Test your basic knowledge |

Electrical Components

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. Symbol used to denote transmitter.






2. A device used to store electrical energy in an electrostatic field until discharge.






3. Chemical changes and energy produced by electric currents.






4. One millionth of a meter.






5. The current that is gained by a transistor when it is connected in a common emitter circuit.






6. An interconnected arrangement of parts for carrying high-voltage electricity.






7. The conductor that is used by intent to connect the grounded circuit of an electrical wiring system or equipment to a grounding electrode with reference to earth.






8. That part of a circuit which is physically interconnected.






9. A circuit conductor that is grounded to become part of the electric circuit by design and intent.






10. Current Consumption. The amount of amps or milliamps needed to maintain operation of a control or device.






11. The modification of a signal that causes the output to remain energized until it is released by intent.






12. The rate of transfer of energy.






13. The time it takes for a controller to complete one on/off cycle.






14. ISA;






15. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.






16. One millionth of a volt.






17. The power of one watt operating for one hour - and equal to 3 -600 joules.






18. An area in which combustible or flammable mixtures are or could be present.






19. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.






20. A fluctuation in the intensity of a steady current.






21. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.






22. Pounds per square inch differential. The difference in pressure between two points.






23. IBEW;






24. Non-conducting material used to isolate and/or insulate energized electrical components.






25. Protective circuitry to guard against spikes that might be induced on the supply line.






26. Pounds per square inch absolute. Pressure commonly in reference to vacuum.






27. A device that transfers power or energy from one system to another - such as taking a physical quality and changing it to an electrical signal.






28. The resistance to electrical current. Resistance is measured in ohms.






29. IEC;






30. An anode (+) or cathode (-) conductor on a device through which an electric current passes.






31. A unit of energy in solid-state physics with mass and momentum but that does not exist as a free particle.






32. The quality of having the ability to emit light when struck by electrons or another form of radiation.






33. A tube - pipe or trough that carries and protects electric wiring.






34. Variable Frequency.






35. A switch with contacts that are made with actuating force and released when that force is removed.






36. Electric and magnetic force field that surrounds a moving electric charge.






37. The unit by which electrical resistance is measured. One ohm is equal to the current of one ampere which will flow when a voltage of one volt is applied






38. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.






39. See; 'Proximity Sensor'.






40. SI; The standard metric system of units.






41. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.






42. Pounds per square inch gage. Pressure in relationship to the ambient air pressure>






43. A device incorporating semiconductor material and suitable contacts capable of performing electrical functions (such as voltage - current or power amplification) with low power requirements.






44. The output that is produced when one or more inputs are present.






45. A temperature scale. Also known as centigrade. Sea level water will freeze at 0






46. 'American Wire Gauge' system used to determine wire size.






47. The basic of thermal energy. The work done by the force of one newton acting through a distance of one meter.






48. The act of the opening of an electrical circuit.






49. The range of voltage needed to maintain operation of a control or device.






50. An ionized gas containing about equal numbers of positive and negative charges - which is a good conductor of electricity - and is affected by a magnetic field.