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 a common form used in conductors?






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






3. What is the unit of measurement of resistance?






4. What is a characteristic of insulators?






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






6. What is a common measure of wire diameter?






7. How many kinds of poles do magnets have?






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






9. What does Ohm's Law represent?






10. How do you read resistor color codes?






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






12. What is the unit of measurement of potential difference?






13. What is the measure of potential difference?






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






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






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






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






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






19. What does static electricity do?






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






21. What do junction boxes protect?






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






23. What is a DC circuit characteristic?






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






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






26. What is a type of mechanical transducer?






27. What does a first band of white mean?






28. What is voltage?






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






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






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






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






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






34. What makes electrons flow?






35. What is a characteristic of a fixed resistor?






36. What is insulation resistance?






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






38. What is the relationship between cells and batteries?






39. How do static charges distribute themselves?






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






41. What is the purpose of a raceway?






42. What is the use of the electromagnet?






43. What are the two generic methods to eliminate static electricity from metal objects?






44. What is the basic law of magnetic force?






45. What does a third band of brown mean?






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






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






48. What instrument measures voltage?






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






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