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MFL level II set 2
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1.
Magnetic flux leakage is strongest when:
2.
Which factor affects magnetic permeability?
3.
MFL inspection systems detect:
5.
A discontinuity causes:
6.
Which component generates magnetic field in MFL tool?
8.
Tank floor MFL scanners detect:
9.
The sensitivity of MFL depends on:
10.
Magnetic flux tends to follow the path of:
13.
MFL is best suited for detecting:
14.
Lift-off variations may cause:
15.
Which inspection parameter must remain constant?
16.
Magnetic saturation occurs when:
17.
MFL sensors detect:
18.
Stronger magnets improve:
19.
Which defect orientation affects MFL signal?
20.
MFL testing does not require:
21.
Typical MFL inspection applications include:
22.
The purpose of reference standards is:
23.
Data analysis may involve:
24.
MFL inspection tools move along pipelines using:
25.
Magnetic flux leakage increases when:
26.
Which factor reduces MFL sensitivity?
27.
MFL inspection data may be displayed as:
28.
MFL inspection does not detect:
29.
Ferromagnetic materials include:
30.
The role of signal processing is to:
31.
Which factor affects scanning efficiency?
32.
Magnetic flux leakage signals originate from:
33.
The main limitation of MFL testing is detecting:
34.
MFL inspection provides information about:
35.
Magnetic field lines prefer to travel through:
36.
MFL inspection is typically performed:
37.
Data acquisition systems record:
38.
Strong leakage signals usually indicate:
39.
Inspection reports should include:
40.
MFL inspection personnel certification may follow:
41.
According to a typical MFL inspection procedure, the first step before inspection is:
42.
Prior to starting inspection, the operator must verify:
43.
The purpose of a reference calibration plate in MFL inspection is to:
44.
During calibration, artificial defects are used to:
45.
Typical artificial defects used in calibration blocks include:
46.
Before inspection begins, the equipment must be checked for:
47.
The inspection head should maintain:
48.
Excessive lift-off during inspection may result in:
49.
During scanning, the recommended scanning speed should:
50.
The purpose of maintaining constant scanning speed is to:
51.
In tank floor inspection, scanning patterns are typically:
52.
The inspection area should be free from:
53.
Surface coatings may affect MFL inspection by:
54.
When abnormal signals appear, the operator should:
55.
The purpose of signal filtering in the inspection system is to:
56.
When performing MFL inspection on pipelines, the inspection tool is usually:
57.
Pipeline MFL inspection tools travel through pipelines using:
58.
Data collected during inspection is typically stored in:
59.
The Level II technician is responsible for:
60.
A reference standard should be verified:
61.
Wire Rope Inspection An MFL wire rope tester shows a large sudden peak in the signal trace. This usually indicates:
62.
Wire Rope Inspection A gradual increase in signal amplitude along the rope length may indicate:
63.
Wire Rope Inspection Multiple sharp peaks appearing within a short section of rope most likely indicate:
64.
Tank Floor Inspection A signal occurs only when the inspection head passes over a weld area. This is most likely caused by:
65.
Tank Floor Inspection A sudden spike followed by immediate return to baseline is recorded.This indicates:
66.
Pipeline Pig Inspection If the MFL signal amplitude increases gradually as the pig moves along the pipe, it suggests:
67.
Pipeline Pig Inspection A strong signal appears near a pipeline girth weld. This may be caused by:
68.
Tube Inspection If signal amplitude decreases while defect width increases, the defect is likely:
69.
Wire Rope Inspection A signal appears only when the rope is under load. This suggests:
70.
General Interpretation A strong signal combined with large signal width usually indicates: