Test your basic knowledge |

Basic Electricity Vocab

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. The unit of electromotive force - potential - pressure - or voltage which produces a current of one ampere in a circuit having a resistance of 1 ohm. This is the force created to move electrons through a circuit.






2. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...






3. A current limiting device designed to melt and break the circuit when a specified current is exceeded. (The weakest point in a circuit)






4. A single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of an atom.






5. A connection of circuit of low resistance. Current through each of the end- to- end devices is exactly the same. Only one path for the current.






6. A material which can be magnetized - principally iron.






7. An alternating current which current cycle begins later that its voltage cycle.






8. One million ohms.






9. Smallest part a substance can physically divided into composed of 2 or more atoms.






10. The liquid solution (sometime a paste) in which the electrodes are placed.






11. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature






12. A complete path provided for the flow of electrons. Consists of a source - with a closed conducting path leading from the source and back to the source






13. The property of a material that opposes the flow of current.






14. An instrument for measuring electric current






15. A material that has many free electrons thus allowing electric current to flow through it easily.






16. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.






17. Transformer coil connected to the load. (Output side of a transformer regardless of voltage).






18. The rotating member of an electrical machine.






19. The magnetism which a material retains after the magnetic force which magnetized it has been removed.






20. The time rate at which work is done or energy is transferred. When a pressure of 1 volt sends a current of 1 ampere through a resistance of 1 ohm - the power in the circuit is said to be 1 watt.






21. The opposite ends of a magnet where the magnetism is concentrated. Each magnet has two poles - designated as north and south.






22. A rod or strip composed of two metals having different rates or coefficients of expansion. Upon being heated - it bends in a direction which causes the material with the greater rate of expansion to be on the outside.






23. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.






24. The difference between the electrical condition of one point in an electric circuit and that of another point which tends to cause current to flow between two points. Measured in volts.






25. A unit of power.






26. Coil connected to the source of power on a transformer.






27. One millionth of a volt.






28. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.






29. A transformer designed to raise the voltage of an alternating current. Most common use; In a generating plant to raise the voltage.






30. Total and complete opposition to the flow of electrons






31. A short circuit between two energized conductors and/or an energized conductor and a grounded phase. Very high current flow.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


32. Those electrons in orbit nearest the nucleus - not easily dislodged from their normal orbits.






33. An alternating current which current cycle begins earlier than its voltage cycle.






34. Negative charge of electricity






35. A cell which is rechargeable. Uses materials which change in compostition during delivery of current - but may be restored to original condition upon recharge.






36. In an electrical circuit - or part of an electric circuit - the intensity of the current is equal to the electromotive force that drives it divided by the resistance of the circuit.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


37. A rate of movement of electrons through a conductor.






38. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.






39. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.






40. Lines representing the direction of the magnetic force in a magnetic field.






41. Single NEGATIVE electrical charge. Orbits around the nucleus some in paths close to the nucleus - others in paths varying distance from the nucleus.






42. The area surrounding a magnet in which magnetic properties are exhibited






43. The number of cycles per second. Example: 60 cycles per second alternating current.






44. The center portion of an atom which has a positive electrical charge.






45. The part of the magnet where the magnetic force is most concentrated. Commonly referred to as the North or South pole or the positive or negative poles)






46. Several secondary cells connected together for either a greater voltage or current output.






47. The path of an electric current. To permit a steady flow of current - the path must be complete. Commonly - a complete circuit includes a device for the production of an electromotive force - connecting wires - and a device supplied with electricity.






48. Shows relationship between Current - Voltage - Wattage and Resistance.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


49. A coil of wire designed to act as a magnet as a result of carrying an electrical current. It is usually wound on a soft iron core.






50. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.