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 a wire classification?






2. What does a first band of white mean?






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






4. What is the relationship between magnetism and electricity?






5. What is a switch that operates by electricity?






6. What is the use of the electromagnet?






7. How many kinds of poles do magnets have?






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






9. What is capacitance in electrical terms?






10. Identify the general blueprint symbol for inductors.






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






12. What is a common form used in conductors?






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






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






15. How is capacitance determined?






16. What is dielectric strength?






17. What is true about a dry cell?






18. What determines the resistance of a resistor?






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






20. Why is the transformer important to AC electricity?

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21. What is a rigid metal conduit?






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






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






24. What does an object have if a magnetic field acts on it?






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






26. What determines whether a spark can be produced?






27. What is a characteristic of insulators?






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






29. Which type of cell can be recharged?






30. How do static charges distribute themselves?






31. What is a common measure of wire diameter?






32. What does a moving charge produce?






33. To what measurement do the conductor mills refer?






34. What is resistance in electrical terms?






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






36. What makes electrons flow?






37. What is an electromagnet?






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






39. How do you read resistor color codes?






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






41. What is a type of capacitor?






42. What is the fundamental property of insulators?






43. 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






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






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






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






47. What does a third band of brown mean?






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






49. What is a DC circuit characteristic?






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