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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. Temperature Controlled






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






3. 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






4. 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.






5. A circuit with a break in its path






6. 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






7. 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.






8. Main Generator feeds main transformer - aux transformer (to aux loads) and crosstie to train B






9. An energy storage device that converts chemical energy to electricity when power is needed.






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






11. 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






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






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






14. 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 -






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






16. Neutral charged particles of an atom






17. Positively charged particles of an atom






18. Power Systems Branch [Position] one required nuclear utilities to install degraded grid voltage relay schemes to preclude connecting safety related loads to the grid following an accident if grid voltage should be inadequate to support required opera






19. 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






20. Voltage Source - Conductor - Switch - Load






21. Atoms that have acquired an electrical charge






22. 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.






23. 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 ****






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. 125 and 250 VDC.






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






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






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






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






30. A material in which charge moves through easily






31. Are used to provide low voltage circuits for use in metering - monitoring - and protective relaying applications. The turns ratio of the transformer determines the low voltage rating as a function of the system voltage - and is often selected to be 1






32. 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.






33. The flow of electrons






34. An electrode where reduction occurs






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






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






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






38. 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






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






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






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






42. 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.






43. 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






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






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

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






47. One or more cells connected in series






48. Any path that electrons flow through






49. An electrode where free electrons are produced






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

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