National Fertilizers Graduate Apprenticeship Trainee Interview Questions and Answers

Shaft balancing in accordance with ISO 21940-11 and ISO 21940-12 standards involves reducing vibrations by adjusting the mass distribution along the shaft.

• Shaft balancing aims to minimize vibrations in rotating machinery by adjusting the mass distribution along the shaft.

• ISO 21940-11 specifies the balancing process for rigid rotors, while ISO 21940-12 covers the balancing of flexible rotors.

• Balancing involves adding or...read more

Equipment alignment involves ensuring that all components of a machine are properly positioned and oriented to work efficiently and accurately.

• Ensuring that all parts of the equipment are correctly positioned relative to each other

• Checking and adjusting the alignment of shafts, belts, gears, and other components

• Using precision tools such as laser alignment systems to achieve accurate alignment

• Proper alignment helps pre...read more

API STD 610 is a standard for centrifugal pumps for petroleum, petrochemical, and natural gas industries.

• API STD 610 specifies requirements for centrifugal pumps used in the petroleum, petrochemical, and natural gas industries.

• It covers design, materials, testing, and performance of centrifugal pumps.

• The standard also includes guidelines for pump selection, installation, operation, and maintenance.

• API STD 610 helps ens...read more

API 510 is used for pressure vessel inspection and maintenance in accordance with industry standards.

• API 510 is a widely recognized standard for the inspection, repair, alteration, and rerating of pressure vessels.

• It ensures that pressure vessels are maintained in a safe and reliable condition.

• By following API 510 guidelines, maintenance engineers can ensure compliance with industry standards and regulations.

• Using API ...read more

A filler gauge is a tool used to measure the gap between two objects.

• Filler gauges are commonly used in maintenance to check clearances between parts

• They are typically made of a set of thin metal blades of varying thickness

• The user selects the appropriate blade that fits snugly in the gap being measured

• Filler gauges are useful for ensuring proper tolerances in machinery and equipment

The least count diameter refers to the smallest increment that can be measured on a diameter scale.

• Least count diameter is the smallest division that can be measured on a diameter scale.

• It is typically determined by the precision of the measuring instrument being used.

• For example, if a micrometer has a least count of 0.01 mm, it means that it can measure diameter increments in 0.01 mm intervals.

I am responsible for maintaining and repairing various parts in the machinery and equipment.

• I am familiar with the different types of bearings used in machinery such as ball bearings, roller bearings, and sleeve bearings.

• I have experience in troubleshooting and replacing faulty bearings to ensure smooth operation of the equipment.

• I work closely with the procurement team to ensure we have an adequate supply of bearings ...read more