API-570 무료 덤프문제 온라인 액세스

What is the most common method used to manufacture tubing?

• A.Seamlessly drawn
• B.Wire drawn
• C.Riveted
• D.Forged

The valve used to automatically prevent back flow is valve.

• A.globe
• B.slide
• C.ball check
• D.gate

A leak test is an alternative to inspection of buried piping.
What is the minimum liquid pressure to adequately conduct this test?

• A.Actual MAWP
• B.10% greater than MAWP
• C.1 1/4 times the MAWP
• D.1 1/2 times the MAWP

Welding procedures qualified by may be used, subject to the specific approval of the inspector

• A.the employer
• B.the use of API 1104 qualified procedures
• C.others
• D.the use of AWS pre qualified, D1.1 type procedures

The weld ripples of reinforcement of butt-welded joints shall be before radiography.

• A.ground flush, with grinding direction parallel to the weld
• B.ground flush, with grinding direction perpendicular to the weld
• C.removed
• D.removed if irregularities mask discontinuities