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 induction?






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






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






4. What is a conductor?






5. What is a type of capacitor?






6. What makes electrons flow?






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






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






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






10. What is the relationship between cells and batteries?






11. 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






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






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






14. What is the purpose of a raceway?






15. What makes electrons flow?






16. When reading resistance color codes - what does the first band indicate?






17. What can permanently break down a capacitor?






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






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






20. What does a third band of brown mean?






21. What is another name for an inductor?






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






23. What is a characteristic of a fixed resistor?






24. Which type of cell can be recharged?






25. What is dielectric strength?






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






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






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






29. When does a DC circuit oppose current flow?






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






31. What is capacitance in electrical terms?






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






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






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






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






36. What is a DC circuit characteristic?






37. What does Ohm's Law represent?






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






39. What is a common measure of wire diameter?






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






41. What does static electricity do?






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






43. What is voltage?






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






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






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






47. What is power?






48. What does resistance produce?






49. What is resistance in electrical terms?






50. What is a switch that operates by electricity?