I. Seam Construction for Welded Pipes

How should all welded pipes be supplied in terms of seam construction?

A) Only single seam construction
B) Only double seam construction
C) Either single or double seam construction, depending on the size
D) Only spiral seam construction

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Explanation: All welded pipes shall be supplied in single seam construction. However, for sizes ≥NPS 36, a double seam construction is acceptable.

II. Acceptance of Spiral Welded Pipe

Is spiral welded pipe accepted in any material according to the provided information?

A) Yes, in all materials
B) No, in any material
C) Only in Alloy Steel
D) Only in Stainless Steel

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Explanation: Spiral welded pipe shall not be accepted in any material.

III. Material Certificates for Pipes

According to the information, what should material certificates for pipes comply with?

A) ASTM standards
B) ASME standards
C) BS EN10204, 3.1
D) ISO standards

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Explanation: Material certificates for pipes shall comply with BS EN10204, 3.1.

IV. Electric Resistance Welding (ERW) Pipes

For which system sizes is Electric Resistance welding (ERW) Pipes of ASTM A53 material considered?

A) Sizes 18″ to 24″
B) Sizes 2″ to 12″
C) Sizes NPS 36 and above
D) Sizes up to 2″

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Explanation: Electric Resistance welding (ERW) Pipes of ASTM A53 material is considered for sizes 2″ to 12″ pipes.

V. Electric Fusion Welded (EFW) Pipes

For which sizes and materials are Electric Fusion welded (EFW) Pipes considered according to the provided table?

A) Sizes 2″ to 12″ for LTCS Material
B) Sizes 18″ and 24″ for Stainless Steel
C) Sizes 18″ and 24″ for all materials
D) Sizes 18″ and 24″ for Carbon Steel

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Explanation: Electric Fusion welded (EFW) Pipes are considered for sizes 18″ and 24″ for the materials listed in the provided table.

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