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






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. 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






4. V=IR.


5. A circuit with a break in its path






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






7. 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.






8. 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.






9. Any path that electrons flow through






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






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






13. A material in which charge moves through easily






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






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






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






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






18. Positively charged particles of an atom






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






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






21. 125 and 250 VDC.






22. 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






23. 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






24. 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






25. 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 -






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






27. 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.






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






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






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


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






32. An electrode where reduction occurs






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






34. 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






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






36. A device that changes mechanical energy into electricity






37. One or more cells connected in series






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






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






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






41. Atoms that have acquired an electrical charge






42. The flow of electrons






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






44. 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.






45. 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.






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






47. Temperature Controlled






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






49. 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.






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






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