The typical causes for false indications are:

Related MCQs

• Fluorescent penetrant indications are more visible than colour contrast penetrant indications because:
• 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?
• Dark rounded indications with rather smooth edges appear on the radiograph of casting made in sand mould. These indications would be interpreted as:
• The causes of non relevant indications are:
• What are the three causes of non-relevant indications?
• Which of the following is least likely to be a source of false indications?
• Surface breaking porosity will show what type of relevant indications when a welded aluminium plate is tested with the liquid penetrant method:
• Which type of developer does not (!) provide a contrasting background against which to view penetrant indications?
• Indications which are caused by design or construction of the test piece are called?
• Indications which are caused by something other than a discontinuity are called: