Ratnamani Metals and Tubes Graduate Engineer Interview Questions and Answers

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

Iron carbon diagram shows the relationship between carbon content and properties of steel.

• The diagram helps in understanding the microstructure of steel.

• It shows the different phases of steel at different carbon concentrations.

• Low carbon steel has less than 0.3% carbon, while high carbon steel has more than 0.6% carbon.

• Medium carbon steel has a carbon content between 0.3% and 0.6%.

• The diagram also helps in determining ...read more