Among the following, the best type of current for the detection of fatigue cracks is:

Related MCQs

• Which type of penetrant process would be best suited to the detection of wide, shallow discontinuities?
• Which of the following will best define surface cracks?
• When a casting is being non destructively examined for critical service, and the possibility of cracks exists, which of the following techniques would be best?
• For a 7.6 cm (3 inches) diameter bar how much current is needed to magnetize the bar for the detection of longitudinal discontinuities:
• Which penetrant process is best suited to the detection of discontinuities in a test piece having threads and keyways?
• The penetrant process best suited for the detection of very fine discontinuities is:
• The most sensitive type of developer for the detection of fine discontinuities is:
• Highest sensitivity to fine surface cracks would be obtained by which of the following techniques?
• The type of current that is best suited to detect surface discontinuities is:
• Cracks, lack of penetration, lack of fusion which are surface breaking on a welded aluminium plate which has been liquid penetrant tested will show as: