Tractebel Senior Piping Designer Interview Questions and Answers

Q1. What are isometric drawing and use
Ans. 
Isometric drawing is a 3D drawing technique used in piping to show a clear representation of piping layout.
• Isometric drawing is a type of 3D drawing that represents a 3D object in two dimensions.

• It is commonly used in piping to show the layout of pipes, fittings, and other components in a clear and detailed manner.

• Isometric drawings help in visualizing how components fit together and the overall layout of a piping syst...read more
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Q2. What is Types of drawing Isometric
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Isometric drawings are 3D drawings that show a three-dimensional object in a two-dimensional format.
• Isometric drawings use three axes (x, y, z) to represent the object in 3D space.

• All three axes are equally angled from each other, typically at 120 degrees.

• Isometric drawings are commonly used in engineering and construction to visualize objects and structures.

• Examples of isometric drawings include piping layouts, archit
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Q1. Heat exchanger pipping
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Q2. Rack piping
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Q1. Explain the suction piping of pump?
Ans. 
Suction piping of a pump is the piping system that brings fluid into the pump from the source.
• Suction piping is designed to ensure a smooth flow of fluid into the pump without any air pockets or cavitation.

• The piping should be sized appropriately to prevent excessive pressure drop and maintain efficient pump operation.

• Proper alignment and support of the piping is crucial to prevent stress on the pump and ensure longevi...read more
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Q2. Why we used eccentric reducer in suction line with flat side up/
Ans. 
Eccentric reducers are used in suction lines with flat side up to prevent air pockets and improve flow efficiency.
• Eccentric reducers help in preventing air pockets from forming in the suction line

• Having the flat side up ensures that any trapped air can easily escape

• Improves flow efficiency by reducing turbulence and pressure drop

• Commonly used in applications where smooth flow is critical, such as pump suction lines
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Q3. What is figure 8?
Ans. 
Figure 8 is a type of knot commonly used in piping design to secure two ropes or cables together.
• Figure 8 knot is also known as a stopper knot due to its ability to prevent ropes from slipping through holes or other openings.

• It is easy to tie and untie, making it a popular choice for various applications in piping design.

• The figure 8 knot is often used in rock climbing, sailing, and rescue operations for its reliabilit
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Q1. Piping of control station
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Control station piping is essential for regulating and monitoring the flow of fluids in a system.
• Control station piping connects various components such as valves, instruments, and equipment to control the flow of fluids.

• Proper design of control station piping ensures efficient operation and safety of the system.

• Consider factors like pressure, temperature, and material compatibility when designing control station pipin...read more
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Q2. Suction piping of pump
Ans. 
Suction piping of pump is crucial for efficient operation and performance.
• Suction piping should be designed to minimize friction losses and ensure proper flow to the pump.

• Proper sizing and layout of suction piping is essential to prevent cavitation and maintain pump efficiency.

• Consider factors such as pipe diameter, length, bends, and fittings when designing suction piping.

• Use smooth bore pipes, avoid sharp bends, and ...read more
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Q1. Unit plot plan development
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Q2. Leadership management
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Tank area design, layout . safety distance between tanks and location and recommendations for pump station piping and layout

Q1. Piping code equipment layout previous project related
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Q1. Equipment model , pump suction discharge
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Q1. Written test regarding symbols
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Q1. Hr salary negotiation
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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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