10+ Mechgreen Manufacturing Interview Questions and Answers

Cooling tower COC can be checked by measuring the concentration of dissolved solids in the cooling water.

• Collect a sample of cooling water from the tower basin.

• Measure the concentration of dissolved solids in the sample using a conductivity meter or a refractometer.

• Divide the concentration of dissolved solids in the sample by the concentration of dissolved solids in the makeup water to get the COC.

• A COC of 3-5 is typically recommended for cooling towers.

• Regular monitoring of ...read more

The type of extruder oil pump depends on the specific requirements of the extruder machine.

• The pump should be able to handle the viscosity and temperature of the oil being used.

• The pump should be able to provide a consistent flow rate.

• Common types of pumps used in extruder machines include gear pumps, screw pumps, and piston pumps.

• The choice of pump also depends on the size and capacity of the extruder machine.

Raw materials used in polyester include petroleum, coal, air, and water.

• Polyester is made from a chemical reaction between an acid and an alcohol.

• The acid used is typically terephthalic acid or dimethyl terephthalate.

• The alcohol used is typically ethylene glycol.

• Other raw materials used in the production of polyester include catalysts and stabilizers.

• Polyester production is heavily reliant on petroleum and coal as sources of raw materials.

I deserve a hike of Rs. 12000 because of my increased responsibilities, exceptional performance, and market value.

• Increased responsibilities: I have taken on additional tasks and projects that require more skills and effort.

• Exceptional performance: I have consistently exceeded targets and received positive feedback from clients and colleagues.

• Market value: I have researched the market and found that professionals with similar qualifications and experience are earning higher s...read more

Equipment handling refers to the safe and proper management of machinery and tools.

• It involves understanding the equipment's capabilities and limitations

• Properly storing and maintaining equipment

• Following safety protocols when operating equipment

• Training others on how to use equipment safely

• Examples include handling heavy machinery, power tools, and electrical equipment

The zones in an extruder are feed zone, compression zone, melting zone, metering zone, and die zone.

• Feed zone: where the raw material is fed into the extruder

• Compression zone: where the material is compressed and heated

• Melting zone: where the material melts and becomes homogenous

• Metering zone: where the melted material is metered and pushed towards the die

• Die zone: where the material is shaped and exits the extruder as a finished product

The primary language used in our office is English.

• English is the main language spoken and written in our office

• All official communication and documentation is in English

• Employees are expected to be proficient in English for effective communication

GC and HPLC are both analytical techniques used to separate and analyze mixtures of compounds.

• GC separates compounds based on their volatility and boiling points, while HPLC separates compounds based on their polarity and size.

• GC uses a gas as the mobile phase and a solid or liquid stationary phase, while HPLC uses a liquid as the mobile phase and a solid stationary phase.

• GC is typically used for volatile and semi-volatile compounds, while HPLC is used for non-volatile compou...read more

There are 5 types of zones in various fields including manufacturing, environmental, and safety.

• Manufacturing zones: raw material, production, finished goods, maintenance, and shipping

• Environmental zones: polar, temperate, tropical, arid, and mountainous

• Safety zones: red, orange, yellow, blue, and green

• Geographic zones: time, climate, vegetation, soil, and landforms

• Healthcare zones: critical, intensive, intermediate, self-care, and wellness