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 blueprint symbol for capacitors.






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






3. What is the unit of measurement of resistance?






4. What is a common measure of wire diameter?






5. What does a first band of white mean?






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






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






8. What is a type of mechanical transducer?






9. What is resistance?






10. To what measurement do the conductor mills refer?






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






12. What do junction boxes protect?






13. 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






14. What is the relationship between magnetism and electricity?






15. What instrument measures voltage?






16. What does a transformer transform?






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






18. How is capacitance determined?






19. What is induction?






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






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






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






23. What is a common form used in conductors?






24. What is a characteristic of insulators?






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






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






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






28. What is an electromagnet?






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






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






31. What is voltage?






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






33. What is a wire classification?






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






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






36. What is a rigid metal conduit?






37. When does a DC circuit oppose current flow?






38. What determines the resistance of a resistor?






39. What is power?






40. What is the basic law of magnetic force?






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






42. Which type of cell can be recharged?






43. What is capacitance in electrical terms?






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






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






46. What is another name for an inductor?






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






48. What is a switch that operates by electricity?






49. What does Ohm's Law represent?






50. What is the relationship between cells and batteries?