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. How do static charges distribute themselves?






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






3. What instrument measures voltage?






4. How many kinds of poles do magnets have?






5. What is power?






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






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






8. What does a first band of white mean?






9. What is a wire classification?






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






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






12. Identify the general blueprint symbol for inductors.






13. What is a rigid metal conduit?






14. Which type of cell can be recharged?






15. What is a common measure of wire diameter?






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






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






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






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






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






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






22. What is capacitance in electrical terms?






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






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






25. What does a third band of brown mean?






26. What is a type of mechanical transducer?






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






28. What is a type of capacitor?






29. What is a characteristic of insulators?






30. What is the basic law of magnetic force?






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






32. What do junction boxes protect?






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






34. What is another name for an inductor?






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






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






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






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






39. What does resistance produce?






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






41. What does a moving charge produce?






42. What is a characteristic of a fixed resistor?






43. What is true about a dry cell?






44. Given E=I X R and the following information - plug in the data and solve the problem for voltage. 0.015 ohms - 800 amps of current






45. What is resistance?






46. What is induction?






47. What is voltage?






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






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






50. What is the relationship between magnetism and electricity?