Avery Dennison Maintenance Engineer Interview Questions and Answers

Preventive maintenance is a proactive approach to maintenance that aims to prevent equipment failure before it occurs.

• Regularly scheduled inspections and maintenance

• Replacing worn or damaged parts before they cause a breakdown

• Cleaning and lubricating equipment to prevent wear and tear

• Keeping accurate records of maintenance activities

• Examples: changing the oil in a car, replacing air filters in HVAC systems, inspecting

SAP PM module is used for managing maintenance activities of an organization.

• PM stands for Plant Maintenance

• It helps in planning and scheduling maintenance tasks

• Tracks equipment and maintenance history

• Provides cost analysis and reporting

• Integrates with other SAP modules like MM and FI

• Example: A manufacturing company can use SAP PM to schedule maintenance of their production equipment

I have handled various utilities equipments including generators, chillers, HVAC systems, and water treatment plants.

• Generators: responsible for maintenance and repair of diesel and gas generators

• Chillers: handled installation and maintenance of air-cooled and water-cooled chillers

• HVAC systems: managed repair and maintenance of heating, ventilation, and air conditioning systems

• Water treatment plants: responsible for op...read more

Bearings are used to reduce friction between two moving parts. There are several types of bearings.

• Plain bearings

• Rolling element bearings

• Jewel bearings

• Fluid bearings

• Magnetic bearings

VFD stands for Variable Frequency Drive, it is used to control the speed of an electric motor.

• VFD is used to vary the speed of an electric motor by adjusting the frequency of the electrical supply to the motor.

• Basic control for operating a VFD includes setting the desired speed or frequency, start/stop commands, and monitoring parameters like current and voltage.

• Examples of basic controls for operating a VFD include ke...read more

To check a motor, perform visual inspection, check for unusual noises or vibrations, test electrical connections, measure voltage and current, and perform insulation resistance test.

• Perform visual inspection for any signs of damage or wear

• Check for unusual noises or vibrations during operation

• Test electrical connections for tightness and proper wiring

• Measure voltage and current to ensure they are within specifications

• P...read more

The monthly electricity bill varies depending on usage and location.

• The monthly electricity bill can be influenced by factors such as the size of the property, number of occupants, energy efficiency of appliances, and local electricity rates.

• Usage of high-energy consuming appliances like air conditioners, heaters, and refrigerators can significantly impact the electricity bill.

• Location plays a role as electricity rates...read more

Plant load refers to the amount of power being consumed by a plant or facility at a given time.

• Plant load is measured in kilowatts (kW) or megawatts (MW).

• It represents the total electrical demand of the plant's equipment and machinery.

• Plant load can fluctuate throughout the day based on production needs and equipment usage.

• Monitoring plant load is important for ensuring efficient operation and preventing overload.

• Examp...read more

Power factor is the ratio of real power to apparent power in an electrical system. It needs to be maintained for efficient power transfer and to avoid penalties from utility companies.

• Power factor impacts the efficiency of power transfer in electrical systems

• Low power factor can result in higher energy costs and penalties from utility companies

• It affects the quality of power supply and can lead to voltage drops and equ...read more

Proximity sensors detect the presence of an object without physical contact, while relays are used to control electrical circuits.

• Proximity sensors use electromagnetic fields, light, or sound to detect objects nearby.

• Relays are switches that open or close circuits based on an electrical signal.

• Proximity sensors can be used in automated doors, smartphones, and industrial machinery.

• Relays are used in control panels, HVAC

Preventive maintenance schedule involves regular inspections and maintenance tasks to prevent equipment breakdowns.

• Create a detailed list of all equipment that needs maintenance

• Establish a regular schedule for inspections and maintenance tasks

• Document all maintenance activities and keep records for future reference

• Prioritize maintenance tasks based on criticality and impact on operations

• Train maintenance staff on prope