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






2. 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.






3. A unit of electric charge. The amount of charge conveyed in one second by one ampere.






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






5. The rate of transfer of energy.






6. Chemical changes and energy produced by electric currents.






7. MA; One thousandth of an amp.






8. 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






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






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






11. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.






12. FM; ~LINK~






13. A full-wave rectifier where the diodes are connected in a bridge circuit. This allows the current to the load during both the positive and negative alternating of the supply voltage.






14. Symbol for Mega - one million.






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






16. The opposition to electrical flow.






17. The increase of the power level - current or voltage of a signal. In an amplifier it is the ratio of the output to the input signal levels.






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






19. Volt-ohm Meter.






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






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






22. 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.






23. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.






24. 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.






25. The element inside a vacuum tube - incandescent lamp or other similar device.






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






27. The unit for capacitance. A capacitor that stored one coulomb of charge with one volt across it will have a value of one farad.






28. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.






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






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






31. Variable Frequency.






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






33. Very High Frequency.






34. ISA;






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






36. A hypothetical basic subatomic nuclear particle believed to be the basic component of protons - neutrons - etc.






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






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






39. A meter used to measure units of volts.






40. 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.






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






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






43. CSA ~LINK~






44. Normally Closed.






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






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






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






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






49. 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






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