#1
Which of the following is a common method for terminating electrical conductors?
Soldering
ExplanationSoldering is a common method involving melting a filler metal to join and terminate electrical conductors.
#2
What is the purpose of a wire nut in electrical splicing?
To connect and secure wires together
ExplanationWire nut is used to connect and securely hold multiple wires together during electrical splicing.
#3
What is the purpose of a heat shrink tube in electrical terminations?
To insulate wires
ExplanationHeat shrink tubes are used in electrical terminations to insulate and protect wires.
#4
Which of the following materials is commonly used as insulation in electrical terminations?
Rubber
ExplanationRubber is commonly used as insulation material in electrical terminations, providing electrical insulation and protection.
#5
Which of the following tools is commonly used for stripping insulation from wires?
Wire stripper
ExplanationA wire stripper is a common tool used for precisely stripping insulation from wires in electrical work.
#6
Which of the following metals is commonly used for crimping electrical connectors?
Brass
ExplanationBrass is commonly used as a material for crimping electrical connectors.
#7
What is the purpose of a strain relief in electrical terminations?
To prevent mechanical stress on wires
ExplanationStrain relief is employed in electrical terminations to prevent mechanical stress and potential damage to wires.
#8
Which type of connector is commonly used for high-voltage electrical terminations?
Compression lug
ExplanationCompression lugs are commonly used for high-voltage electrical terminations, providing secure connections.
#9
What is the purpose of using a crimping tool in electrical work?
To secure connectors onto wires
ExplanationA crimping tool is utilized in electrical work to securely fasten connectors onto wires through a crimping process.
#10
What is the primary purpose of a crimp connector in electrical work?
To mechanically secure wires
ExplanationThe primary purpose of a crimp connector in electrical work is to mechanically secure and fasten wires.
#11
What is a tinning process in the context of electrical conductors?
Soldering the wire with tin
ExplanationTinning involves soldering the wire with tin, enhancing its conductivity and preventing corrosion.
#12
What is a disadvantage of using soldered connections in certain electrical applications?
Difficulty in making changes
ExplanationSoldered connections pose a disadvantage in certain applications due to the difficulty in making changes or modifications.
#13
In electrical splicing, what does 'butt splicing' refer to?
Connecting wires end-to-end
Explanation'Butt splicing' in electrical splicing refers to connecting wires end-to-end for a secure joint.
#14
What is the significance of using color-coded insulation in multi-conductor cables?
Facilitates identification of conductors
ExplanationColor-coded insulation in multi-conductor cables facilitates easy identification of individual conductors.
#15
In electrical splicing, what is a 'western union splice'?
A type of soldered joint
ExplanationA 'western union splice' in electrical splicing refers to a specific type of soldered joint.