Static Equipment Interview Questions Updated File

: Can a floating head exchanger have different thicknesses for the stationary and floating tube sheets? Explain your reasoning. TEMA Classes : Differentiate between TEMA Class R, C, and B. Storage Tanks (API 650/620) Tank Sizing

SCC is the cracking of a material caused by the simultaneous presence of three factors: a susceptible material, a tensile stress (applied or residual), and a corrosive environment. Common examples include:

The roof floats directly on top of the liquid surface, eliminating the vapor space. This is mandatory for highly volatile and flammable liquids like crude oil, gasoline, and aviation fuel because it dramatically reduces evaporative emissions and fire risks.

Mention ultrasonic thickness (UT) gauging , visual inspections for corrosion under insulation (CUI), and hydrotesting after major repairs. Preparation Checklist Key Standard to Review Pressure Vessels ASME Section VIII (Div 1 & 2) Heat Exchangers TEMA Standards / API 660 Storage Tanks API 650 (New) / API 653 (Inspection) Piping ASME B31.3 (Process Piping) Materials ASME Section II & NACE MR0175 static equipment interview questions updated

What is the difference between Hydrostatic and Pneumatic Testing?

Q11: When would you recommend a Pneumatic Test over a Hydrostatic Test?

Which paragraph is used for the design of shell thickness? (UG-27 for internal pressure). Heat Exchangers (TEMA & ASME): : Can a floating head exchanger have different

: You may be asked why an expansion bellow is required in a shell and tube heat exchanger (typically to accommodate thermal expansion between the shell and tubes).

Thermal expansion is unrestricted because the tubes can freely expand and contract. It requires only one tubesheet, making it highly economical. The entire tube bundle can be removed for shell-side cleaning.

Employers want to know how you behave under pressure, handle disagreements, and lead teams. Storage Tanks (API 650/620) Tank Sizing SCC is

Experience immense circumferential hoop stress from the hydrostatic head of the stored liquid. Butt-welding ensures full penetration and uniform stress distribution, reducing the risk of catastrophic tearing or brittle fracture. 4. Piping & Valves (ASME B31.3) Q10: What is the difference between a pipe and a tube?

Used in fixed tube sheet exchangers when the differential thermal expansion between the shell and tubes exceeds the allowable stress of the materials.