Gas discontinuities are reduced to flat discs or other shapes parallel to the surface by:

Related MCQs

• When variations are noticed in the front surface reflection, the test piece should be inspected for possible near surface discontinuities by:
• An inspection for surface and subsurface discontinuities in ferromagnetic welds would best be accomplished by which of the following techniques?
• The type of current that is best suited to detect surface discontinuities is:
• In immersion testing, verification that the search unit is normal to a flat entry surface is indicated by:
• When comparing discontinuity echoes to equivalent flat bottom hole echoes in materials with similar impedance, surface finish and attenuation:
• The most sensitive type of developer for the detection of fine discontinuities is:
• Which penetrant process is best suited to detect shallow discontinuities?
• Which penetrant process is best suited to the detection of discontinuities in a test piece having threads and keyways?
• Which penetrant process is the most sensitive to detect fine discontinuities?
• Which type of penetrant process would be best suited to the detection of wide, shallow discontinuities?