10+ St. Mary's Hospital Interview Questions and Answers

There is no standard frequency given for vibration as it varies depending on the application.

• The frequency of vibration depends on the type of equipment or structure being analyzed.

• For example, the frequency range for a car engine may be different from that of a wind turbine.

• Vibration standards such as ISO 10816 provide guidelines for acceptable levels of vibration in different types of machinery.

• Vibration analysis is important in identifying potential problems and preventing...read more

High frequency vibration is suitable for electronic component testing.

• High frequency vibration is used to test electronic components for durability and reliability.

• The vibration frequency should be within the resonant frequency range of the component being tested.

• Examples of suitable vibration frequencies are 10-2000 Hz for PCBs and 100-5000 Hz for MEMS devices.

Pipes are measured by their inner diameter, while tubes are measured by their outer diameter.

• Pipes are used for the transportation of fluids and gases, while tubes are used for structural applications.

• Pipes are typically round in shape, while tubes can be round, square, or rectangular.

• Pipes are manufactured to specific industry standards, while tubes can have more variation in size and shape.

• Examples: PVC pipe for plumbing, steel tube for construction.

ESS stands for Environmental Stress Screening, a process of exposing a product to environmental stresses to identify and eliminate potential defects.

• ESS is used to improve the reliability of a product by identifying and eliminating potential defects before it is released to the market.

• Environmental stresses such as temperature, humidity, vibration, and shock are applied to the product during ESS.

• ESS can be performed during the design phase or after the product has been manufa...read more