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






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






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


4. One or more cells connected in series






5. An electrode where free electrons are produced






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. Atoms that have acquired an electrical charge






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






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






10. 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






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






12. 125 and 250 VDC.






13. The flow of electrons






14. 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






15. Positively charged particles of an atom






16. 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






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






18. V=IR.


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






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






21. 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.






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






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






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






25. The product of voltage times current






26. An electrode where reduction occurs






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. 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.






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






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






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






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






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






34. Any path that electrons flow through






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






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






37. Negatively charged particles of an atom






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






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






40. 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






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






42. Neutral charged particles of an atom






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






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. A material in which charge moves through easily






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






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






48. 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






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






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