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 the unit of measurement of resistance?






2. How is capacitance determined?






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






4. What is a characteristic of a fixed resistor?






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






6. What is the relationship between magnetism and electricity?






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






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






9. What can permanently break down a capacitor?






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






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






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






13. What is induction?






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






15. When does a DC circuit oppose current flow?






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






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






18. What determines the resistance of a resistor?






19. What is the basic law of magnetic force?






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






21. What is a DC circuit characteristic?






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






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






24. What are the common units of measurement for round and square conductor cross - sections?






25. How do static charges distribute themselves?






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






27. What types of protective tapes are used?






28. Identify the blueprint symbol for capacitors.






29. How many kinds of poles do magnets have?






30. What is a type of capacitor?






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






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






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






34. What does static electricity do?






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






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






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






38. How are the capacitors connected when the combined capacitance equals less than the lowest- value capacitor?






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






40. What is true about a dry cell?






41. What makes electrons flow?






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






43. What is a wire classification?






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






45. What are the names of two of the six primary methods of producing a voltage?






46. What is the difference between AC and DC?






47. Identify the blueprint symbol for resistors.






48. To what measurement do the conductor mills refer?






49. What is insulation resistance?






50. What is dielectric strength?