Test your basic knowledge |

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. 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






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






5. The flow of electrons






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






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






9. Voltage Source - Conductor - Switch - Load






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






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






12. Any path that electrons flow through






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






14. Neutral charged particles of an atom






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






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






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






18. Temperature Controlled






19. One or more cells connected in series






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






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






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


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






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






26. 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.






27. Negatively charged particles of an atom






28. 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






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






30. V=IR.


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






32. The product of voltage times current






33. Atoms that have acquired an electrical charge






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






35. 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






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






37. 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






38. An electrode where reduction occurs






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






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






41. 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






42. 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.






43. An electrode where free electrons are produced






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






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






46. 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






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






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


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






50. 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