When a vertical indication has reached the maximum signal height which can be displayed or viewed on the CRT of an ultrasonic instrument, the indication is said to have reached its:

Related MCQs

• An ultrasonic instrument control which allows moving an A scan display to the left or right without changing the distance between any echoes displayed is called:
• In a radiograph of a weld there is an indication appearing at the end of the weldbead. It appears as a dark rounded indication with fine small tails coming from around the rounded indication giving it some what of a star-shaped appearance. This would probably be:
• How many decibels of attenuation correspond to an ultrasonic signal loss of from 100% to 25% on full screen height?
• An ultrasonic insrument control which is used to adjust the sharpness of the CRT screen display is called:
• An instrument display in which the horizontal base line represents elapsed time and the vertical deflection represents signal amplitudes is called:
• According to ASME Section VIII, a linear indication is defined as an indication in which the length is equal to or greater than the width by a factor of:
• According to ASTM E709-95 and API, a linear indication is defined as an indication in which the length is equal to or greater than the width by a factor of:
• According to API, a non- relevant indication is defined as an indication which in the major dimension is equal to, or less than:
• A dark, jagged, linear indication appears on a radiograph of a casting. The area is a transition area between a thick and a thin section. This indication should be interpreted as:
• Which of the following circuits provide current to operate the ultrasonic instrument?