Technique Control Facility Management Senior Electrical Technician Interview Questions, Process, and Tips

The refrigeration cycle is a process of removing heat from a space or substance. Types of chillers include absorption, centrifugal, and reciprocating.

• The refrigeration cycle involves four main components: compressor, condenser, expansion valve, and evaporator

• Absorption chillers use a heat source to drive the refrigeration cycle, while centrifugal and reciprocating chillers use mechanical energy

• Centrifugal chillers are ...read more

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to step up or step down voltage levels in electrical power transmission and distribution systems.

• They consist of two or more coils of wire, known as windings, which are wound around a core made of magnetic material.

• The primary winding is connected to the power source, ...read more

A fire alarm system is a network of devices that detect and alert people to the presence of fire or smoke.

• Fire alarm systems can include smoke detectors, heat detectors, and manual pull stations.

• When a device detects smoke or heat, it sends a signal to a control panel, which activates alarms and alerts authorities.

• Fire alarm systems are essential for protecting people and property from the dangers of fire.

• Examples of p...read more

Bukolze relays are used in electrical engineering for their high reliability and ability to handle high voltage and current.

• Bukolze relays are known for their robustness and durability.

• They are commonly used in power systems and industrial applications.

• These relays can handle high voltage and current levels, making them suitable for heavy-duty operations.

• They provide reliable switching and protection in electrical circ...read more

CT and PT are used in electrical engineering for measurement and protection purposes.

• CT (Current Transformer) is used to measure high currents and step them down to a level suitable for measurement instruments.

• PT (Potential Transformer) is used to measure high voltages and step them down to a level suitable for measurement instruments.

• CTs and PTs are also used for protection purposes, such as detecting faults and isola...read more

The number of transformer production varies depending on the company and market demand.

• The number of transformer production is influenced by factors such as market demand, company size, and production capacity.

• Large transformer manufacturers may produce thousands of transformers per year.

• Smaller companies or custom transformer manufacturers may have lower production volumes.

• The production volume can also vary based on ...read more

There are several types of breakers used in electrical engineering.

• Circuit breakers are used to protect electrical circuits from overloads and short circuits.

• Some common types of breakers include thermal, magnetic, and hydraulic-magnetic breakers.

• Thermal breakers use a bimetallic strip to detect excessive heat and trip the circuit.

• Magnetic breakers use a solenoid to detect high currents and trip the circuit.

• Hydraulic-m...read more