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. 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


2. A current which reverses in direction at regularly recurring intervals - the total flow in one direction being equal to that in the other direction.






3. Any of the spaces occupied by the orbits of a group of electrons of approximately equal energy surronding the nucleus of an atom.






4. A unit of POWER. 1 kilowatt = 1 -000 watts






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






6. A resistor designed so that its resistance is readily adjusted.






7. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.






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






9. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.






10. A circuit with two or more paths for the current to take.






11. The moving part of a dynamo or motor consisting of coils of wire around an iron core.






12. The voltage dissipation between any two points in a circuit. The voltage 'dropped' or 'dissipated' in forcing current through a resistance.






13. In a battery - the electrode which takes up the electrons returning from the external circuit.






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






15. A generator that produces alternating current.






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






17. The condition where the free electrons are caused to move in the same direction along or through a conductor.






18. The unit of Electro- Motive Force






19. Term applied to the loss of voltage in forcing current through any portion of a circuit. Different factors will cause a drop; material - size - (cross - sectional area) length - temperature.






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






21. Single POSITIVE electrical charge - located in the middle of an atom.






22. A circuit with only one path for current to flow. There are no branches.






23. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.






24. One millionth of a volt.






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






26. A circuit in which there is resistance (load) connected both in series and parallel.






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






28. Positive charge of electricity. Located in the nucleus of the atom.






29. Electric charges at rest. Caused by friction of materials - where a surplus of electrons exists and may be discharged.






30. A material with few free electrons. A structure or material used to prevent the passage of current.






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






32. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.






33. A circuit carrying three alternating currents whose cycles begin one after another. 120 electrical degrees apart.






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






35. Iron and certain alloys of iron which are magnetized by artificial means.






36. The rotating member of an electrical machine.






37. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.






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






39. A cell which is composed of certain materials which are used up during the process of delivering electric current.






40. One millionth of an ohm.






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






42. The space around a magnet in which the magnetic force is felt.






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






44. 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


45. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.






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






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






49. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours






50. Negative charge of electricity