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






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






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






4. 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.






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






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






7. One or more cells connected in series






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






10. Voltage Source - Conductor - Switch - Load






11. Offsite power comes in via sartup transformer and some sites can backfeed power from grid via the main transformer OR even a crosstie






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






13. 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






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






15. A material in which charge moves through easily






16. 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






17. V=IR.


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






19. A circuit with a break in its path






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






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






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






23. Atoms that have acquired an electrical charge






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






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






26. 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






27. Any path that electrons flow through






28. An electrode where reduction occurs






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






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






31. 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






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






33. The product of voltage times current






34. 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.






35. Temperature Controlled






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






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






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






39. 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.






40. 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






41. An electrode where free electrons are produced






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






43. Positively charged particles of an atom






44. 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






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






47. 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.






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






49. 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.






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