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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. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.






2. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.






3. NEMA;






4. Kw; One thousand watts.






5. Silicone Controlled Rectifier.






6. A circuit which may have one or many resistors and/or other various devices connected in a series so that the current has only one path to follow.






7. Normally Open.






8. Electric current passing through an electrolyte which produces chemical changes in it.






9. A region of space that surrounds a moving electrical charge or a magnetic pole - in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest.






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






11. The standard unit of magnetic flux.






12. The difference in potential measured between two points caused by resistance or impedance.






13. The standard that is used to make comparison measurements or calibrations.






14. A hypothetical nuclear of a quark plus an antiproton.






15. Mm; One thousandth of a meter.






16. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.






17. A meter used to measure electrical resistance in units of ohms.






18. The magnitude and time phase of a quantity - represented by a plotted line.






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






20. A unit of electrical current named after French physicist Andr






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






22. Very High Frequency.






23. A device having two terminals and has a low resistance to electrical current in one direction and a high resistance in the other direction.






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






25. Response to the change in the level of the input signal.






26. The delayed period of time when outputs are turned off when power is initially applied.






27. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.






28. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i






29. Symbol used to denote transformer.






30. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.






31. IBEW;






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






33. A sudden and unwanted increase or decrease of supply voltage or current.






34. A device that converts AC voltage to pulsating DC voltage.






35. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).






36. To close an electrical circuit. To establish an electrical circuit through the closing of a contact - switch or other related device.






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






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






39. The speed or time rate of change of displacement.






40. The maximum watts that a device can safely handle.






41. An electromagnetic radiation produced when the inner satellite electrons of heavy atoms have been excited by collision with a stream of fast electrons return to their ground state - giving up the energy previously imparted to them.






42. The opposition to electrical flow.






43. A connected path to earth or to a conductive body that has a reference potential to earth.






44. Applying molecular physics to electronics.






45. See; 'Proximity Sensor'.






46. A three terminal semiconductor device. In a 'FET' the current is from source to drain because a conducting channel is formed by a voltage field between the gate and the source.






47. A three mode control consisting of time Proportioning - Integral and Derivative rate action.






48. A highly accurate bridge configuration that is used to measure three-wire RTD thermometers.






49. 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.






50. A fundamental negatively (-) charged atomic particle that rotates around a positively (+) charged nucleus of the atom.







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