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Test your basic knowledge |
Electrical Engineering
Start Test
Study First
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. A material that is usually insulated but becomes conductive through the addition of an impurity
Reactive Power
Non-segregated Phase Bus
semiconductor
Current transformers (CTs)
2. (analogous to flow) predominantly flows on the surface of the conductor.
Simple Circuite Contains?
circuit
Current
Disconnect switches
3. Offsite power comes in via sartup transformer and some sites can backfeed power from grid via the main transformer OR even a crosstie
High Voltage Lines
Nuclear energy
Switchgear
Generator off-line
4. A material that has no resistance to electrical current - this usually occurs near absolute zero
Kirchoff's Voltage Law
superconductor
Transformer
Battery Rooms
5. Are used at low voltages rather than medium voltage and they contain CTs and protective devices as part of the assembly.
Generator
charge
Swtichyard
Load center breakers
6. A material that dissolves in water producing a solution that conducts electricity
electrode
Current transformers (CTs)
electrolyte
Reactive Power
7. Temperature Controlled
orbital
Normal Operation
Battery Rooms
Transformer
8. 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 ****
Fault
A motor control center (MCC
battery
Distribution System
9. Main Generator feeds main transformer - aux transformer (to aux loads) and crosstie to train B
Battery Rooms
Normal Operation
High Voltage Lines
General Design Criterion 17 (GDC-17)
10. An electrode where reduction occurs
Kirchoff's Current law
Potential transformers (PTs)
cathode
charge
11. 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.
semiconductor
Switchgear
Caution around DC Circuits
Kirchoff's Current law
12. 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
Apparent Power
Reactive Power
Real Power
current electricity
13. 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.
Simple Circuite Contains?
General Design Criterion 17 (GDC-17)
Potential transformers (PTs)
Distribution System
14. Used to optimize power output. Multiply by root 3.
Three Phase Power
conductor
electrode
Diodes
15. A material through which a charge does not move easily
Load center
Battery Rooms
insulator
Swtichyard
16. Neutral charged particles of an atom
DC
neutrons
orbital
High Voltage Lines
17. The product of voltage times current
Battery
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
Power
Transformer (smaller)
18. Atoms that have acquired an electrical charge
Power
Three Phase Power
ion
current electricity
19. The flow of electrons
Generator
insulator
Distribution System
electricity
20. Used for transmission systems which are used for transporting bulk power from large generators to areas with heavy load concentrations such as cities.
electrode
SR Sources of power
orbital
High Voltage Lines
21. An electrode where free electrons are produced
Current transformers (CTs)
anode
electric generator
Generator
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
Switchgear
Battery
Three Phase Power
Power
23. Is typically used for medium voltage applications where the 3 phase conductors can be mounted within the same enclosure.
Circuit Breaker
ion
Non-segregated Phase Bus
conductor
24. 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 -
Retail Substation
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
Generator off-line
semiconductor
25. A circuit with a complete path - which allows for charges to move
electric generator
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
Switchgear
closed circuit
26. Building blocks of elements consisting of a positively charged nucleus surrounded by electrons
Battery Rooms
atom
Swtichyard
DC
27. 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.
electrons
A motor control center (MCC
superconductor
ion
28. A voltage source that does not change polarity such as that delivered from a battery.
DC
insulator
Retail Substation
orbital
29. A fundamental quantity in electricity (+ or -)
Transients
charge
Isolated Phase Bus (IPB)
Retail Lines
30. Total Current entering a junction must equal current leaving a junction
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183
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
charge
Battery
electric generator
PSB-1
32. 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
General Design Criterion 17 (GDC-17)
Non-segregated Phase Bus
Ohm's Law
semiconductor
33. 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.
reduced voltage
Normal Operation
Load center
electrons
34. Large battery - a battery charger - and a distribution panel
orbital
Fault
DC system is made up of 3 parts. What are they?
High Voltage Lines
35. Is measured in watts and represents the power consumed by the resistive elements in an AC circuit
Swtichyard
electrode
electricity
Real Power
36. Positively charged particles of an atom
Generator off-line
protons
PSB-1
High Voltage Lines
37. The path of an electron in an atom or molecule
insulator
orbital
Fault
static electricty
38. A circuit with a break in its path
open circuit
Disconnect switches
static electricty
Battery
39. 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
Ohm's Law
Current transformers (CTs)
Transmission Substation
electrolyte
40. 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.
orbital
Nuclear energy
anode
Transformer (smaller)
41. The source voltage is equal to the sum of the voltage drops across the elements of the circuit and the load.
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42. 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
Isolated Phase Bus (IPB)
Retail Lines
superconductor
Transformer (smaller)
43. 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
High Voltage Lines
Swtichyard
Fault
Simple Circuite Contains?
44. 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.
Nuclear energy
circuit
Circuit Breaker
Kirchoff's Voltage Law
45. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.
Load center breakers
Transformer (smaller)
open circuit
Nuclear energy
46. A solid conductor through which a current enters or exits a medium
electrode
Three Phase Power
Distribution System
Apparent Power
47. Is the vector sum of real and reactive power in an AC circuit and is measured in volt-amperes.
Caution around DC Circuits
reduced voltage
Switchgear
Apparent Power
48. Analogous to a power plant switchyard but on the load end. Voltage is stepped down to Distribution System voltages.
Transmission Substation
Caution around DC Circuits
Current transformers (CTs)
neutrons
49. One or more cells connected in series
battery
Transistors
Nuclear energy
Ohm's Law
50. Voltage Source - Conductor - Switch - Load
reduced voltage
Distribution System
Simple Circuite Contains?
Transistors