Viatris Interview Questions and Answers

Piston rings are of three types - compression, oil control, and scraper. Compression rings seal the combustion chamber, oil control rings regulate oil consumption, and scraper rings prevent oil from entering the combustion chamber.

• Three types of piston rings - compression, oil control, and scraper

• Compression rings seal the combustion chamber

• Oil control rings regulate oil consumption

• Scraper rings prevent oil from entering the combustion chamber

Intercooler and after cooler are used in air compressor to increase efficiency and reduce temperature.

• Intercooler cools the compressed air between stages to reduce the temperature and volume of air before it enters the next stage.

• After cooler cools the compressed air after the final stage to remove moisture and reduce the temperature before it enters the air receiver.

• Using intercooler and after cooler increases the efficiency of the compressor and reduces the risk of damage t...read more

Draw the front view of M-16 bolt with 80mm height.

• Start by drawing a rectangle with the height of 80mm

• Divide the rectangle into three parts: the head, the body, and the tail

• Draw the head with a circular shape and the body with a rectangular shape

• Add the tail with a triangular shape

• Include the necessary details such as the locking lugs and extractor grooves

A stuffing box is a device used to seal a rotating shaft and prevent leakage of fluid or gas.

• It is commonly used in pumps, compressors, and other rotating equipment.

• It consists of a gland, packing material, and a compression mechanism.

• The packing material is compressed against the shaft to create a seal.

• It requires periodic maintenance to ensure proper functioning.

• Examples include the stuffing box in a water pump or the stern tube of a ship.

A side view of a piston without dimensions.

• Draw a cylindrical shape with a flat top and bottom

• Add a smaller cylindrical shape on top of the flat top

• Draw a diagonal line from the top of the smaller cylinder to the bottom of the larger cylinder

• Add a curved line connecting the top of the smaller cylinder to the larger cylinder

• Draw a small circle in the center of the larger cylinder