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






2. Which type of cell can be recharged?






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






4. What is the relationship between magnetism and electricity?






5. What does a first band of white mean?






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






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






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






9. What do transducers do in electrical terms?






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






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






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






13. What is the difference between AC and DC?






14. What is the fundamental property of insulators?






15. What is a wire classification?






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






17. What is the relationship between cells and batteries?






18. What determines whether a spark can be produced?






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






20. What do junction boxes protect?






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






22. What is a conductor?






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






24. What is the basic law of magnetic force?






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






26. What does Ohm's Law represent?






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






28. What is induction?






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






30. What is a type of capacitor?






31. What is voltage?






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






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






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






35. What does resistance produce?






36. 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






37. Identify the general blueprint symbol for inductors.






38. What is the unit of measurement of resistance?






39. What does a transformer transform?






40. What is resistance?






41. What is an electromagnet?






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






43. What does static electricity do?






44. What is the measure of potential difference?






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






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






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






48. Why is the transformer important to AC electricity?

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49. To what measurement do the conductor mills refer?






50. What makes electrons flow?







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