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 induction?






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






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






4. What is a characteristic of insulators?






5. What is power?






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






7. Why is the transformer important to AC electricity?

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8. What instrument measures voltage?






9. What do junction boxes protect?






10. Which type of cell can be recharged?






11. How do static charges distribute themselves?






12. What is a DC circuit characteristic?






13. What does Ohm's Law represent?






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






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






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






17. What is the fundamental property of insulators?






18. What is a type of capacitor?






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






20. What is the purpose of a raceway?






21. What are the two generic methods to eliminate static electricity from metal objects?






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






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






24. What is resistance?






25. What determines whether a spark can be produced?






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






27. What is the difference between AC and DC?






28. How is capacitance determined?






29. Identify the blueprint symbol for capacitors.






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






31. What is an electromagnet?






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






33. What is the relationship between cells and batteries?






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






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






36. What does a moving charge produce?






37. Identify the general blueprint symbol for inductors.






38. What is the use of the electromagnet?






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






40. What is a switch that operates by electricity?






41. What is the relationship between magnetism and electricity?






42. What does resistance produce?






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






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






45. Identify the blueprint symbol for resistors.






46. What is the unit of measurement of electrical current?






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






48. 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






49. What makes electrons flow?






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