Leadec India Maintenance Engineer Interview Questions and Answers for Experienced

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

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

Various tests can be done at site to ensure concrete quality.

• Slump test to measure consistency

• Compression test to measure strength

• Air content test to measure air voids

• Temperature test to ensure proper curing

• Rebound hammer test to measure surface hardness

• Ultrasonic test to detect internal defects

• Chloride ion penetration test to measure durability

• Water permeability test to measure resistance to water penetration