NDT LEVEL-III SPECIFIC EXAMINATION
RT TESTING
Answer Question I thro’ 6 W.R to QC/WP/00/02
1) Vision examination requirement for Radiographic Interpreter A) near distance acuity checked annually
B) Color Perception using pseudo Is chromatic color vision C) Both A & B
D) Radiographic Interpreter need not be examined for vision 2) Training requirements for RT is.
A) Level I – 12 hours Level II – 24 hours B) Level I – 24 hours level II – 48 hours C) Level I – 40 hours Level II – 40 hours D) None of the above
3) Experience requirements for RT Level II is
A) Minimum 65 hours in RT & min. 130 hours in NDT B) Minimum 35 hours in RT & min. 130 hours in NDT C) Minimum 630 hours in RT & min. 1200 hours in NDT D) minimum 200 hours in RT min. 400 hours in NDT 4) The LEVEL II Radiographic Interpreter is
A) Qualified to perform radiographic testing and interpret the films according to applicable Codes.
B) Qualified to perform radiographic testing if assisted by a RT Level II C) Qualified to interpret films according to applicable codes
D) None to the above
5) Requirements for RT specific examination is A) It shall be approved by the NDT Level III
B) Is shall address the equipment, operating procedures and the techniques that the candidate
C) May encounter in his job assignments and acceptance criteria of generally used codes Both A & B
D) None of the above
Answer Question 6 thro 9 W.R. to QC/PROC/05/31 6) procedure AHS/GEN-RT/01 is acceptable to
A) Radiography of groove weld joints in plates pipes, vessels. B) Radiography of forgings & castings as valves
D) All of the above
7) Surface preparation requirements prior to radiography
A) Surfaces shall satisfy the requirements of the applicable materials specifications. B) The weld ripples or welds surface irregularities on both inside (where accessible) and
Outside shall be removed to such a degree that the resulting radiographic image cannot mask or be confused with the image of any discontinuity.
C) All of the above are true D) D) Only A is true
8) Which of the following statements are true
A) The finished surface of at butt welded joints may be flushed with the base material. B) Butt welded joints may have reasonably uniform crowns with reinforcement not to
exceed that specified in the referencing code section. C) All of the above are true
D) none of the above are true 9) All field radiography shall be performed by
A) Only A Level III
B) Either a level II, level II or a level I
C) A crew consisting of 2 personal at least a level II and I D) Field radiography is not applicable to this procedure Answer Question 10 thro 27 shall be answered W.R. to ASME sec. V 10) As per the above procedure primary reference standard is
A) National standard step tablet or step wedge calibration film B) Reference transmission density SWF
C) Calibrated transmission density film which is calibration by manufacture. 11) Calibration of reference SWF shall be
A) Done by using densitometer calibrated using secondary reference standard B) Done at the frequency of 3 months
C) Done by using densitometer calibrated using primary reference standard at the frequency of 12 months
D) A & B above
12) Step wedge calibration film shall have been verified within the last year by comparison with A) Calibrated densitometer of the factory
B) Comparison with reference step wedge film C) Comparison with national standard step tablet D) None of the above
13) Which of the statements below is false for densitometer
A) Initial calibration shall be done using a primary reference standard B) Densitometer shall be calibrated every 90 days using a reference SWF
C) Tolerance for densitometer readings is ± 0.05 density units from the readings marked on the SWF
D) Periodic verification of densitometer shall be done at the beginning of each shift E) None of the above are false
14) The penetrameter is used to
A) Determine the size of the cracks and pores that can be detected B) Determine the crack depths that can be detected
C) Determine the critical flaw size
D) Indicate the quality of the radiographic technique 15) The sensitivity requirement 2-2t represents
A) Penetrameter thickness 2*the specimen thickness with the required penetrameter hole 2% of the specimen thickness
B) Penetrameter thickness 2% of specimen thickness with the required penetrameter hole 2 x the penetrameter thickness
C) Penetrameter thickness 2% of specimen thickness with the required penetrameter hole 2% of the specimen thickness
D) Penetrameter thickness 2% of specimen thickness with the required penetrameter hole 4% of the penetrameter thickness
16) Which of the following is not a factor to be considered to reduce geometric unsharpness? A) Source to film distance
B) Object to film distance C) Source strength D) Source size
17) As per this procedure for a tube of ¾” outer diameter and a wall thickness of 6mm, the penetrameter to be used is
A) 12 B) 15 C) 17 D) 25
18) Using the DWDI technique, the image recorder on a radiographic film is A) Circular
D) None of the above
19) While taking radiograph of a tube 3”in diameter using this procedure which of the following statements is true
A) 3 penetrameter need to be placed each separated by 120 B) Wire type penetrameter should not be used
C) The image quality indicator can be placed on the source side only. D) Use by penetrameter is optinal.
20) Poor definition can be improved by doing all but one of the following A) Increase sources to film distance
B) Use a smaller physical sources size C) Change from class II to class I film D) Change from lead to fluorescent screens 21) Which of the statements below are true
A) Where inaccessibility prevents hand placing the penetrameter on the sources side it shall be placed on the film side in contact with the part being radiographed.
B) A lead letter “F” shall be placed adjacent or on the penetrameter but shall not mask the essential hole or wire
22) Transmitted film density at the body of the body of the hole penetrameter or adjacent to the designated wire and the area of interest for radiographs made with gamma-ray shall be A) 1.8 min for single film viewing and 4.0 max
B) 2.0 min for single film viewing and 4.0 max C) 1.3 min for single film viewing and 4.0 max D) None of the above
23) For penetrameter design the reference standards are; A) SE 94
B) SE 1025, SE 747 C) SE 199
D) None of the above
24) For double wall exposure- double wall view the diameter of wires (in penetrameter) shall be based on :
A) Nominal single wall thickness of specimen B) Nominal double wall thickness of specimen C) OD of pipe
25) In double wall exposure- double wall view, the penetrameter shall be used on : A) Film side
B) Source side
C) There is no specific requirement
26) In double wall exposure – double wall view, SFD calculation for determination of Ug, is based on : A) The thickness of pipe
B) The ID of pipe C) The OD of pipe D) None of the above
27) Which of the statements below is applicable to shim?
A) Shim shall be of material radiographically similar to the weld metal B) Shall be placed between the part and penetrameter
C) The thickness of shim shall be such that the radiographic density throughout the area of interest is no more minus 15% from the density throughout the penetrameter
D) All of the above
Question 28 shall be answered with ref. to ASME Sec. VIII Div. 1
28) On a radiograph of a welded joint of thickness 25mm an isolated rounded indication appears size of which is 0.375”
A) This is acceptable B) This is not acceptable
C) Sec. VII does not give acceptance criteria for elongated indications Question 29 shall be answered W.R.T. AWS D1.1
29) As per AWS D1.1 a rounded discontinuity is one
A) In which its length is 3 times its width or less and may be round or irregular and may have tails
B) In which its length is more than 3 times its width C) In which its length is equal to 6 times its width Question 30 shall be answered W.R.T. ASME B31.3
30) Random Examination as per ASME B31.3 is
A) Complete Examination or a percentage of a specified kind of item in a designated lot of piping
C) Specified partial examination of each of a specified kind of item in a designated lot of piping