1.
Weld repairs are generally required for
2.
. Which welding process is most frequently used for manual weld repairs?
3.
Why are pre- and post-weld heat treatments sometimes required in repairs of C-Mn steels?
4.
Before deciding on a repair, the fabricator must determine:
5.
Which NDT methods are typically required to ensure defect removal before repair?
6.
What is the main risk of shortcuts in unplanned repairs?
7.
In weld repairs, financial consideration is important to:
8.
During assessment, which factor determines the welding process to be used?
9.
Who should approve welding procedures for repairs?
10.
What is the recommended depth-to-width ratio for thermal excavation of defects?
11.
Why is cleaning the repair area essential before welding?
12.
What is the typical amount of material ground back to bright metal before repair?
13.
Which factor can affect the metallurgical structure during arc/air gouging?
14.
. NDT after excavation is essential to:
15.
Production weld repairs are identified primarily by:
16.
Surface-breaking defects like cracking are often detected using:
17.
. Depth of a sub-surface defect is best measured using:
18.
Why might a thermal method of excavation require procedure qualification?
19.
When is preheating typically applied during weld repair?
20.
What is the next step after marking the excavation site?
21.
Why is using approved welders crucial for repairs?
22.
Dressing of the weld after repair ensures:
23.
NDT after repair ensures:
24.
. Post-repair heat treatment is required when:
25.
In-service repairs are generally more complex than production repairs because:
26.
A permit to work may be required for in-service repairs because:
27.
Why is chemical analysis of base metal important before repair?
28.
Maximum practical yield strength of conventional steel weld metal for repair is:
29.
Preheat can be reduced using:
30.
Softening of HAZ is likely in:
31.
Hard HAZs are particularly vulnerable to:
32.
Local PWHT may be required when:
33.
Fatigue cracks in repaired welds can be minimized by:
34.
The repair weld profile should be blended to resist:
35.
Onerous service repairs require which NDT methods?
36.
Proper supervision of welders in repair ensures:
37.
As-welded repairs are acceptable when:
38.
Which steels may require PWHT even in as-welded repair?
39.
Is grinding and blending sometimes preferable to welding repair?
40.
Brittle materials like thick-section cast irons may fail during repair because of:
41.
Previous repairs may differ from current ones due to:
42.
What determines if PWHT is necessary?
43.
Can all HAZ softening be avoided?
44.
Which filler metal is needed to resist corrosion in repaired welds?
45.
Stress corrosion resistance may require:
46.
Are all repairs straightforward?
47.
When choosing a repair method for cracks in cast iron, factors include:
48.
. What should be determined first in in-service repair?
49.
Ultra-low hydrogen electrodes are preferred because they:
50.
Which repair is considered safest in high fatigue areas?
51.
Production weld repairs are usually identified by:
52.
Discontinuities in welds are considered defects when:
53.
Assessment of surface-breaking defects may include:
54.
The depth of a subsurface defect is best assessed using:
55.
Thermal excavation methods like arc/air gouging require:
56.
. Preheat is applied in repairs to:
57.
Depth-to-width ratio for defect excavation should ideally be:
58.
. Cleaning of the repair area is necessary to:
59.
Grinding back to bright metal typically removes:
60.
Approval of the repair welding procedure ensures:
61.
Post-repair NDT confirms:
62.
In-service repairs are more complicated due to:
63.
A permit to work is essential for in-service repairs because:
64.
Chemical analysis of base metal before repair helps to:
65.
Yield strength of the repair weld metal affects:
66.
. Preheat can be minimized by using:
67.
Softening of the HAZ occurs primarily in:
68.
Hard HAZs are vulnerable to:
69.
Local PWHT is sometimes applied because:
70.
Grinding and blending of weld surfaces in fatigue areas ensures:
71.
Stress corrosion resistance may require:
72.
. Onerous service repairs often require:
73.
Supervision of welders during repair ensures:
74.
As-welded repairs are acceptable when:
75.
Alloy steels and thick sections may require:
76.
Grinding shallow defects may be preferred to welding when:
77.
Thick cast irons may fail in repair due to:
78.
Previous repairs may differ from new ones due to:
79.
Determining necessity of PWHT depends on:
80.
. Can all HAZ softening be avoided?
81.
Filler metal for corrosion resistance should be:
82.
Fatigue crack prevention requires:
83.
. Repairs are not simple because:
84.
Cracks in cast iron can be repaired by:
85.
First step in in-service repair is:
86.
Ultra-low hydrogen electrodes are preferred because they:
87.
Fillet welds in high fatigue areas must:
88.
Defect removal confirmation is done by:
89.
. High preheat levels can:
90.
Repair welds in high-strength steels need careful attention because:
91.
In-service repairs may require:
92.
Fatigue resistance of a repair weld is influenced by:
93.
Residual stress control in repairs is managed by
94.
NDT after PWHT ensures:
95.
Chemical analysis prevents:
96.
Hard HAZ in sulfur-bearing steels may require
97.
Complex in-service repairs may be complicated by:
98.
Structural integrity after repair is assessed by:
99.
Which is safest for repairing shallow defects?
100.
. In all repair welds, welders should be:
101.
The first step in a welding repair procedure is:
102.
Excavation of defects is required to:
103.
Repair welding procedure approval ensures:
104.
Use of unqualified welders in repairs may lead to:
105.
. NDT after excavation confirms:
106.
Protective treatments after repair may include:
107.
In-service weld repairs often require:
108.
Welding procedure for in-service repairs may differ because of
109.
Analysis of defect types helps to determine:
110.
Cleaning of the repair area prevents:
111.
Depth-to-width ratio in excavation affects:
112.
Excavate deep defects using:
113.
NDT methods commonly used for defect detection include:
114.
Preheat before repair welding is necessary to:
115.
Post-weld heat treatment (PWHT) is applied to:
116.
The extremity of a defect is best determined by:
117.
Welding repair method selection depends on:
118.
Residual stress in repair welds is higher because:
119.
Softening of the HAZ in high-strength steels can be minimized by:
120.
Hard HAZ is particularly critical in:
121.
Fatigue-critical repairs require:
122.
Chemical composition analysis before repair is important to:
123.
Shallow defects in low-weldability steels are often repaired by:
124.
Weld repairs without PWHT are acceptable when:
125.
Local PWHT is preferred when:
126.
. In-service repair welding often needs a permit due to:
127.
Preheat levels can be reduced by using:
128.
Welding defects caused by welder skill can be prevented by
129.
Fatigue cracks can propagate if:
130.
Corrosion resistance in repair welds is ensured by:
131.
Stress corrosion resistance may require:
132.
Hard HAZ in high-sulfur steels may cause:
133.
Depth of defect excavation should be:
134.
Repair of cracks in cast iron may involve:
135.
The welding procedure for repair should consider:
136.
Grinding before welding is important to
137.
NDT after repair ensures:
138.
Repair welds in high-strength steels require attention due to:
139.
. As-welded repairs are common when:
140.
In-service repair complexity increases due to:
141.
Chemical analysis before repair prevents:
142.
Fatigue-critical areas require:
143.
PWHT may be avoided when:
144.
Grinding shallow defects is preferred when:
145.
High preheat can damage:
146.
Welding without proper supervision may lead to:
147.
Residual stress in repair welds can be reduced by:
148.
. In-service repair welds should consider:
149.
Structural integrity after repair is verified by
150.
The first step in a welding repair is:
151.
In production repairs, a defect is considered significant when
152.
Which NDT method is best for detecting subsurface defects in repairs?
153.
Thermal excavation methods like arc/air gouging require:
154.
Depth-to-width ratio in excavation should ideally be:
155.
Grinding the repair area to bright metal prevents:
156.
Confirmation of complete defect removal requires:
157.
Before rewelding, the welding procedure should be:
158.
Post-repair NDT ensures:
160.
In-service weld repairs are more complex because
161.
Permit to work may be required for in-service repairs due to:
162.
Material analysis before repair is important to:
163.
High-yield-strength repairs may cause:
164.
Ultra-low hydrogen consumables reduce the need for:
165.
Hard HAZs in repaired high-strength steels may require:
166.
Fatigue resistance in repair welds depends on:
167.
Stress corrosion in repairs can be minimized by:
168.
Repairs of one type may differ from previous ones due to:
169.
Shallow defects in welds may be repaired by
170.
. Brittle materials require caution in repair because:
171.
. Chemical analysis of base metal should include:
172.
In-service repairs often require consideration of:
173.
For onerous service, final repair inspection may require:
174.
Procedural tests in repair welding are critical to
176.
As-welded repairs are acceptable when:
177.
Grinding depth for cleaned excavation is typically:
178.
Excavation marking ensures:
179.
Use of approved welders ensures:
180.
Repair procedures should be tailored to:
181.
In-service repairs may be restricted by:
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