API-577 試験問題を無料オンラインアクセス

What is the purpose of the IQI?

• A.Ascertaining how much radiation the source has penetrated the material
• B.Establishing the depth that the radiation source penetrates
• C.Marking the radiographs with a definite identifying characteristic
• D.Determining that the required sensitivity of the radiograph is achieved

At any time during the welding inspection, if defects are identified:

• A.They should be corrected before welding proceeds further.
• B.The inspector should determine whether the weld may be acceptable for the intended service.
• C.The inspector should seek engineering input on whether the defect is actually acceptable.
• D.The inspector should examine all welds produced by the same welder.

For what maximum outside diameter may a radiographic technique be used in which the radiation passes through two walls and the weld in both walls is viewed for acceptance?

• A.1.5 in. (38.0 mm)
• B.2.5 in. (63.5 mm)
• C.3.5 in. (90.0 mm)
• D.3 in.(76.2 mm)

What is the "area of interest" on a weld radiograph?

• A.The specific portion of a radiograph that needs to be evaluated
• B.The entire radiograph minus 2 in. (50.8 mm) from the edges
• C.Only the area of contrasting density
• D.The portion that is less than 3t from the center of the radiograph, where t is the thickness of the weld

What term is used to describe the mechanical working of metals using impact blows?

• A.Mechanical stress relieving
• B.Peening
• C.Needle gunning
• D.Hammering