M11-BASIC INSPECTION TECHNOLOGYREV_2024 PRACTICE TEST QUESTIONS AND ANSWERS

When weld testing using the ultrasonic method the operator must develop an inspection technique based on the Weld process, Material used and joint design The inspector must ensure that the weld is working in accordance with an approved welding procedure Brainpower Read More 0:04 / 0:15 Visual welding inspection is effective before, during and after welding operation An inspector acts as a responsible representative of an organization His decisions are governed by some form of written list of requirements that others have drawn up Ultrasonic inspections uses two main propagation methods Longitudinal and shear waves Visual welding inspection must be conducted before and after any post weld heat treatment TRUE When using magnetic particle inspection, the use of prods is prohibited by certain codes Due to the chance of causing arc strikes When the various test have been performed in accordance with the requirements, the inspector must Evaluate the results and decide whether they meet the specified requirements Radiation energy from X-ray and gamma radiation sources Cannot be felt, seen, smelled or tasted The size of hole on a penetrameter is related to the Thickness of the weldment Liquid penetrant examination of surfaces which have not been machined smooth can produce false indications Ultrasonic waves are created by passing pulses of electrical current though small copper could which vibrate in at the frequency of the current pulses. In this manner we covert electrical energy into mechanical energy TRUE In gamma radiography, colbalt-60 has wave lengths much shorter than Iridium-192 and therefore Has more penetrating power Magnetic particle examination is well suited to detecting crack in Carbon steel weldments It is the inspectors responsibility to judge the acceptability of repaired welds TRUE Examination methods can be divided up into two groups; destructive and non-destructive. Non-destructive examination methods include Radiographic, ultrasonic, magnetic particle, liquid penetrant Micro cracks may be revealed wit the liquid penetrant test method using Fluorescent dye It is essential that the inspector (Blank) when applying visual or other inspection procedures and when assessing the acceptability of welding Be fair and endeavor to exercise sound judgement When performing an evaluation of a part using magnetic particle examination Magnetic particle examination can only reveal surface discontinuities - disruptions in the continuity of the material under examination cause distortions in the induced magnetic field which force the particle towards it The following plays an important role in an inspector's ability to adequately perform his/her job Eyesight Materials for which magnetic particle inspection may be performed on include Carbon steel, martensitic stainless steel, ferrtic stainless steel. Weld defects such as (blanks) may not be detected by radiography if the beam of radiation is not directed into the plane Incomplete fusion Gamma-radiographic techniques employ the use of Naturally occurring substances which emit short wave lengths electromagnetic radiation Welding inspection should begin prior to the actual fabrication process Because of the variety of welded structures requiring inspection, an inspector is required to be proficient in all types of inspection false One of the qualifications of welding inspector is He/She mist be familiar with non-destructive testing methods Where deviations from the drawings are warranted, the inspector maybe called on to obtain official approval Procedures are not absolutely necessary to control the welding operations and quality of the structure FALSE At what stage should welding inspection begin Welding inspection should begin prior to actual fabrication operations Magnetic particle inspection utilizes a magnetic field, which is induced in non-magnetic materials FALSE When inspecting welds using magnetic particle testing, what is the most common way to induce the magnetic field when using direct or alternating current Portable yoke