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 can permanently break down a capacitor?






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






3. What is a DC circuit characteristic?






4. What is an electromagnet?






5. What is a type of mechanical transducer?






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






7. What is resistance in electrical terms?






8. What does Ohm's Law represent?






9. How do static charges distribute themselves?






10. In most applications - what remains constant if the current remains constant and flows in one direction?






11. What is power?






12. How many kinds of poles do magnets have?






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






14. What is the use of the electromagnet?






15. What do junction boxes protect?






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






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






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






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






20. What is the difference between AC and DC?






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






22. What is capacitance in electrical terms?






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






24. What is true about a dry cell?






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






26. What is the measure of potential difference?






27. What is a characteristic of insulators?






28. What is the basic law of magnetic force?






29. What is a common form used in conductors?






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






31. What is insulation resistance?






32. How do you read resistor color codes?






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






34. What does static electricity do?






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






36. What is resistance?






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






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






39. What is the fundamental property of insulators?






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






41. When does a DC circuit oppose current flow?






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






43. To what measurement do the conductor mills refer?






44. What determines the resistance of a resistor?






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






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






47. What is induction?






48. What does a transformer transform?






49. What does a first band of white mean?






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