Unicohire Interview Questions and Answers

Preventive maintenance is scheduled maintenance to prevent equipment failure. Predictive maintenance uses data to predict when maintenance is needed.

• Preventive maintenance involves regularly scheduled maintenance to prevent equipment failure.

• Predictive maintenance uses data to predict when maintenance is needed, based on factors such as usage, wear and tear, and environmental conditions.

• Examples of preventive maintenance include changing oil in a car every 3,000 miles or repl...read more

Why-Why analysis is important for identifying root causes of breakdowns.

• Why-Why analysis helps to identify the underlying causes of a problem by asking 'why' multiple times.

• It helps to identify the root cause of the problem and prevent it from recurring in the future.

• For example, if a machine breaks down, asking 'why' multiple times can help to identify if it was due to lack of maintenance, faulty parts, or operator error.

• By addressing the root cause, it can lead to improved ...read more

Machine maintenance refers to the process of ensuring that machines are in good working condition to prevent breakdowns and prolong their lifespan.

• Regular inspection and cleaning of machines

• Replacing worn-out parts

• Lubricating moving parts

• Testing machines to ensure they are functioning properly

• Creating a maintenance schedule to ensure timely upkeep

• Training employees on proper machine use and maintenance

• Examples: oil changes for cars, replacing air filters for HVAC systems, cle...read more

Preventive maintenance is a proactive approach to maintenance that involves regular inspections and repairs to prevent equipment failure.

• Regular inspections and maintenance are scheduled to prevent equipment failure

• Preventive maintenance reduces downtime and extends equipment lifespan

• Examples include changing oil and filters, cleaning equipment, and replacing worn parts

• Preventive maintenance can be time-based or condition-based

PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes. Relay is an electromechanical switch used to control high power devices.

• PLC is used to control industrial processes such as assembly lines, robotic devices, and lighting systems.

• Relays are used to control high power devices such as motors, heaters, and lighting systems.

• PLCs are programmed using ladder logic or other programming languages.

• Relays are con...read more