Ohmium Mechanical Engg. Design Interview Questions and Answers

Seals: mechanical, hydraulic, pneumatic. Bearings: ball, roller, plain, magnetic, fluid.

• Mechanical seals prevent leakage between two surfaces in relative motion.

• Hydraulic seals prevent leakage of fluid in hydraulic systems.

• Pneumatic seals prevent leakage of gas in pneumatic systems.

• Ball bearings use balls to reduce friction between two surfaces.

• Roller bearings use rollers to reduce friction between two surfaces.

• Plain b...read more

Types of maintenance include corrective, preventive, predictive, and proactive maintenance.

• Corrective maintenance involves fixing a problem after it has occurred.

• Preventive maintenance involves regularly scheduled maintenance to prevent problems from occurring.

• Predictive maintenance involves using data and analysis to predict when maintenance will be needed.

• Proactive maintenance involves identifying and addressing pote...read more

There are various types of seals used in blowers such as labyrinth seals, mechanical seals, and oil seals.

• Labyrinth seals are non-contact seals that use a series of rotating and stationary blades to create a tortuous path for the air to pass through.

• Mechanical seals use a rotating and stationary face to create a seal and prevent leakage.

• Oil seals are used to prevent lubricant from leaking out of the blower and contamin...read more