#1
Which wire color is typically used for the ground wire in residential electrical wiring?
#2
What is the standard voltage for residential lighting circuits in most countries?
110 volts
220 volts
240 volts
120 volts
#3
What is the purpose of a junction box in residential electrical wiring?
To connect wires together safely
To increase the voltage of the circuit
To control the flow of electricity
To provide illumination
#4
Which type of light bulb is the most energy-efficient for residential use?
Incandescent
Halogen
Compact Fluorescent (CFL)
Light Emitting Diode (LED)
#5
What is the purpose of a dimmer switch in residential lighting?
To control the color temperature of the light
To turn the light on and off remotely
To adjust the brightness of the light
To change the light fixture
#6
Which of the following is NOT a typical cause of electrical outlet failure in residential settings?
Overloading the outlet
Moisture exposure
Mechanical damage
Excessive heat production
#7
Which type of electrical box is typically used for mounting light fixtures?
Metallic box
PVC box
Octagonal box
Rectangular box
#8
What is the purpose of a three-way switch in a residential lighting circuit?
To control the brightness of the light
To control the light from two different locations
To regulate the voltage of the circuit
To provide protection against electrical surges
#9
What is the recommended maximum number of outlets per circuit in a residential electrical system?
#10
What is the purpose of a GFCI (Ground Fault Circuit Interrupter) outlet?
To regulate the current flow
To provide surge protection
To prevent electric shocks
To increase energy efficiency
#11
What is the minimum clearance required around an electrical panel in a residential setting?
6 inches
12 inches
18 inches
24 inches
#12
Which of the following is NOT a type of residential lighting fixture?
Ceiling fan
Track light
Recessed light
Exhaust fan
#13
What does the term 'AWG' stand for in the context of electrical wiring?
Advanced Wiring Guide
Amperage Wire Gauge
American Wire Gauge
Ampere Watt Generator
#14
In a residential electrical system, what is the function of a circuit breaker?
To convert AC to DC
To protect against overcurrent
To increase voltage
To control the frequency of electricity
#15
In a residential electrical system, what does the term 'neutral' refer to?
The wire that carries the return current
The wire that carries the live current
The wire that connects to the ground
The wire that carries the highest voltage
#16
What is the purpose of an AFCI (Arc Fault Circuit Interrupter) breaker in residential electrical systems?
To regulate voltage
To provide surge protection
To prevent electrical fires
To increase energy efficiency
#17
What does the term 'conduit' refer to in residential electrical wiring?
A protective covering for wires
A type of electrical switch
A method of grounding electrical systems
A device used to measure electrical current