Lloyds Metals And Energy Diploma Mechanical Engineer Interview Questions and Answers

Proxy is an intermediary server that acts as a gateway between clients and servers. SMPS is a power supply unit that converts AC to DC. Encoder is a device that converts motion into digital signals. Star delta is a method of starting three-phase motors.

• Proxy helps in hiding the identity of clients and servers.

• SMPS is commonly used in computers and other electronic devices.

• Encoders are used in robotics, automation, and ...read more

Preventive maintenance is scheduled maintenance to prevent breakdowns while predictive maintenance uses data to predict failures.

• Preventive maintenance involves regularly scheduled maintenance to prevent equipment breakdowns and prolong the lifespan of equipment.

• Predictive maintenance uses data analysis to predict when equipment failure is likely to occur, allowing for maintenance to be scheduled before a breakdown occ...read more

PLC stands for Programmable Logic Controller and HMI stands for Human Machine Interface.

• PLC is a digital computer used for automation of electromechanical processes.

• It is used to control machinery on factory assembly lines, amusement rides, or light fixtures.

• HMI is a graphical interface that allows humans to interact with machines.

• It provides a visual representation of the process being controlled by the PLC.

• Examples o...read more

Power factor can be managed by using capacitors, improving equipment efficiency, and reducing reactive power.

• Install capacitors to offset reactive power and improve power factor

• Upgrade equipment to more efficient models

• Reduce the amount of reactive power by optimizing operations

• Implement power factor correction techniques

• Regularly monitor and maintain power factor levels

Cold rolling mill uses pressure to reduce the thickness of metal sheets by passing them through rollers.

• Metal sheets are passed through rollers under high pressure to reduce thickness

• Rollers can be adjusted to achieve desired thickness and surface finish

• Cold rolling process increases strength and hardness of metal sheets

• Common metals processed in cold rolling mills include steel, aluminum, and copper