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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 less than the lowest- value capacitor?






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






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






4. 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






5. What is the fundamental property of insulators?






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






7. What does a third band of brown mean?






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






9. Identify the blueprint symbol for capacitors.






10. What is a type of capacitor?






11. What is the difference between AC and DC?






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






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






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






15. What is the relationship between cells and batteries?






16. What is the purpose of a raceway?






17. How do you read resistor color codes?






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






19. How is capacitance determined?






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






21. What is a common measure of wire diameter?






22. What is a type of mechanical transducer?






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






24. What does static electricity do?






25. What is a common form used in conductors?






26. Identify the general blueprint symbol for inductors.






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






28. What is the relationship between magnetism and electricity?






29. What does a moving charge produce?






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






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






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






33. What is a conductor?






34. What is another name for an inductor?






35. How is the heat production measured in a resistor?






36. How do static charges distribute themselves?






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






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






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






40. What is a characteristic of insulators?






41. What is the basic law of magnetic force?






42. What is the unit of measurement of resistance?






43. What makes electrons flow?






44. What is a rigid metal conduit?






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






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






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






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






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






50. What determines whether a spark can be produced?







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