Plant Maintenance Executive Interview Questions and Answers

The type of hydraulic oil used in the gear box of a tape plant is typically ISO VG 32 or ISO VG 46.

• ISO VG 32 or ISO VG 46 are commonly used hydraulic oils in gear boxes of tape plants.

• The choice of hydraulic oil depends on the specific requirements of the gear box and the manufacturer's recommendations.

• It is important to use the correct viscosity grade and type of hydraulic oil to ensure proper lubrication and performance of the gear box.

The ideal TDS of water for plant operations varies depending on the type of plant and its specific needs.

• The ideal TDS level can range from 0 to 5000 ppm (parts per million) depending on the type of plant and its requirements.

• Some plants may require higher TDS levels for optimal growth and nutrient uptake, while others may be more sensitive to high TDS levels.

• It is important to regularly monitor and adjust the TDS levels of water used for plant operations to ensure optimal gr...read more

Various types of machinery are used for water filtration including sand filters, activated carbon filters, reverse osmosis systems, and UV disinfection units.

• Sand filters are used to remove large particles from water.

• Activated carbon filters are effective in removing organic compounds and chlorine.

• Reverse osmosis systems use a membrane to remove impurities from water.

• UV disinfection units use ultraviolet light to kill bacteria and viruses in water.

I would use an adjustable spanner to tighten the M8 bolt.

• Use an adjustable spanner to tighten the M8 bolt

• Ensure the spanner fits securely on the bolt head

• Turn the spanner clockwise to tighten the bolt

• Check the bolt regularly to prevent it from loosening again