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. 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.






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






3. 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.






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






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






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






7. 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.






8. V=IR.

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


9. 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.






10. 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.






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






12. 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






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






14. The flow of electrons






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






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






17. 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 -






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






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






20. 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.






21. 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






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






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






24. One or more cells connected in series






25. Atoms that have acquired an electrical charge






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






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






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






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






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. 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. 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.






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






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






35. 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






36. 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


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






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






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






40. 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






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






42. Positively charged particles of an atom






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






44. A circuit with a break in its path






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






46. A material in which charge moves through easily






47. Any path that electrons flow through






48. 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






49. 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






50. Voltage Source - Conductor - Switch - Load