Otis Elevator Site Engineer Interview Questions and Answers for Experienced

Bus bar schemes are different ways of connecting bus bars in power systems.

• Single bus bar scheme

• Double bus bar scheme

• Main and transfer bus bar scheme

• Ring bus bar scheme

• Breaker and a half scheme

• Mesh bus bar scheme

The equipment sequence for any line bay starts with the circuit breaker and ends with the transformer.

• The circuit breaker is the first equipment in the sequence.

• Next comes the isolator switch.

• After that, the earth switch is operated.

• Then the line disconnector is opened.

• Finally, the transformer is disconnected from the line.

• The sequence is reversed when the line bay is put back into service.

Increasing product efficiency can be achieved through optimizing processes, improving technology, and enhancing employee skills.

• Optimize production processes to eliminate waste and improve workflow

• Upgrade technology to automate tasks and improve accuracy

• Provide training and development opportunities for employees to enhance their skills and knowledge

I would improve the user interface to enhance user experience and streamline navigation.

• Enhance user interface design for better usability

• Streamline navigation to improve user experience

• Implement user feedback to make necessary changes

• Optimize performance for faster loading times

Types of process include batch process, continuous process, and hybrid process.

• Batch process involves processing a set amount of materials at one time

• Continuous process involves ongoing production without interruption

• Hybrid process combines elements of both batch and continuous processes