Tuesday, 31 October 2017

Q:-When considering the advantages of site RT over UT which of the following applies?

1. A permanent record produced, good for detecting defects which do not have significant depth in relation to axis of the X-ray beam and defect identification 
2. A permanent record produced, good for detecting all surface and sub-surface defects and assessing the through thickness depths of defects 
3. A permanent record produced, defect identification not so reliant on operator skill 
4. No controlled areas required on site, a permanent record produced and good for assessing the extent of pipe wall thickness reductions due to internal corrosio 

Tuesday, 17 October 2017

Q:- One the advantages of ultrasonic inspection in relation to radiographic testing to;

A. Access is generally only required from one side (surface)of the component being tested
B. The designated work area must be closed off by barriers, therefore safety is increased
C. This materials can be easily examined
D. A permanent image of the defect can be obtained 

Wednesday, 11 October 2017

Q:-During welder qualification, when destructively testing pipe with a diameter less than or equal to 33.4 mm:

1. Radiography must be used
2. The entire pipe must be used for bend testing
3. One full-section tensile specimen may be substituted for the root-bend and nick-break 
4. Pipe of this diameter may not be destructively tested e. none of the above