DOOSAN Mechanical Supervisor Interview Questions and Answers

Materials used in Aero-Engines include titanium, nickel-based superalloys, and composites.

• Titanium is used for components like compressor blades and discs due to its high strength-to-weight ratio.

• Nickel-based superalloys are used for high temperature components like turbine blades.

• Composites, such as carbon fiber reinforced polymers, are used for fan blades and other parts to reduce weight and improve fuel efficiency.

Concentricity is the condition where two or more features share a common center point, while run out is the amount of deviation from true circularity of an object.

• Concentricity refers to the tolerance of the center point of a feature relative to another feature or axis.

• Run out is the measurement of how much a part deviates from a true circular path when rotated around an axis.

• Concentricity is important for ensuring pro...read more

A pump is a mechanical device used to move fluids from one place to another by creating pressure.

• Pumps are commonly used in various industries such as water treatment, oil and gas, and manufacturing.

• There are different types of pumps including centrifugal pumps, positive displacement pumps, and diaphragm pumps.

• Pumps can be powered by electricity, engines, or manual operation.

• Examples of pumps include water pumps in hom...read more

Alignment is the process of ensuring that components are in the correct position relative to each other.

• Alignment involves adjusting the position of components to ensure they are in the correct orientation and location.

• This process is crucial for proper functioning of machinery and equipment.

• Alignment can be achieved using tools such as laser alignment systems or precision measuring instruments.

• Examples of alignment in...read more