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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. FM; ~LINK~






2. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.






3. A rise and fall of voltage - current - or other faction that would be constant under normal conditions. A pulse that is intentionally induced will have a finite duration time.






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






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






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






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






8. The average temperature of a process.






9. A solid-state switching device used in switching AC wave forms.






10. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.






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






12. 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.






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






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






15. The moving of electricity or heat through a conductor.






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






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






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






19. One millionth of an amp.






20. The part of a circuit that supplies power to the entire circuit or part of the circuit. Usually a separate unit that supplies power to a specific part of the circuit in a system.






21. The rate at which electricity flows - measured in amperes - 1 ampere = 1 coulomb per second.






22. Silicone Controlled Rectifier.






23. A Solid State relay is a switching device that completes or interrupts a circuit electrically and has no moving parts. A Mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circu






24. The standard unit of magnetic flux.






25. A controller whose action is either fully on or off.






26. The maximum temperature at which a device can be safely operated.






27. In a temperature controller it is the output form that provides a current proportional to the amount of control that is required. Commonly it is the 4 to 20 milliamp current proportioning band that is used in the electronics industry.






28. NFPA;






29. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg






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






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






32. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.






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






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






35. Chemical changes and energy produced by electric currents.






36. 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.






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






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






39. One of the very small discrete packets into which many forms of energy are subdivided.






40. Very High Frequency.






41. The mechanism of a switch which operates the contacts.






42. The pronounced curvature in reverse voltage current that is characteristic of a diode.






43. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.






44. Normally Closed.






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






46. ISO;






47. Symbol used to denote transmitter.






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






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






50. 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







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