API-577練習API高合格率回答あなたを試験は高確率で合格させます！[2025]
最高の方法からパスICP ProgramsのAPI-577試験合格させます
質問 # 17
If a test specimen from a welded coupon should fail during PQR mechanical tests:
- A. The test coupon fails and a new coupon is required.
- B. The WPS fails.
- C. Two additional test specimens from the coupon must be tested and pass.
- D. Three out of four of the required test specimens must pass.
正解：A
質問 # 18
General awareness of metallurgy is important to the welding inspector because:
- A. The crystalline structure of base metals affects the resulting structure of the weld.
- B. A thorough knowledge of weld metal structures is necessary to understand weldability.
- C. Physical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).
- D. Welding processes can affect both mechanical and corrosion properties of a weldment.
正解：D
質問 # 19
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. 3 ft. (900 mm)
- B. 4 ft. (1200 mm)
- C. 1 ft. (300 mm)
- D. 2 ft. (600 mm)
正解：D
質問 # 20
Base metals are assigned P-numbers by the ASME Code, Section IX to reduce the number of:
- A. Required procedure and performance qualifications.
- B. Required welding procedure qualifications.
- C. Required welding procedure specifications.
- D. Required mechanical tests.
正解：A
質問 # 21
When performing a carbon steel to carbon steel hot tap where the CE of one of the metals is greater than
0.42%, which of the following electrodes should be used?
- A. E7048
- B. E7018-A1
- C. E7048-H4
- D. E7018
正解：D
質問 # 22
For carbon steels, the HAZ includes those regions heated to a temperature greater than:
- A. 1250°F (677°C)
- B. 1050°F (556°C)
- C. 1150°F (621°C)
- D. 1350°F (730°C)
正解：C
質問 # 23
What is(are) the most appropriate action(s) to prepare an in-service carbon steel piping system that has been in caustic service for welding?
- A. Neutralize and clean the surface within 6 in. (150 mm) of weld bevels
- B. Verify with pH paper that any surface liquid is "basic"
- C. Steam out the piping system and dry
- D. Grind the surfaces near the bevel to remove contaminants
正解：A
質問 # 24
Which welding process has been associated most with lack of fusion with shop-fabricated piping?
- A. FCAW-SW
- B. GMAW-SF
- C. FCAW
- D. GMAW-S
正解：D
質問 # 25
What is the Brinell hardness limit value for 1-1/4 Cr -1/2 Mo steel in refining service?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 26
Which welding process produces a fast-freezing weld pool and is generally suited for joining thin sections or root passes?
- A. FCAW
- B. GMAW-S
- C. GTAW
- D. GMAW
正解：C
質問 # 27
The distance the weld metal extends from the weld face into a joint, exclusive of weld reinforcement is called:
- A. Joint penetration
- B. Groove angle
- C. Complete penetration
- D. The weld body
正解：A
質問 # 28
The WPS gives the welder specific guidelines to:
- A. Confirm the project heat input is followed during welding.
- B. Successfully complete production welds.
- C. Make imperfection/defect-free welds.
- D. Set the machine amperage, voltage, and travel speed.
正解：D
質問 # 29
For SMAW welding, the last number of the electrode identification identifies:
- A. Welding position.
- B. Chemical composition.
- C. Electrode operating characteristics.
- D. Coating operating characteristics.
正解：D
質問 # 30
Eddy current can be used to measure the:
- A. Thickness of surface coatings or cladding thickness.
- B. Holidays in coatings or claddings.
- C. Extent of bonding of coatings or claddings.
- D. Thickness of parent metal below alloy metal claddings.
正解：A
質問 # 31
Crater cracks typically occur:
- A. In weld metal at the point where the arc initiates.
- B. In the HAZ at the point where the arc terminates.
- C. In the HAZ at the point where the arc initiates.
- D. In weld metal at the point where the arc terminates.
正解：D
質問 # 32
ACFM is an NDE technique ideal for inspecting:
- A. Fillet welds, J-welds, and seal welds.
- B. Nozzles, ring-grooves, and grind-out areas.
- C. Lap joint welds and uphill welding.
- D. Butt welds (single and double bevel) and plug welds.
正解：B
質問 # 33
Prior to any welding, inspectors should review the:
- A. WPS to verify that the welder is qualified to perform the welding, given its position and process.
- B. WPQ to verify that the specification in use is correct.
- C. PQR to verify that the welder is qualified to perform the welding, given its position and process.
- D. WPQ to verify that the welder is qualified to perform the welding, given its position and process.
正解：A
質問 # 34
In hardness testing of carbon steel weldment specimens, there is an approximate relationship between hardness and:
- A. Tensile strength
- B. Toughness
- C. Ductility
- D. Yield strength
正解：A
質問 # 35
Which of the following is a practical solution that could prevent or reduce lack of fusion in carbon steel during the weld process?
- A. Provide proper heat input
- B. Reduce travel speed
- C. Use proper joint design
- D. Avoid excessive weaving
正解：A
質問 # 36
Remote examination of welds may use aids such as telescopes, borescopes, fiberscopes, cameras, or other suitable instruments provided they have:
- A. Sensitivity to find possible defects that a direct visual exam would produce.
- B. A resolution at least equivalent to that which is attained by direct visual examination.
- C. Good perception and the inspection would be approximately equal to a direct visual exam.
- D. A greater acuity than the eye and the inspection would be better than a direct visual.
正解：B
質問 # 37
Which of the following is the test that can measure most aspects of weldability?
- A. Impact testing
- B. Bend testing
- C. Weld tension tests
- D. There is no single test
正解：D
質問 # 38
The deflection of an arc from its normal path that is a result of magnetic forces is referred to as:
- A. Arc blow.
- B. Arc deflection.
- C. Arc strike.
- D. Arc drift.
正解：A
質問 # 39
Which of the following is a practical solution to eliminate or reduce porosity when welding carbon steel?
- A. Arc length control
- B. Proper shielding
- C. Lower heat input
- D. Reduce travel speed
正解：B
質問 # 40
For design purposes, the maximum usefulness of a weldment under test is based upon the:
- A. Yield strength.
- B. Toughness.
- C. Ultimate tensile strength.
- D. Hardness.
正解：C
質問 # 41
Items to be included in the WPS for GMAW process are:
- A. Joint design and test coupon thickness.
- B. Type of welding process and test coupon thickness.
- C. Electrode-flux class and electrical characteristics.
- D. Base metal P-number and deposited metal thickness.
正解：B
質問 # 42
......
API API-577事前に試験練習テストFast2test: ：https://jp.fast2test.com/API-577-premium-file.html