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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 circuit with a break in its path
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
atom
Switchgear
open circuit
2. A voltage source that does not change polarity such as that delivered from a battery.
A motor control center (MCC
Molded case circuit breakers (MCCBs)
Generator
DC
3. Temperature Controlled
cathode
Battery Rooms
Kirchoff's Voltage Law
Panelboard
4. A material that is usually insulated but becomes conductive through the addition of an impurity
semiconductor
Switchgear
Simple Circuite Contains?
Retail Substation
5. Is typically used for medium voltage applications where the 3 phase conductors can be mounted within the same enclosure.
Molded case circuit breakers (MCCBs)
charge
Non-segregated Phase Bus
Transformer (smaller)
6. An electrode where reduction occurs
Load center breakers
Transformer (smaller)
cathode
closed circuit
7. The path of an electron in an atom or molecule
Transformer (smaller)
Retail Lines
orbital
Real Power
8. Are used at low voltages rather than medium voltage and they contain CTs and protective devices as part of the assembly.
Reactive Power
Isolated Phase Bus (IPB)
Load center breakers
orbital
9. (analogous to flow) predominantly flows on the surface of the conductor.
Retail Lines
Battery Rooms
superconductor
Current
10. The flow of electrons (-) through a material
current electricity
battery
Power
Simple Circuite Contains?
11. An energy storage device that converts chemical energy to electricity when power is needed.
ion
Retail Substation
Current transformers (CTs)
Battery
12. A fundamental quantity in electricity (+ or -)
charge
Fault
Diodes
Ohm's Law
13. Main Generator feeds main transformer - aux transformer (to aux loads) and crosstie to train B
Normal Operation
open circuit
electric generator
neutrons
14. The instantaneous movement from negatively charged atoms to positively charged atoms
SR Sources of power
static electricty
Distribution System
conductor
15. 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
Panelboard
ion
Transformer
Swtichyard
16. Used in numerous applications to amplify or perform switching operations.
Current
closed circuit
Transistors
reduced voltage
17. 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
protons
Transformer
Disconnect switches
Switchgear
18. 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.
circuit
Normal Operation
Transformer
Current
19. Any path that electrons flow through
Transmission Substation
circuit
Diodes
battery
20. Atoms that have acquired an electrical charge
charge
Battery
ion
Non-segregated Phase Bus
21. Building blocks of elements consisting of a positively charged nucleus surrounded by electrons
Load center
Molded case circuit breakers (MCCBs)
atom
battery
22. Negatively charged particles of an atom
Battery
electrons
semiconductor
Molded case circuit breakers (MCCBs)
23. 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.
Load center
closed circuit
DC
atom
24. A material through which a charge does not move easily
anode
insulator
Apparent Power
SR Sources of power
25. 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.
Current
A motor control center (MCC
Nuclear energy
High Voltage Lines
26. The flow of electrons
electricity
Three Phase Power
electrons
orbital
27. Total Current entering a junction must equal current leaving a junction
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
open circuit
PSB-1
static electricty
A motor control center (MCC
29. 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 ****
superconductor
electrolyte
Fault
DC system is made up of 3 parts. What are they?
30. Changes in voltage caused by motor starts or other loads being switched onto an electrical system
Transients
semiconductor
Disconnect switches
Nuclear energy
31. A circuit with a complete path - which allows for charges to move
static electricty
Simple Circuite Contains?
closed circuit
electric generator
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 -
PSB-1
protons
Reactive Power
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
33. 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.
Distribution System
transformer
current electricity
Circuit Breaker
34. May be used to power various low voltage loads and are typically used for applications that do not require any form of remote control.
semiconductor
Panelboard
General Design Criterion 17 (GDC-17)
PSB-1
35. 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.
Non-segregated Phase Bus
Circuit Breaker
Simple Circuite Contains?
Caution around DC Circuits
36. 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)
Three Phase Power
ion
Disconnect switches
37. An electrode where free electrons are produced
Transformer (smaller)
Load center breakers
anode
electrolyte
38. Analogous to a power plant switchyard but on the load end. Voltage is stepped down to Distribution System voltages.
orbital
High Voltage Lines
electricity
Transmission Substation
39. The source voltage is equal to the sum of the voltage drops across the elements of the circuit and the load.
40. A solid conductor through which a current enters or exits a medium
DC system is made up of 3 parts. What are they?
A motor control center (MCC
General Design Criterion 17 (GDC-17)
electrode
41. 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.
transformer
SR Sources of power
Molded case circuit breakers (MCCBs)
Changes that need to be analyzed to determine impact on voltage - cable and breaker ratings - as well as battery capacity
42. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.
Disconnect switches
Transformer (smaller)
electric generator
conductor
43. 125 and 250 VDC.
Generator off-line
A motor control center (MCC
neutrons
Typical DC system voltage ratings used in NPPs
44. Neutral charged particles of an atom
neutrons
Kirchoff's Current law
Circuit Breaker
Battery Rooms
45. Is measured in watts and represents the power consumed by the resistive elements in an AC circuit
Battery Rooms
electrolyte
Real Power
Transients
46. Voltage is stepped down again to serve smaller industrial and commercial customers as well as residential needs.
electrons
Retail Substation
General Design Criterion 17 (GDC-17)
neutrons
47. Used to optimize power output. Multiply by root 3.
Switchgear
Three Phase Power
Power
Real Power
48. Offsite power comes in via sartup transformer and some sites can backfeed power from grid via the main transformer OR even a crosstie
circuit
Generator off-line
conductor
Ohm's Law
49. A device that changes mechanical energy into electricity
Generator
Apparent Power
superconductor
electric generator
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
Normal Operation
Kirchoff's Voltage Law
Retail Lines
Transformer (smaller)