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. Which type of cell can be recharged?






2. What is a rigid metal conduit?






3. What cannot be transformed to higher or lower potential differences?






4. Identify the general blueprint symbol for inductors.






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






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






7. What instrument measures voltage?






8. What does a moving charge produce?






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






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






11. What does static electricity do?






12. Identify the blueprint symbol for capacitors.






13. What does resistance produce?






14. What is power?






15. What can permanently break down a capacitor?






16. What is the relationship between cells and batteries?






17. What is the difference between AC and DC?






18. What makes electrons flow?






19. What is induction?






20. What is a type of mechanical transducer?






21. What determines the resistance of a resistor?






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






23. How do you read resistor color codes?






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






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






26. What does a third band of brown mean?






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






28. What is the fundamental property of insulators?






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






30. What do junction boxes protect?






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






32. What does Ohm's Law represent?






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






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






35. How many kinds of poles do magnets have?






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






37. What is dielectric strength?






38. What do transducers do in electrical terms?






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






40. What is resistance in electrical terms?






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






42. What is the purpose of a raceway?






43. What is the use of the electromagnet?






44. What is a conductor?






45. Where does the thumb point in both Left-Hand Rules?






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






47. 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






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






49. What makes electrons flow?






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