heating elements and the filaments of light bulbs?






19. What is a type of mechanical transducer?






20. When reading resistance color codes - what does the first band indicate?






21. What does resistance produce?






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






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






24. What is resistance in electrical terms?






25. What is the difference between AC and DC?






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






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






28. To what measurement do the conductor mills refer?






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






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






31. What does static electricity do?






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






33. What is the use of the electromagnet?






34. What results when current is run through a material with high resistance?






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






36. What is a type of capacitor?






37. What is induction?






38. What is the basic law of magnetic force?






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






40. What is true about a dry cell?






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






42. When does a DC circuit oppose current flow?






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






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






45. What is the purpose of capacitors in electrical circuits?






46. What determines the resistance of a resistor?






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






48. Which type of cell can be recharged?






49. What is resistance?






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