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 does a moving charge produce?






2. What is a common measure of wire diameter?






3. What is a conductor?






4. How is capacitance determined?






5. What is a DC circuit characteristic?






6. What is induction?






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






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






9. What does a third band of brown mean?






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






11. What is voltage?






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






13. What makes electrons flow?






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






15. Identify the general blueprint symbol for inductors.






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






17. What does a transformer transform?






18. What instrument measures voltage?






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






20. What is a switch that operates by electricity?






21. Which way is the current going in the circuit shown?(electron flow)






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






23. What is the unit of measurement of resistance?






24. Identify the blueprint symbol for capacitors.






25. What is a type of mechanical transducer?






26. What is the relationship between cells and batteries?






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






28. What is power?






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






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






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






32. What types of protective tapes are used?






33. What is resistance?






34. How many kinds of poles do magnets have?






35. What does a first band of white mean?






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






37. What is resistance in electrical terms?






38. How do static charges distribute themselves?






39. What can permanently break down a capacitor?






40. What do transducers do in electrical terms?






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






42. What is a type of capacitor?






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






44. What is capacitance in electrical terms?






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






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






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






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






49. What does resistance produce?






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