Ultrasonic Test Questions

M/s. Smart technocrats & Consultancy Services (I) PVT. Ltd.Sector- 18A, Plot No-5, Nerul , Navi Mmbai-400706 ( MH)

Tel: 022-2770 6055 , Fax No – 022-2771 3643 E-mail : [email protected], Web site :- www.smarttechnocrats.com

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ULTRASONIC TESTING LEVEL-II (SPECIFICATION)

Time: 30 min. Each Question: 5 Marks

(Answer the following question based on ASME Section V article 5, SA388, SA588, SA435, SA577, SE797, SE273, SE745 )

Q.1. Written procedure shall establish value for each requirement:

a. Multiples Valuesb. Specific Valuesc. Single or range of valuesd. None of abovee. All of the above

Q.2. When requalification of procedure is NOT required:

a. Essential variables are changedb. Non essential variables are changedc. Both Essential and Non Essential Variables are changedd. Article 5 of ASME does not specify about ite. All of above

Q.3. Ultrasonic Flaw Detector shall be capable of:

a. Have a step gain control of 4Db or lessb. Have a Damping control to reduce sensitivityc. Only range between 1MHz to 5 MHzd. None of abovee. All of the above

Q.4. Calibration Blocks requirements are:

a. Calibration Block shall be of same productb. Calibration Block shall be of material specification or equivalent P number groupingc. Heat Treated as the material being examinedd. Finish shall be representative of scanning surface of job materiale. All of the above

Q.5. UFD calibration period specified in Article 5 of ASME:

a. Not to exceed 3 monthsb. Not to exceed 1yearc. As per policy of the companyd. As advised by UT consultant

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e. Whenever Client demands



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Q.6. Which one is Essential variable?

a. Personnel Performance requirement, when if requiredb. Personnel Qualification requirementsc. Automatic alarm and on recording equipment when applicabled. Records, including minimum recording Datae. Couplant Brand Name on Type

Q.7. In contact Testing, Temperature of specimen shall be :

a. Below curie point of probeb. Code does not specify itc. Depends upon couplant, to be usedd. Within 25˚F(14˚C) differential between job and calibration Blocke. None of Above

Q.8. When recalibration of UFD with a given probe is considered necessary :

a. Sensitivity have changed by more than 20% or 2Db of at its Primary Reference Levelb. Range distance point has changed on sweep line by more than 20% or 5% of full sweepc. Range distance point has changed on sweep line by more than 10% or 5% of full sweepd. Both a and be. All a, b and c

Q.9. UT Operator shall prepare report:

a. Based on Article T-591 and T-592b. UT Operator can submit verbal reportc. UT operator may or may not prepare a reportd. Prepare the report only when client needse. Based on his company proforma which may or may not be meeting the requirement of

Article 5.

Q.10. Couplant including Additives shall be used:

a. Surface shall not exceed 250 ppm for Nickle base Alloysb. Halides shall not exceed 250 ppm for S.S or Titaniumc. No limit in specifiedd. Both a and be. All of above

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Q.11. What is the frequency of the probe for the examination of Austenitic Steel Forgings as per SA-388?

a. 0.4MHz- 1 MHzb. 1MHz-5MHzc. 0.1MHz – 0.4MHzd. None of the abovee. A, B, & C

Q.12. In Ultrasonic Inspection , the horizontal linearity should:

a. The UT Instrument shall provide linear presentation within 5% of the values for 75% FSH b. Code does not specify itc. The UT Instrument shall provide linear presentation within 5% of the values for 100% FSHd. The UT Instrument shall provide linear presentation within 5% of the values for 25% FSHe. None of Above

Q.13. The transducer shall have a maximum active area of :

a. 64mm2

b. 640mm2

c. 1 in2

d. Both a and be. Both b and c

Q.14. The surface roughness of the inspection surface shall be a minimum of:

a. 150mb. 200mc. 125md. None of the abovee. All of the above.

Q.15. For manual scanning, the scanning speed of the shall never exceed:

a. 100 mm/secb. 06 in/secc. 120 mm/secd. The scanning speed shall never exceed the speed at which calibration shall be made.e. All of above

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Q.16. The reference block for the calibration of the DAC curve to inspect steel forgings 40mm or less shall include:?

a. 1/16th in. FBH b. 1/8th in FBHc. 1/4th in FBHd. None of the abovee. All of the above

Q.17. In SA388, the reporting criteria shall include :

a. All indication irrespective of FSH exceeding DAC.b. Code does not specify itc. The indication obtained shall exceed DAC for reporting and the minimum distance between

two indications shall be 12.5mm or more.d. The indication obtained shall exceed DAC for reporting and the minimum distance between

two indications shall be 25.4mm or moree. None of Above.

Q.18. If design of the inspection volume includes bore, taper or features near surface which impairs the inspection of the forging then:

a. The inspection shall be stopped and NDT supervisor & NDT Level shall be consulted b. The inspection shall be carried out by using delay blocks placed on probe.c. The inspection shall be carried out using dual probesd. Both a and be. Both b and c

Q.19. The surface roughness of the inspection surface shall be a minimum of:

a. 150mb. 200mc. 250md. None of the abovee. All of the above.

Q.20. As per the inspection standard SA-435 the probe frequency shall be minimum of:

a. 1-5 MHz & 1 MHz only if the contract with client specifies it and clear trace pattern can be produced

b. 4 MHz 7 1 MHz only if the contract with client specifies it and clear trace pattern can be produced

c. 2.5 MHz & 1 MHz only if the contract with client specifies it and clear trace pattern can be produced

d. 1 MHz only if the contract with client specifies it and clear trace pattern can be produced

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e. None of the above



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Q.21. The calibration of the UT instrument shall be done by:?

a. Test frequency shall have a backwall of 50%-75%FSH while sweeping a length of ‘t’ or 6” b. Test frequency shall have a backwall of 25%-55%FSH while sweeping a length of ‘t’ or 6”c. Test frequency shall have a backwall of 5%-20%FSH while sweeping a length of ‘t’ or 6”d. None of the abovee. All of the above

Q.22. In SA435, the reporting criteria shall include :

a. All indication irrespective of FSH exceeding DAC.b. Code does not specify itc. The indication causing total loss of the backwall for over a diameter of 3” or one half of the

plate thickness with the client’s representative witnessing the same .d. C & The manufacturer and client can discuss rejection by UT with the object of repair .e. None of Above.

Q.23. The ultrasonic acceptance of the plates with the SA435 shall be:

a. The approved plates shall be marked in red with a tick mark b. The approved plates shall be marked with green and stenciled or stamped ‘ACCEPTED”.c. The approved plates shall be marked with red and stenciled or stamped ‘CORRECT”d. The approved plates shall be marked and stenciled or stamped ‘435”e. Both b and c

Q.24. The transducer frequency for the shear wave inspection of SA577 shall be a minimum of:

a. 4 MHzb. 1-5 MHzc. The highest frequency that will permit the detection of the required calibration notch which

results in the amplitude of the indication causing a 3:1 SNR d. None of the abovee. All of the above.

Q.25. ASME SA577 specifies the detection of:

a. Lack of Fusion, Lack of Penetration, HAZ Cracks, Slags.b. Voids, Laminations, Laps, Seams & Bursts.c. Porosity, Voids and all types of specular discontinuities.d. All types of Laminar, Specular & Linear discontinuities. e. None of the above.

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