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. Disconnects power source from circuit when current becomes too high






2. Small wire that carries battery or alternator voltage






3. Increase






4. Flow of electrons through a conductor






5. Reads and shows two separate waveforms






6. Carry current between power source and load






7. Represent electrical components in a circuit






8. Shows how electrical components are connected by wires






9. Circuit is broken and nonoperational






10. Contains battery - used to check for continuity






11. Used to permanently fasten wires to terminals or other wires






12. Have atoms that allow the flow of electrons






13. Extra electrons that are not locked to protons






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






15. Should be used on all electrical repairs






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






17. Measures amount of current in a circuit






18. Electronic measuring instrument






19. Force that causes electron flow






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






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






22. Acts as remote control switch or current amplifier






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






24. Resist the flow of electricity






25. States that current flows from positive to negative






26. Vehicle's frame/body serves as an electrical conductor






27. Circuit is complete and operational






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






29. Used to absorb unwanted electrical pulses






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






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






32. Electrically operated switch - allows small dash switch to control another circuit from a distant point






33. Can cause corrosion of electrical components






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






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






36. Used to quickly repair automotive wiring






37. States that current flows from positive to negative






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






39. Larger gauge=smaller diameter






40. Voltmeter - ammeter - ohmmeter in one unit






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






42. Positively charged particles






43. Movement of electrons from atom to atom






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






45. Negatively charged particles






46. Used to test components






47. Checks circuit for voltage






48. Diagnostic tool used to find and diagnose vehicle problems






49. Accurate display of voltage variations shown on an oscilloscope






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