When using prods, arc burns may be caused by which of the following?

Related MCQs

• According to ASTM E709-95 in using prods having a spacing of 19 mm (3/4 inches) and above, the magnetizing current shall be:
• When a magnetic field is induced in a part with prods spaced 150mm apart, the field is:
• Prods are being used to magnetize a weld area. When dry powder is dusted on the surface, it is observed that there is no mobility of the particles. What is the most probable reason for this observation?
• According to ASTM E709-95 with prod technique, the prods shall be tipped if the open circuit voltage is over:
• If a mercury vapour arc black light is inadvertently turned off, how soon may it be restarted?
• Deterioration of penetrant material performance may be caused by which of the following?
• Spurious indications may be caused by which of the following?
• A weld discontinuity which consists of unmelted joint surfaces at the root, and which may be caused by poor fit- up, is called:
• A weld discontinuity which consists of unmelted joint surfaces at the root, and which may be caused by poor fit-up, is called:
• Loss of the test piece back wall echo during scanning may be caused by: