Demagnetization, ASTM E709-95 recommends a coil of ampere-turns:

Related MCQs

• According to ASTM E709-95 demagnetization can be performed by:
• A group of indications, some sharp and some broad and fuzzy, were found on an area of a small forging. Demagnetization and re-inspection eliminated these indications. What was the probable cause?
• The formula, NI = 45000/(L/D), gives proper magnetising current for a coil, regardless of coil size as long as:
• In performing a water content test of a lipophilic emulsifier per ASTM D-95, what solvent is used?
• According to ASTM E709-95 when dry particles are used magnetic particle testing shall not be performed on the surface of parts whose temperature exceeds:
• According to ASTM E709-95 in using prod technique, prod spacing shall not exceed:
• According to ASTM E709-95, the UV intensity shall not be less than:
• According to ASTM E709-95 in using prod technique on a 50 mm thickness plate with a prod spacing of 101 mm (4 inches), current shall be selected in the following range:
• According to ASTM E709-95 direct current electromagnetic yokes should have a lifting force of at least:
• According to ASTM E709-95 the UV light shall be centred on (1 Å = 10-10m):