Regarding welder test

[bUDdhAgUru]

Dear Team,

Kindly provide your valuable views for the below query.

Regarding the interview question: "How does a QC engineer select pipe diameter, thickness, and material for conducting a Welder Qualification Test (WQT) in a new project, assuming no QC Manager is available and without verbal consultation with the client?"

QC answered as "he will clarify Min. dia. Max. thk. and the type of material as per project scope and P.O, but interviewer not satisfied to his answer "

Please provide correct suggestions and reference of documents.

Thanks & Regards

 

[sridhar cn]

Apart from the project scope, drawings, and PO he could have expanded further as,  

For diameter, I’d refer to QW-452.3 and select a test pipe that covers the minimum pipe size.

For thickness, I’d use QW-451for a maximum expected thickness in the project.

For material, I’d check the QW-420 for P no to ensure coverage for the actual project materials 

and sometimes Group No., if impact testing is required.

This shows code knowledge and logical project application beyond just PO checking.

C Sridhar.

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[mahesh chilukamari]

Hi,

Usually we will have project line list which indicates all pipe size, thickness and material involved in project, from there we can select WQT coupons required for project.

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