LG Electronics Supervisor Interview Questions and Answers

Improved efficiency of production line at XYZ manufacturing plant

• Implemented lean manufacturing principles to reduce waste and increase productivity

• Introduced automation in certain processes to reduce manual labor and increase accuracy

• Optimized supply chain management to ensure timely delivery of raw materials

• Trained and empowered employees to identify and solve problems on the production line

• Implemented a continuous i...read more

The refrigeration cycle is a thermodynamic process that removes heat from a designated area to lower its temperature.

• 1. Evaporation: Refrigerant absorbs heat from the environment, turning from liquid to gas.

• 2. Compression: The gas is compressed, increasing its pressure and temperature.

• 3. Condensation: The hot gas releases heat to the surroundings, condensing back into a liquid.

• 4. Expansion: The liquid refrigerant expan...read more

Chillers and VRF systems differ in design, application, and efficiency, with various compressor types influencing performance.

• Chillers are centralized cooling systems, while VRF systems are decentralized and allow for individual zone control.

• Chillers typically use water or refrigerant to cool large buildings, e.g., centrifugal chillers for commercial use.

• VRF systems use refrigerant as the cooling medium and can simulta...read more

COP measures efficiency in heating/cooling systems; heat load calculations determine required capacity for HVAC systems.

• COP (Coefficient of Performance) is the ratio of useful heating or cooling provided to the energy consumed.

• Heat load calculations assess the thermal energy needed to maintain desired indoor temperatures.

• Types of PCBs (Printed Circuit Boards) in VRF (Variable Refrigerant Flow) systems include control P...read more