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Electrical Engineering

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. Used to convert mechanical energy to electrical energy coupled to the turbine shaft






2. Negatively charged particles of an atom






3. A fundamental quantity in electricity (+ or -)






4. Changes the voltage of electricity so that it can be transferred over long distances






5. Is measured in watts and represents the power consumed by the resistive elements in an AC circuit






6. Significant impact on the capability of equipment to perform properly since the torque delivered by a motor is proportional to the voltage squared






7. Is the vector sum of real and reactive power in an AC circuit and is measured in volt-amperes.






8. A material in which charge moves through easily






9. Is a configuration used for very high current bus assemblies typically operating at generator voltage levels of 20 to 24 kV where each conductor is mounted within its own enclosure.






10. Used at low voltage levels (600 volts and below) to feed individual loads. These devices typically contain a thermal magnetic element which provides an inverse time tripping characteristic.






11. Neutral charged particles of an atom






12. Are used to provide low current circuits for use in metering - monitoring - and protective relaying applications. The turns ratio determines the amount of current that will be available in the secondary as a function of the system current on the prim






13. Similar to switchgear except for use in low voltage versus medium voltage applications. used to supply power to motor control centers and large individual low voltage motors in some applications.






14. Requires - in part - that (1) electric power from the transmission network to the onsite distribution system shall be supplied by two physically independent circuits (not necessarily on separate rights of way) designed and located so as to minimize t






15. A solid conductor through which a current enters or exits a medium






16. The path of an electron in an atom or molecule






17. Are used at low voltages rather than medium voltage and they contain CTs and protective devices as part of the assembly.






18. protect your eyes and clothing. air must be circulated through the battery rooms with large stationary batteries to prevent a build-up of a combustible mixture.System cannot be grounded. First ground should do nothing.






19. (analogous to flow) predominantly flows on the surface of the conductor.






20. An electrode where free electrons are produced






21. Represents the power transferred to or from capacitive and inductive elements in an AC circuit and is measured in volt-amperes reactive. Voltage and current are 90






22. High voltage breakers and buses are arranged to allow power flow on the grid while isolating individual generators - transformers or transmission lines as needed. Power from the plant is delivered to the grid via the plant ****** - and the ******* se






23. May be used to power various low voltage loads and are typically used for applications that do not require any form of remote control.






24. V=IR.


25. The product of voltage times current






26. The flow of electrons (-) through a material






27. Are used to supply power to smaller industrial and commercial users as well as residential customers. These lines can be compared to local roads such as the one in your local area or neighborhood - i.e. they're designed to handle the needs of local t






28. Changes in voltage caused by motor starts or other loads being switched onto an electrical system






29. A material that is usually insulated but becomes conductive through the addition of an impurity






30. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.






31. An electrode where reduction occurs






32. Operate somewhat like check valves such that current only flows in one direction - when the voltage on the input is higher than the output






33. Analogous to a power plant switchyard but on the load end. Voltage is stepped down to Distribution System voltages.






34. Temperature Controlled






35. The flow of electrons






36. A voltage source that does not change polarity such as that delivered from a battery.






37. Atoms that have acquired an electrical charge






38. Unit's main generator - offsite power via the switchyard - and redundant emergency diesel generators






39. The instantaneous movement from negatively charged atoms to positively charged atoms






40. Used in numerous applications to amplify or perform switching operations.






41. Used to optimize power output. Multiply by root 3.






42. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.






43. A circuit with a break in its path






44. 125 and 250 VDC.






45. Voltage Source - Conductor - Switch - Load






46. Used to supply power to large industrial and commercial facilities as well as the Retail System. lines can be compared to state highways and major roads around cities.






47. A material that has no resistance to electrical current - this usually occurs near absolute zero






48. A circuit with a complete path - which allows for charges to move






49. A material through which a charge does not move easily






50. A material that dissolves in water producing a solution that conducts electricity