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 purpose of a raceway?






2. What types of protective tapes are used?






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






4. What does Ohm's Law represent?






5. What is the use of the electromagnet?






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






7. What is a conductor?






8. What makes electrons flow?






9. What is a DC circuit characteristic?






10. What is a characteristic of a fixed resistor?






11. What is the measure of potential difference?






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






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






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






15. What is a common measure of wire diameter?






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






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






18. What does a transformer transform?






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






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






21. What is the relationship of conductor size and length to resistance?






22. What is power?






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






24. What is voltage?






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






26. Identify the blueprint symbol for resistors.






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






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






29. Which type of cell can be recharged?






30. What is the term used when a magnetic field produced by coil 1 created a current in coil 2?






31. What is a type of mechanical transducer?






32. What is the relationship between cells and batteries?






33. 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






34. What is an electromagnet?






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






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






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






38. Identify the general blueprint symbol for inductors.






39. When does a DC circuit oppose current flow?






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






41. What is a type of capacitor?






42. What do transducers do in electrical terms?






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






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






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






46. What makes electrons flow?






47. How is capacitance determined?






48. What is a wire classification?






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






50. What is resistance in electrical terms?