When the orientation of likely discontinuities is unknown, what is the minimum number of magnetising operations required to perform an adequate test?

Related MCQs

• For direct contact magnetising methods, current should be flowing in what direction relative to expected discontinuities?
• For direct contact magnetising methods, current should be flowing in what direction relative to expected discontinuities?
• For adequate test results, the black light used in fluorescent penetrant examination should provide what minimum black light intensity at the test surface?
• The reverse magnetising force necessary to remove a residual magnetic field from a test piece after it has been magnetically saturated is called:
• A magnetic particle testing technique in which the test piece is magnetised and magnetic particles applied after the magnetising force has been removed is called the:
• Magnetic particles testing is most likely to find subsurface discontinuities in:
• Magnetic particle testing is most likely to find subsurface discontinuities in:
• Which penetrant process is best suited to the detection of discontinuities in a test piece having threads and keyways?
• When variations are noticed in the front surface reflection, the test piece should be inspected for possible near surface discontinuities by:
• The ability of a material to remain magnetic after the magnetising force is removed is called: