Sodexo Mst Electrician Interview Questions and Answers

Transformer work involves installing, maintaining, and repairing electrical transformers.

• Installing new transformers in buildings or industrial sites

• Performing routine maintenance on transformers to ensure they are functioning properly

• Repairing faulty transformers to restore functionality

• Testing transformers to ensure they are operating within specifications

Transformer parts include core, windings, insulation, and terminals.

• Core: Provides magnetic path for the transformer

• Windings: Conductors that carry current and create magnetic field

• Insulation: Prevents short circuits between windings

• Terminals: Connect transformer to external circuit

• Examples: Enameled copper wire for windings, silicon steel for core

Timing joining refers to the process of connecting electrical wires or components based on a specific timing sequence.

• Timing joining involves connecting electrical components in a specific order to ensure proper functioning.

• It is crucial in complex electrical systems where timing is essential for synchronization.

• Examples include connecting wires in a circuit board based on a predetermined timing sequence.

• It can also re...read more

I have 8 years of experience working as a Shift Engineer in various industries.

• I have 8 years of experience as a Shift Engineer

• Worked in various industries such as manufacturing, energy, and facilities management

• Experience in troubleshooting, maintenance, and operation of equipment

• Familiar with safety regulations and protocols

• Led teams in shift operations and coordinated with other departments

We used air circuit breakers in my previous company.

• We used air circuit breakers for their reliability and ease of maintenance.

• Air circuit breakers are commonly used in industrial settings for their high breaking capacity.

• Examples of air circuit breaker brands we used include Siemens and Schneider Electric.

Circuit breaker rating refers to the maximum current that the breaker can safely interrupt without causing damage.

• Circuit breaker rating is typically expressed in amps (e.g. 15A, 20A, 30A).

• The rating should be chosen based on the maximum current that will flow through the circuit.

• It is important to select a circuit breaker with a rating higher than the maximum current to prevent tripping.

• Using a circuit breaker with a ...read more

Cycle breaker maintenance involves regular inspection, testing, and replacement of components to ensure proper functioning.

• Inspecting for signs of wear or damage

• Testing functionality with appropriate equipment

• Replacing faulty components as needed

• Following manufacturer's guidelines for maintenance schedule

• Keeping detailed records of maintenance activities

33 kV to 220 SLD refers to a switchgear system for electrical distribution at medium voltage levels.

• 33 kV to 220 SLD likely refers to a switchgear system designed to handle voltages between 33 kV and 220 kV.

• SLD stands for Single Line Diagram, which is a schematic representation of the electrical distribution system.

• This switchgear system would be used for distributing electricity from a higher voltage transmission syst...read more

ACB stands for Air Circuit Breaker and VCB stands for Vacuum Circuit Breaker.

• ACB is a type of circuit breaker that operates in the air where the arc is drawn in the air and extinguished using air.

• VCB is a type of circuit breaker that operates in a vacuum where the arc is drawn in a vacuum and extinguished using vacuum.

• ACBs are commonly used in low voltage applications while VCBs are used in medium voltage applications.

• ...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