This document provides information about ultrasonic testing including calibration techniques, acceptance criteria, inspection procedures, transducer selection, and defect identification. It consists of 20 multiple choice questions related to these topics, with the correct answers provided. Some key points covered are that artificially made side drilled holes or longitudinal notches are used to calibrate systems, lack of side wall fusion up to 1.5mm is rejected, materials pass if no rejectable indications are found, and records must be kept if materials fail inspection.

1. ULTRASONIC TESTING
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SPECIFIC
(Solve question 1 to 5 according to given documents)
1. As per SE-213, for calibrating the ultrasonic system...
a. Artificially made Side drilled holes are employed
b. Transversenotches with any dimensions areemployed
c. Artificially made Longitudinal reference notches are employed
d. Artificially made transverseas well as longitudinal notches are
employed if transverseand longitudinal inspection is desired.
2. Lack of side wall fusion of length 1.5 mm in pipe welding is
a. Accepted as stated in procedure
b. Rejected
c. Further NDT technique required to check length
d. Accepted if it’s length is below ½ t of weld joint
3. Material is considered as passed ultrasonic examination if...
a. No indication or no rejectable indication is found during test
b. Less than 20% weld length is rejected
c. Less than 15 % weld length is rejected
d. If radiographic testing is passed
4. When specified, after ultrasonic examination....
a. Permanent record not needed if material is passed
b. Permanent record needed if material is rejected
c. Permanent record is needed if material is passed
d. Need not to maintain the records if materials are passed or reject
5. Imperfections which producea responsegreater than 20% of reference
level....
a. Are acceptable
b. Are rejectable
c. Should evaluate for their shape, identity and location
d. Should be recorded

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6. Lamination is discontinuity coming in which of the following process?
a. Forging
b. Welding
c. Casting
d. Rolling
7. During inspection of casting transducer should
a. Have high frequency
b. Have ultra high frequency
c. Have low frequency
d. Frequency doesn’tmatter in inspection of casting
8. In casting shrinkageoccurs
a. Only after transformation from liquid to solid
b. Only during transformation from liquid to solid
c. Before, during and after transformation from liquid to solid
d. Only when the metal is in liquid state
9. A millwork process used mostto form metal into the three-dimensional
shapeis:
a. Welding
b. Rolling
c. Forging
d. Casting
10.In which welding process fusion of electrode not happens?
a. MIG
b. TIG
c. SMAW
d. SAW
11.In immersion testing the transducers areof
a. Low frequency transducers
b. High frequency transducers
c. Dual crystaltransducers
d. None of the above

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12.Which Couplant transmitting more sound through Perspexto steel
interface?
a. Water
b. Motor oil
c. Grease
d. Glycerine
13.Focused transducers areused to increase...
a. Resolution
b. Sensitivity
c. Penetration power
d. Both a & b
14.Plan view displays or recording of a part under examination is called...
a. A C-scan display
b. An A-scan display
c. An X-axis plot
d. A strip chart recording
15.Which circuit modifies the return signals from the receiving transducer
into a formsuitable for display on an oscilloscope?
a. Pulser
b. Receiver amplifier
c. Clock
d. Sweep
16.the ultrasonic test method in which finger damping is most effective in
locating a discontinuity is:
a. shear wave
b. longitudinal wave
c. surfacewave
d. compression wave
17.What law can be used to calculate angle of refraction?
a. Poisson’s ratio law
b. Snell’s law
c. Charles law
d. Both b & c

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18.Which of the following defect is easily find by ultrasonic testing compare
with radiography testing?
a. Blow hole
b. Excess penetration
c. Porosity
d. Lamination
19.In which ultrasonic testing transducers havearray of crystals?
a. Manual ultrasonic testing
b. Phased array
c. TOFD
d. None of above using this type of transducers
20.If probehas large diameter then it has __
a. Large beam spread
b. Less beam spread
c. No effect on beam spread
d. Low frequency

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1. d 11. b
2. b 12. d
3. a 13. d
4. c 14. a
5. c 15. b
6. d 16. c
7. c 17. b
8. c 18. d
9. c 19. b
10. b 20. b