#1
Which organization sets the electrical wiring standards in the United States?
International Electrotechnical Commission (IEC)
National Electrical Manufacturers Association (NEMA)
Institute of Electrical and Electronics Engineers (IEEE)
National Electrical Code (NEC)
#2
What is the standard voltage for household electrical outlets in the United States?
110 volts
220 volts
240 volts
480 volts
#3
What is the abbreviation for the National Electrical Code?
#4
What does the term 'AWG' stand for in electrical wiring?
American Wiring Gauge
Automated Wiring Guide
Average Wiring Grid
Amperage Wire Gauge
#5
Which of the following wire colors is typically used to represent the 'ground' wire in electrical wiring?
#6
What is the minimum height requirement for electrical outlets above the floor in residential buildings according to the NEC?
12 inches
16 inches
18 inches
24 inches
#7
Which of the following is NOT a type of electrical wiring commonly used in residential buildings?
#8
What does the abbreviation 'EMT' stand for in electrical wiring?
Electrical Metallic Tubing
Energy Management Technology
Electronic Metering Technique
Electric Motor Transformer
#9
Which electrical wiring color is typically used for the 'hot' wire in the United States?
#10
Which organization is responsible for developing electrical standards in Europe?
International Electrotechnical Commission (IEC)
European Committee for Electrotechnical Standardization (CENELEC)
National Electrical Manufacturers Association (NEMA)
Institute of Electrical and Electronics Engineers (IEEE)
#11
In electrical wiring, what is the function of a junction box?
To connect multiple electrical circuits
To provide insulation for wires
To protect against electrical overloads
To provide access to electrical connections
#12
What is the purpose of GFCI (Ground Fault Circuit Interrupter) outlets?
To regulate voltage fluctuations
To protect against overcurrent
To prevent electrical shocks
To provide surge protection
#13
In electrical wiring, what is the function of a service panel?
To provide electrical outlets
To distribute electricity to circuits
To ground electrical systems
To protect against lightning strikes
#14
What is the purpose of conduit in electrical wiring installations?
To provide structural support for wiring
To protect wiring from damage
To insulate wiring from heat
To regulate electrical current
#15
What is the maximum number of conductors allowed in a single conduit according to NEC regulations?
#16
What is the purpose of bonding in electrical wiring?
To connect metal parts together to prevent electric shock
To provide insulation for wires
To regulate voltage fluctuations
To protect against lightning strikes
#17
Which type of electrical wiring is commonly used in high-temperature environments?
NM-B cable
THHN wire
UF cable
TECK cable