Liebherr Production Line Incharge Interview Questions and Answers

Overall equipment effectiveness (OEE) is a measure of how well a manufacturing process is performing.

• OEE is calculated by multiplying availability, performance, and quality rates.

• It helps identify areas for improvement in production processes.

• Example: If a machine has an availability of 90%, performance of 95%, and quality of 98%, the OEE would be 83.7%.

A ball screw is a mechanical linear actuator that translates rotational motion to linear motion.

• Consists of a screw shaft with a ball nut that moves along the threads of the screw

• Ball bearings in the nut reduce friction and allow for smooth motion

• Used in various applications such as CNC machines, robotics, and aerospace industry

A spindle cross section is a diagram showing the internal structure of a spindle used in machinery.

• Spindle cross section typically shows the arrangement of bearings, shaft, and other components inside the spindle.

• It helps in understanding the functionality and design of the spindle.

• Examples of components shown in a spindle cross section include ball bearings, housing, and lubrication system.

Different types of bearings include ball bearings, roller bearings, and plain bearings, each with specific applications.

• Ball bearings are used in applications requiring low friction and high speed, such as in wheels and conveyor belts.

• Roller bearings are suitable for heavy radial loads, like in automotive transmissions and industrial machinery.

• Plain bearings, also known as bushings, are used in applications where lubri...read more

Roller bearings have cylindrical rollers while spherical bearings have spherical rollers for increased load capacity and misalignment compensation.

• Roller bearings have cylindrical rollers that distribute load evenly across a larger surface area

• Spherical bearings have spherical rollers that allow for misalignment compensation

• Roller bearings are more suitable for high radial loads while spherical bearings are better for ...read more

I have extensive exposure in Automation, including programming languages and tools.

• Proficient in programming languages such as Python, Java, and C++

• Experience in using automation tools like Selenium, Appium, and Jenkins

• Developed automated test scripts for web and mobile applications

• Implemented automation frameworks for efficient testing

• Familiar with continuous integration and deployment (CI/CD) pipelines

Yes, I have worked with various types of cranes including tower cranes, mobile cranes, and overhead cranes.

• Tower cranes: used for tall construction projects such as skyscrapers

• Mobile cranes: used for lifting heavy objects and transporting them to different locations

• Overhead cranes: used in factories and warehouses for moving heavy materials

Yes, I have knowledge in Hoist drive application.

• I have experience in troubleshooting and repairing hoist drives.

• I am familiar with different types of hoist drives such as electric, hydraulic, and pneumatic.

• I have worked with hoist drives in various industries including construction and manufacturing.

• I am knowledgeable in the maintenance and safety procedures for hoist drives.

• I am able to read and interpret technical d