API API-577リアル試験問題解答は無料 [Q44-Q68]

API API-577リアル試験問題解答は無料

試験問題集でAPI-577練習無料最新のAPI練習テスト

API API-577 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Terms, Definitions, and Acronyms: This section of the exam measures the skills of API-specialized inspectors and covers essential terminology, definitions, and acronyms used in welding and inspection. Candidates should be familiar with industry-specific language and abbreviations. The exam assesses the ability to interpret and use welding-related terms in various contexts accurately.
トピック 2	Welding Processes: This section expects welding engineers to demonstrate comprehensive knowledge of various welding processes. It covers different welding techniques, equipment, and applications. Candidates should understand the principles behind each welding process and its suitability for different materials and situations.
トピック 3	Metallurgy: Metallurgists are expected to showcase their expertise in welding metallurgy in this section. It covers the effects of welding on material properties, heat-affected zones, and microstructure changes.
トピック 4	Welding Inspection: This section focuses on the skills of API-specialized inspectors in performing welding inspections. It covers inspection techniques, tools, and documentation requirements.
トピック 5	Nondestructive Examination: Metallurgists are expected to demonstrate proficiency in nondestructive examination (NDE) methods in this section. It covers various NDE techniques, their principles, and applications in welding inspection.
トピック 6	Welding Materials: This section focuses on metallurgists' understanding of welding materials. It covers different types of metals, alloys, and consumables used in welding. Candidates should be familiar with material properties, selection criteria, and compatibility issues.
トピック 7	Refinery and Petrochemical Plant Welding Issues: This section measures the skills of welding engineers in addressing specific welding issues in refinery and petrochemical plant environments. It covers unique challenges, materials, and safety considerations in these industries.
トピック 8	Welding Procedure: API-specialized inspectors are expected to showcase their knowledge of welding procedures in this section. It covers the development, qualification, and implementation of welding procedure specifications (WPS).

 

質問 # 44
What is a sensitized microstructure in austenitic stainless steels?

• A. An area next to the heat-affected zone that has suffered some softening and loss of strength.
• B. The microstructure of the weld that has been melted and will therefore have properties more like a casting than the base metal.
• C. An area near the heat-affected zone affected by welding that may experience intergranular corrosion.
• D. The high residual stress zone adjacent to the weld fusion line that will have higher hardness than the weld or base material.

正解：C

質問 # 45
Exposed film that allows 1% of the incident light to pass through has a film density of:

• A. 3.0
• B. 1.0
• C. 2.0
• D. 4.0

正解：A

質問 # 46
Rules for qualifying welding operators using radiography on a production weld require what minimum weld length to be examined?

• A. 12 in. (300 mm)
• B. 6 in. (150 mm)
• C. 24 in.(600 mm)
• D. 36 in. (900 mm)

正解：A

質問 # 47
What is the purpose of a PQR?

• A. To establish the properties of the weldment.
• B. To provide direction to the welder making production welds.
• C. To document that a welder has correctly followed a WPS.
• D. To establish a welder's capability to make a quality weld.

正解：A

質問 # 48
As a result of welding, metals with a high coefficient of thermal expansion are:

• A. Less susceptible to brittle fracture.
• B. Less susceptible to cracking during welding.
• C. More susceptible to brittle fracture.
• D. More susceptible to distortion during welding.

正解：D

質問 # 49
Which of the following is not usually an essential variable on a WPS form?

• A. Base metal
• B. Groove design
• C. Welding technique
• D. Welding position

正解：C

質問 # 50
Which of the following statements concerning electrode storage in ovens is true?

• A. Electrodes should never be stored in an oven that is used for food storage.
• B. Low-hydrogen electrodes may be stored in ovens with cellulose-based electrodes, but must be in their original, unopened containers.
• C. Electrode ovens should be heated by any means, but must have automatic heat controls and visible temperature indicators.
• D. Low-hydrogen electrodes should never be stored with stainless-steel electrodes.

正解：D

質問 # 51
If a test specimen from a welded coupon should fail during PQR mechanical tests:

• A. The WPS fails.
• B. Three out of four of the required test specimens must pass.
• C. Two additional test specimens from the coupon must be tested and pass.
• D. The test coupon fails and a new coupon is required.

正解：D

質問 # 52
If a nonessential variable is changed on a WPS, which of the following actions must occur?

• A. The welding procedure will need to be requalified by performing mechanical testing.
• B. It may be changed on the WPS without requalifying the welding procedure.
• C. Impact testing must be performed at the discretion of the welding engineer.
• D. The welding inspector can simply make the change on the WPS and initial as proof of acceptance.

正解：B

質問 # 53
Which of the following has the lowest range of welding currents and electrode diameters associated with the GMAW process?

• A. Globular transfer
• B. Pulsed droplet transfer
• C. Short circuiting transfer
• D. Spray transfer

正解：C

質問 # 54
In alloy steel, a high hardness measurement could indicate:

• A. The presence of tempered martensite.
• B. The presence of untempered martensite.
• C. A correlation to a low tensile strength.
• D. The Brinell test device was struck too hard with the hammer.

正解：B

質問 # 55
Which of the following is a practical solution to eliminate or reduce porosity when welding carbon steel?

• A. Proper shielding
• B. Reduce travel speed
• C. Arc length control
• D. Lower heat input

正解：A

質問 # 56
The direction of magnetic flux can be confirmed by the use of a:

• A. Flux line sensitizer.
• B. Magnetic-field-sensitive crayon.
• C. Calibration gauge.
• D. Pie gauge.

正解：D

質問 # 57
If an individual changes an essential variable in the WPS, the individual must:

• A. Re-qualify the PQR.
• B. Re-qualify the WPS.
• C. Record the change on the existing WPS.
• D. List the change as a supplement to the WPS.

正解：B

質問 # 58
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. 3 in.(76.2 mm)
• B. 1.5 in. (38.0 mm)
• C. 2.5 in. (63.5 mm)
• D. 3.5 in. (90.0 mm)

正解：A

質問 # 59
What is the minimum liquid level that should be maintained above the area that is to be hot tapped on a storage tank or vessel?

• A. 2 ft. (600 mm)
• B. 4 ft. (1200 mm)
• C. 3 ft. (900 mm)
• D. 1 ft. (300 mm)

正解：A

質問 # 60
API Recommended Practice 2201 primarily covers the:

• A. WPS/PQR aspects of in-service welding.
• B. Technical aspects of hot tapping.
• C. Safety aspects of in-service welding.
• D. Weldability aspects of in-service welding.

正解：C

質問 # 61
Hardenability of a steel can be an indirect indicator of:

• A. Cooling rate
• B. Toughness
• C. Weldability
• D. Strength

正解：C

質問 # 62
What is the purpose of the IQI?

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

正解：B

質問 # 63
Mechanical tests are required to qualify a welding procedure to document that the properties of the weldment meet which of the following?

• A. The same criteria required for welder qualification.
• B. The requirements as established in ASME Section XI.
• C. The minimum established acceptance criteria.
• D. The expected load for which the weld will be subject.

正解：C

質問 # 64
Heating a round bar to an elevated temperature and then quenching one end is a test method to determine:

• A. Temper embrittlement.
• B. Thermal conductivity.
• C. Hardenability.
• D. Heat treatability.

正解：C

質問 # 65
Refer to the following diagram:

Item#1 represents:

• A. root weld size.
• B. root opening.
• C. groove weld size.
• D. root face.

正解：B

質問 # 66
When welding nickel alloys, it is important that:

• A. A wide face and thinner bevel be used.
• B. The cooling rate be controlled in order to prevent rapid cooling.
• C. Preheating is always performed to prevent hot cracking.
• D. The bevel angle be wide enough to allow oscillation of welding torch.

正解：B

質問 # 67
What is the liquid flow rate range that should be maintained in piping to be hot tapped?

• A. 4.1 - 5.5 ft./sec (1.25 - 1.68 m/sec)
• B. 2.3 - 3.3 ft./sec (0.70 - 1.00 m/sec)
• C. 0.05 - 2.7 ft./sec (0.015 - 0.82 m/sec)
• D. 1.3 - 4.0 ft./sec (0.40 - 1.20 m/sec)

正解：D

質問 # 68
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API-577試験問題、リアルAPI-577練習問題集：https://drive.google.com/open?id=1_ItqEWllySZfJYJubIU54esDaXQTnodp