Construction Group Senior Foreman Interview Questions and Answers

A power cable is an electrical cable used for transmitting electrical power.

• Power cables are used to connect electrical equipment to a power source.

• They are typically made of copper or aluminum conductors surrounded by insulation and protective sheathing.

• Power cables come in various sizes and types, such as single-core, multi-core, armored, or non-armored.

• Examples of power cables include extension cords, overhead power...read more

Control cable is a type of electrical cable used to transmit control signals in industrial automation applications.

• Control cable is typically made up of multiple conductors, each with its own insulation.

• It is commonly used to connect sensors, switches, and other control devices to programmable logic controllers (PLCs) or other control systems.

• Control cable is often shielded to protect against electromagnetic interferen...read more

The diagram that shows how lights work is called an electrical wiring diagram.

• Electrical wiring diagram shows the connections between electrical components and how they are wired together.

• It includes symbols for switches, lights, and other electrical devices.

• It helps electricians understand how the electrical system works and troubleshoot problems.

• For example, a wiring diagram can show how a light switch controls a lig...read more

MCC panel stands for Motor Control Center panel.

• It is an assembly of one or more enclosed sections having a common power bus and principally containing motor control units.

• It is used to control and distribute power to electric motors.

• It is commonly used in industrial and commercial settings.

• It can be customized to meet specific needs of the facility or application.

• Examples of MCC panel manufacturers include Siemens, Sc

A power panel is an electrical distribution board that receives power from a main source and distributes it to various circuits.

• It is also known as a distribution board or breaker panel

• It contains circuit breakers or fuses to protect the circuits from overloading

• It can be found in residential, commercial, and industrial buildings

• Examples include the main breaker panel in a house or the electrical room in a factory

A two-way switch is installed by connecting the wires to the appropriate terminals on the switch.

• Identify the two-way switch and its terminals

• Connect the live wire to the common terminal

• Connect the two switch wires to the two remaining terminals

• Ensure all connections are secure and insulated

• Test the switch to ensure it is working properly

XLPE cable is a type of electrical cable with cross-linked polyethylene insulation.

• XLPE stands for cross-linked polyethylene.

• XLPE cable has better electrical and mechanical properties than PVC cable.

• XLPE cable is commonly used in power distribution and transmission systems.

• XLPE cable can handle higher temperatures than PVC cable.

• XLPE cable is more expensive than PVC cable.

Cat 5&6 cables are used for high-speed data transmission in networking applications.

• Cat 5&6 cables have higher bandwidth capabilities than older cables like Cat 3.

• They can support faster data transfer rates and are less susceptible to interference.

• Cat 5&6 cables are commonly used in Ethernet networks, VoIP systems, and video surveillance systems.

• They are also used for home networking and internet connections.

• Cat 6 cabl...read more