Burns & McDonnell Piping Stress Engineer Interview Questions and Answers

Q1. Expansion stress formula
Ans. 
Expansion stress formula calculates the stress caused by thermal expansion or contraction.
• Expansion stress formula is given by: ΔL/L = αΔT, where ΔL is the change in length, L is the original length, α is the coefficient of thermal expansion, and ΔT is the change in temperature.

• The formula can be used to calculate the stress caused by thermal expansion or contraction in piping systems.

• The formula assumes that the mater...read more
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Q2. IBR LINES details.pressure ratings etc
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Q3. Sustain stress formula
Ans. 
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) * ...read more
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Q1. Patch load on towers
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Patch load on towers refers to the additional weight or load that is applied to a tower structure to strengthen or modify its capacity.
• Patch load can be applied to towers to increase their capacity to withstand wind, seismic, or other loads.

• Patch load can also be used to redistribute loads on a tower to prevent structural failures.

• Examples of patch loads include adding steel plates or braces to a tower structure to inc...read more
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Q2. Epa calculation
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Q1. Work beyond shift time
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Q2. Codes on towers
Ans. 
Codes on towers refer to the specific design and construction standards that must be followed for safety and structural integrity.
• Codes on towers are regulations set by organizations like ANSI/TIA and ASCE that dictate the design, construction, and maintenance of towers.

• These codes cover aspects such as materials used, structural design, wind loading, and safety factors.

• For example, ANSI/TIA-222-G specifies the require...read more
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Q1. Electrical engineers
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Q2. Electrical digine eng
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Q3. Why joined your company
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I joined the company because of its innovative projects and collaborative work environment.
• Opportunity to work on cutting-edge projects

• Collaborative work environment

• Company's reputation in the industry

• Career growth opportunities
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Q1. Normally, asking my previous work
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Q1. Salary Discussion
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Tank area design, layout . safety distance between tanks and location and recommendations for pump station piping and layout

Q1. What type of Pressure Tests are conducted on valves?
Ans. 
Various pressure tests are conducted on valves including hydrostatic test, pneumatic test, and cryogenic test.
• Hydrostatic test is conducted by filling the valve with water and pressurizing it to a specified pressure to check for leaks.

• Pneumatic test involves using air or nitrogen to pressurize the valve and check for leaks or defects.

• Cryogenic test is performed at low temperatures to ensure the valve can withstand extr...read more
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Q2. What are some of the most important safety considerations you make when designing piping systems?
Ans. 
Safety considerations in designing piping systems are crucial for preventing accidents and ensuring the integrity of the system.
• Ensuring proper material selection to withstand the intended pressure and temperature conditions

• Implementing proper support and restraint systems to prevent excessive stress and vibration

• Incorporating adequate access points for maintenance and inspection

• Following relevant codes and standards s...read more
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Q1. About Piping construction process, drawings and Quality control.
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Q1. About salary and when can I join
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Q1. Written test regarding symbols
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Q1. Hr salary negotiation
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