Test your basic knowledge |

Basic Electricity And Electronics

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. Allows current to flow in only one direction






2. Contains battery - used to check for continuity






3. Measures amount of voltage in a circuit






4. Supplies electricity for circuit






5. Measures amount of current in a circuit






6. Measures amount of resistance in ohms in a cirucit or component






7. Have no charge






8. Shows how electrical components are connected by wires






9. Carry current between power source and load






10. Larger gauge=smaller diameter






11. Should be used on all electrical repairs






12. Accidental low- resistance connection resulting in excessive current flow






13. (physics and chemistry) the smallest component of an element having the chemical properties of the element






14. Connect electrical components to chassis or ground of the car






15. Flow of electrons through a conductor






16. Used to test components






17. The opposition to current flow






18. States that current flows from positive to negative






19. Small wire that carries battery or alternator voltage






20. Circuit is complete and operational






21. Diagnostic tool used to find and diagnose vehicle problems






22. Extra electrons that are not locked to protons






23. Special substance capable of acting as conductor and insulator






24. Slipped over outside of wire insulation - uses magnetic field around outside of wire






25. Formula for calculating circuit voltage - current - or resistance

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26. Have atoms that allow the flow of electrons






27. Small section of wire designed to burn in half when excess current is present in circuit






28. Used to absorb unwanted electrical pulses






29. Electric current generated when a wire passes through a magnetic field






30. Current entering in correct direction & diode acts as conductor






31. States that current flows from positive to negative






32. Mocroscopic diodes - transistors - resistors - & capacitors in waferlike chip






33. Circuit is broken and nonoperational






34. Used to deform the connector or terminal around the wire






35. Acts as remote control switch or current amplifier






36. Represent electrical components in a circuit






37. Resist the flow of electricity






38. Current entering in wrong direction & diode acts as inulator






39. Outer band of an electron which holds a maximum of 8 electrons






40. Disconnects power source from circuit when current becomes too high






41. Voltage readings displayed on an oscilloscope






42. Reads and shows two separate waveforms






43. Used only in ignition system for spark plug or coil wires






44. Positively charged particles






45. Negatively charged particles






46. Has more than one load connected in a single electrical path






47. Short to ground between battery and load can melt & burn wire insulation






48. The lines of force surrounding a permanent magnet or a moving charged particle






49. Contains fuses - circuit breakers - & flasher units for various circuits






50. Allows an electric circuit to be turned on or off