Piping Stress Engineer Interview Questions and Answers

SIF stands for Stress Intensification Factor. B31.1 and B31.3 are ASME codes for power piping and process piping, respectively.

• SIF is a factor used to account for the increase in stress at a specific location in a piping system due to various factors such as geometry, loads, and material properties.

• B31.1 is the ASME code for power piping, which covers piping systems typically found in power plants, industrial facilities, and heating systems.

• B31.3 is the ASME code for process ...read more

Pipe fittings are used to connect pipes of different sizes and shapes, allowing for changes in direction and flow of fluids.

• Types of pipe fittings include elbows, tees, reducers, couplings, unions, and caps

• Pipe fittings can be made of materials such as steel, copper, PVC, and brass

• They are used in various industries including plumbing, oil and gas, and chemical processing

Stress is a scalar quantity.

• Stress is a scalar quantity because it only has magnitude and no direction.

• It is represented by a single value, such as pressure or force per unit area.

• Examples of scalar quantities include temperature, mass, and volume.

SIF stands for Stress Intensification Factor. It is a dimensionless factor used in piping stress analysis to account for local stress concentrations.

• SIF is used to calculate the maximum stress in a piping system at locations where there are changes in geometry, such as elbows, tees, and reducers.

• It is a multiplier applied to the nominal stress to account for the increased stress caused by the local geometry.

• SIF values are typically obtained from industry standards and codes, ...read more

Sustain stress formula calculates the maximum allowable stress for a given material under sustained loading.

• Sustain stress formula is used in piping stress analysis to determine the maximum allowable stress for a given material under sustained loading.

• The formula takes into account the material's yield strength, ultimate tensile strength, and safety factor.

• Sustain stress formula is expressed as S = (Sy/FS) + (Su/FS) * (1 - (Sy/2Su))

• Where S is the maximum allowable stress, Sy ...read more

Support types in piping systems include various configurations to manage stress and displacement, with distances varying by application.

• Types of supports include: fixed supports, spring supports, and sliding supports.

• Fixed supports restrict all movement and are typically placed every 10-15 feet.

• Spring supports allow for vertical movement and are used in areas with thermal expansion.

• Sliding supports permit horizontal movement and are often spaced 15-20 feet apart.

• Example: A fi...read more