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






2. Output power divided by input power - (work performed in ratio to energy used to produce it).






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






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






5. Symbol used to denote transmitter.






6. One thousandth of an inch.






7. SI; The standard metric system of units.






8. A form of energy produced by the flow of particles of matter and consists of commonly attractive positively (protons [+]) and negatively (electrons [-]) charged atomic particles. A stream of electrons - or an electric current.






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






10. Intensity. The commonly used symbol used to represent Amperes when used in formulas. I = Intensity = Current = Amps = Amperes.






11. The measure of the ability of a material or substance to carry electrical current.






12. 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.






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






14. Also known as Hertz - it is the number of complete cycles of periodic waveform that occur during a time period of one second.






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






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






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






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






19. The time based relationship between a reference and a periodic function.






20. Expressed in webers - it is the product of the average normal component of the magnetic intensity over a surface and the area of that surface.






21. Radio Frequency Interference.






22. 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






23. ANSI;






24. A silicone semiconductor that maintains a fixed voltage in a circuit.






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






26. Resistance Temperature Detector.






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






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






29. 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.






30. Symbol for Mega - one million.






31. One millionth of a volt.






32. FM; ~LINK~






33. Normally Open.






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






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






36. A form of silicone dioxide. Commonly used in the making of radio transmitters and heat resistant products.






37. Very High Frequency.






38. 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.






39. Volt-ohm Meter.






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






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






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






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






44. OSHA;






45. An arrangement of any of various conductors through which electric current can flow from a supply current.






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






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






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






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






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