In an A scan presentation, the amplitude of vertical indications on the screen represents the:

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:
• It is possible for a discontinuity smaller than the transducer to produce indications of fluctuating amplitude as the search unit is moved laterally if testing is being performed in the:
• In an A scan presentation, the horizontal base line represents the:
• AA screen pattern containing a large number of low-level indications (often reffered to as ‘hash’) could be caused by:
• An instrument display in which the horizontal base line represents elapsed time and the vertical deflection represents signal amplitudes is called:
• Strong signals which travel across the horizontal time base of an A scan presentation while the transducer is motionless on the test piece are probably:
• The causes of non relevant indications are:
• Surface breaking porosity will show what type of relevant indications when a welded aluminium plate is tested with the liquid penetrant method: