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






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






3. 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






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






5. Used for transmission systems which are used for transporting bulk power from large generators to areas with heavy load concentrations such as cities.






6. A circuit with a break in its path






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






8. A mechanical switching device used to either enable or interrupt current flow in a circuit. Typically provides both overload and fault protection. Is similar to a fuse; however - can be reset and reused.






9. Temperature Controlled






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






11. 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






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






13. Large battery - a battery charger - and a distribution panel






14. Offsite power comes in via sartup transformer and some sites can backfeed power from grid via the main transformer OR even a crosstie






15. If you are requesting service for new loads - or are making changes that affect the time when a load would operate or the amount of load -






16. The source voltage is equal to the sum of the voltage drops across the elements of the circuit and the load.


17. A condition where one or more phases have come into contact with ground or other phase(s) of the circuit - or the insulation separating them has been degraded. The current flow is only limited by the impedance between the source(s) and the ****






18. Total Current entering a junction must equal current leaving a junction


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






20. 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






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






22. Is typically used for medium voltage applications where the 3 phase conductors can be mounted within the same enclosure.






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






24. The power output from the plant is stepped up in voltage to match the grid voltage. Transformers that are used to provide offsite power to the plant (e.g. when the generator is off-line) step down the voltage.






25. V=IR.


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






27. Used to isolate equipment but are typically not designed to be opened or closed while the circuit is energized (i.e. they're not designed to interrupt current). Also used in switchyard to isolate equipment






28. Nuclear fuel is used to produce heat which is used to create steam. The steam is used to spin the turbine. The turbine shaft is connected to the generator rotor. The mechanical energy is converted to electrical energy through the generator.






29. An assembly of low voltage circuit breakers and/or starters used to supply individual loads of small to moderate sizes. Each feeder circuit is typically contained in a separate compartment or bucket.






30. An assembly of circuit breakers typically used to supply power to large motors and medium or low voltage transformers within the auxiliary power system. Each breaker is contained in a separate cubicle along with associated current transformers - and






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






32. 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






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






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






35. Neutral charged particles of an atom






36. One or more cells connected in series






37. A material in which charge moves through easily






38. Any path that electrons flow through






39. The product of voltage times current






40. A device that changes mechanical energy into electricity






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






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






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






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






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






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. 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






48. An electrode where free electrons are produced






49. Atoms that have acquired an electrical charge






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