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. Voltmeter - ammeter - ohmmeter in one unit






2. Allows current to flow in only one direction






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






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






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






6. Used to absorb unwanted electrical pulses






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






8. Increase






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






10. Resist the flow of electricity






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






12. Circuit is broken and nonoperational






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






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






15. Used to test components






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






17. Diagnostic tool used to find and diagnose vehicle problems






18. Has more than one electrical path






19. Group of wires enclosed in plastic or tape covering






20. Movement of electrons from atom to atom






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






22. The opposition to current flow






23. Supplies electricity for circuit






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

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25. Special substance capable of acting as conductor and insulator






26. Can cause corrosion of electrical components






27. Determined by diameter of wire's metal conductor






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






29. States that current flows from positive to negative






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






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






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






33. Acts as remote control switch or current amplifier






34. Large- gauge wire capable of carrying high currents from battery to starting motor






35. Voltage readings displayed on an oscilloscope






36. Have atoms that allow the flow of electrons






37. Contains battery - used to check for continuity






38. Negatively charged particles






39. Shows how electrical components are connected by wires






40. Checks circuit for voltage






41. Larger gauge=smaller diameter






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






43. Electronic measuring instrument






44. Multi- wire terminals that conect several wires together






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






46. Accurate display of voltage variations shown on an oscilloscope






47. Used to quickly repair automotive wiring






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






49. Positively charged particles






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