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. The path of an electron in an atom or molecule






2. A condition where one or more phases have come into contact with ground or other phase(s) of the circuit - or the insulation separating them has been degraded. The current flow is only limited by the impedance between the source(s) and the ****






3. 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






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






5. 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






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






7. 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.






8. 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.






9. A device that changes mechanical energy into electricity






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






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






12. Any path that electrons flow through






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. 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






15. An electrode where reduction occurs






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






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






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






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






24. Atoms that have acquired an electrical charge






25. 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






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






27. 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.






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


30. The product of voltage times current






31. 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






32. 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 -






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






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






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






36. 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






37. A mechanical switching device used to either enable or interrupt current flow in a circuit. Typically provides both overload and fault protection. Is similar to a fuse; however - can be reset and reused.






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






39. An electrode where free electrons are produced






40. 125 and 250 VDC.






41. V=IR.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






45. 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






46. A material in which charge moves through easily






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






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






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






50. Positively charged particles of an atom