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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 material that dissolves in water producing a solution that conducts electricity






2. 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.






3. 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






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






5. 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.






6. A circuit with a break in its path






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






8. 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 -






9. An electrode where free electrons are produced






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






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






12. 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






13. 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.






14. 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






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






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






17. One or more cells connected in series






18. Any path that electrons flow through






19. 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 ****






20. 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






21. An electrode where reduction occurs






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






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






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


25. 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.






26. Positively charged particles of an atom






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






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






29. 125 and 250 VDC.






30. Neutral charged particles of an atom






31. 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.






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






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






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






35. V=IR.


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






37. 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






38. Temperature Controlled






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






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






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






42. 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






43. A material in which charge moves through easily






44. 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.






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






46. Negatively charged particles of an atom






47. Voltage Source - Conductor - Switch - Load






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






49. 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






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