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API API-577 認定試験の出題範囲：
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質問 # 44
In general, austenitic stainless steels are considered to have:
- A. Significant issues with lack of sidewall fusion.
- B. A tendency toward lack of root pass fusion.
- C. Good weldability.
- D. Fewer problems with distortion.
正解：C
質問 # 45
Which of the following is an important aspect of a qualified WPS?
- A. Maintaining project schedule
- B. Welder qualification
- C. Welding program effectiveness
- D. Fabrication quality control
正解：D
質問 # 46
The distance the weld metal extends from the weld face into a joint, exclusive of weld reinforcement is called:
- A. The weld body
- B. Groove angle
- C. Joint penetration
- D. Complete penetration
正解：C
質問 # 47
Codes/standards sometimes specify impact testing of weldments at minimum design metal temperatures to:
- A. Assure that the welded material has sufficient tensile strength to avoid failure at design loads.
- B. Assure that the welded material has sufficient yield strength to avoid brittle fracture.
- C. Assure that the welded material has sufficient toughness to resist brittle fracture.
- D. Assure that the welded material has sufficient ductility to assist brittle fracture.
正解：C
質問 # 48
At least how far on each side of the weld should preheat be maintained?
- A. 3 in. (7.6 cm)
- B. 4 in. (10.2 cm)
- C. 6 in. (15.2 cm)
- D. 2 in. (5.1 cm)
正解：C
質問 # 49
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. Electrode ovens should be heated by any means, but must have automatic heat controls and visible temperature indicators.
- C. Low-hydrogen electrodes may be stored in ovens with cellulose-based electrodes, but must be in their original, unopened containers.
- D. Low-hydrogen electrodes should never be stored with stainless-steel electrodes.
正解：D
質問 # 50
What does an AWS classification number identify?
- A. Electrodes and welding rods
- B. Base metal and group number
- C. Chemical composition of the deposited weld metal
- D. Electrode diameter and strength
正解：A
質問 # 51
The change in shape (deformation) that a test specimen experiences when it is stressed or loaded is called:
- A. Yield.
- B. Strain.
- C. Plasticity.
- D. Stress.
正解：B
質問 # 52
Which of the following is the test that can measure most aspects of weldability?
- A. Bend testing
- B. There is no single test
- C. Weld tension tests
- D. Impact testing
正解：B
質問 # 53
In alloy steel, a high hardness measurement could indicate:
- A. The Brinell test device was struck too hard with the hammer.
- B. The presence of tempered martensite.
- C. The presence of untempered martensite.
- D. A correlation to a low tensile strength.
正解：C
質問 # 54
Hardenability of a steel can be an indirect indicator of:
- A. Strength
- B. Weldability
- C. Toughness
- D. Cooling rate
正解：B
質問 # 55
The simplest weldability tests are those that evaluate:
- A. Porosity and slag inclusions of the weld.
- B. Cracking and corrosion resistance of the weld.
- C. Ductility and hardness of the weld.
- D. Strength and ductility of the weld.
正解：D
質問 # 56
Filler metals are grouped according to their A-numbers to:
- A. Minimize the number of welding procedure qualifications.
- B. Define the welding characteristics.
- C. Designate similar chemical compositions.
- D. Minimize the number of performance qualifications.
正解：C
質問 # 57
What term is used to describe the mechanical working of metals using impact blows?
- A. Peening
- B. Needle gunning
- C. Hammering
- D. Mechanical stress relieving
正解：A
質問 # 58
A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:
- A. Welding position.
- B. Coating characteristics.
- C. Strength of the filler metal.
- D. Chemical composition.
正解：A
質問 # 59
If a nonessential variable is changed on a WPS, which of the following actions must occur?
- A. The welding inspector can simply make the change on the WPS and initial as proof of acceptance.
- B. The welding procedure will need to be requalified by performing mechanical testing.
- C. Impact testing must be performed at the discretion of the welding engineer.
- D. It may be changed on the WPS without requalifying the welding procedure.
正解：D
質問 # 60
A-number groupings are based upon the:
- A. Chemical composition of the deposited weld metal.
- B. Type and strength of base metal.
- C. Comparable base metal ultimate strength values.
- D. Weldability characteristics of the metal.
正解：A
質問 # 61
The direction of magnetic flux can be confirmed by the use of a:
- A. Calibration gauge.
- B. Magnetic-field-sensitive crayon.
- C. Flux line sensitizer.
- D. Pie gauge.
正解：D
質問 # 62
P-numbers are based on which of the following?
- A. Comparable base metal characteristics
- B. Electrode characteristics
- C. Chemical composition of the base metal
- D. Weldability characteristics of base metal
正解：D
質問 # 63
Heating a round bar to an elevated temperature and then quenching one end is a test method to determine:
- A. Heat treatability.
- B. Hardenability.
- C. Thermal conductivity.
- D. Temper embrittlement.
正解：B
質問 # 64
What is the major cause of lack of fusion in all welding processes involving carbon steel?
- A. Improper heat input and improper welding technique
- B. Not using a low hydrogen electrode or improper shielding
- C. Inadequate preheat
- D. Improper welding speed
正解：A
質問 # 65
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