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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. 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






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






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






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






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






7. 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.






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






9. 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.






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






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






12. One or more cells connected in series






13. 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






14. Any path that electrons flow through






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






16. 125 and 250 VDC.






17. The flow of electrons






18. 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.






19. 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.






20. Voltage Source - Conductor - Switch - Load






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






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






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






24. 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






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






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






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






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






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






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






32. Building blocks of elements consisting of a positively charged nucleus surrounded by electrons






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






34. Positively charged particles of an atom






35. Temperature Controlled






36. Negatively charged particles of an atom






37. The product of voltage times current






38. 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.






39. 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






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






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






42. 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






43. 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






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






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






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






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






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






49. 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






50. A material in which charge moves through easily