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WELDING INSPECTION TECHNOLOGY WORKBOOK - MODULE 10

VT Test -  MODULE 10


Q10-1 Which of the following nondestructive testing methods are limited to the detection of surface discontinuities?


a. visual
b. penetrant
c. radiographic
d. a and b above
e. b and c above


Q10-2 To be most effective, visual inspection should be performed:


a. before welding
b. during welding
c. after welding
d. all of the above
e. none of the above


Q10-3 The time period during which the penetrant remains on the surface of the part allowing it to be drawn into any surface discontinuities is called:


a, waiting time
b. penetrating time
c. soak time
d. dwell time
e. none of the above


Q10-4 Which type of magnetizing current provides the best iron particle mobility?


a. AC
b. DC
c. DCEP
d. b and c above
e. all of the above


Q10-5 What MT technique could be used for the discovery of longitudinal flaws?


a. head shot (circular magnetism)
b. side shot
c. coil shot (longitudinal magnetization)
d. a and b above
e. b and c above


Q10-6 Which of the following magnetizing methods produce a circular magnetic field in the test
piece?


a. head shot
b. passing an electrical current through the part
c. prod
d. all of the above
e. none of the above

Q10-7 Which of the following magnetizing methods can produce a longitudinal magnetic field in the test piece?

a. head shot
b. coil shot
c. yoke
d. a and b above
e. b and c above

Q10-8 What NDT method is best for evaluating subsurface porosity?

a. PT
b. MT
c. RT
d. VT
e. all of the above

Q10-9 Which of the following statements is correct for radiographic testing?
a. A reduction in thickness will produce a lighter image on the film.
b. A low density discontinuity will produce a lighter image on the film.
c. A high density discontinuity will produce a lighter image on the film.
d. a and b above
e. b and c above

Q10-10 Radiographic testing (RT) can be performed using which of the following?

a. X-ray machine
b. Cesium 137
c. Iridium 192
d. Cobalt 60
e. all of the above

Q10-11 MT can be used most effectively to inspect which of the following?
a. austenitic stainless steel welds on carbon steel
b. austenitic stainless steel welds on stainless steel
c. carbon steel welds on carbon steel
d. a and b above
e. b and c above

Q10-12 Which of the following discontinuities will not usually be revealed using RT?

a. crack
b. incomplete joint penetration
c. porosity
d. lamination
e. none of the above


Q10-13 What device is used during radiography to indicate the resolution sensitivity of a radiograph?


a. ïQï
b. dosimeter
c. lead screen
d. all of the above
e. none of the above


Q10-14 Which nondestructive test method uses sound energy as a probing medium?


a. MT
b. RT
c. UT
d. PT
e. ET


Q10-15 The process whereby ultrasonic indications are related to dimensions in a test standard is
referred to as:


a. setup
b. calibration
c. standardization
d. synchronization
e. none of the above


Q10-16 As-welded groove welds are usually inspected ultrasonically using what technique?


a. straight beam
b. shearwave
c. angle beam
d. b and c above
e. all of the above


Q10-17 Capillary action plays a role in which NDT method?


a. ET
b. UT
c. RT
d. PT
e. MT


Q10-18 Which NDT method is considered to be a true volumetric test?


a. RT
b. UT
c. PT
d. MT
e. ET



Q10-19 Which NDT method uses an alternating current coil?


a. MT
b. UT
c. ET
d. a and c above
e. b and c above


Q10-20 Changes in heat treatment can be measured using which NDT method?


a. ET
b. RT
c. MT
d. UT
e. none of the above


Q10-21 Which of the following NDT methods can detect surface cracks?


a. RT
b. VT
c. ET
d. PT
e. all of the above


Q10-22 Which NDT method is most likely to reveal subsurface laminations in a rolled plate?


a. RT
b. UT
c. ET
d. MT
e. none of the above


Q10-23 Piezoelectricity is a property used by which NDE method?


a. ET
b. UT
c. RT
d. a and b above
e. b and c above


Q10-24 Which is the best technique for orienting magnetic lines of force when conducting MT testing?


a. two directions
b. single direction
c. residual magnetism
d. all of the above
e. none of the above


Q10-25 What resolution sensitivity is normally required for RT?



a. 2%
b. 4%
d. 5%
e. 7%
C. 9%


Q10-26 What is the basic element of evaluation in any quality control program?


a. radiographic testing
b. penetrant testing
d. visual inspection
e. all of the above
C. none of the above


Q10-27 When should the applicable job documents be reviewed?


a. after the job is completed
b. before welding begins
c. at any time when information is necessary
d. a and b above
e. b and c above


Q10-28 What is the role of the AWS CWI in NDE?


a. see that inspections are done
b. verify personnel qualifications for NDE inspection
c. prepare proper records
d. see that proper records are maintained
e. all of the above


Q10-29 A number in parentheses just above or below a test symbol describes:


a. the length of weld to be tested
b. the extent of testing
c. the number of tests to perform
d. the type of test to perform
e. none of the above


Q10-30 A number to the right of a nondestructive testing symbol refers to the:


a. number of tests to perform
b. the length of weld to be tested
c. the applicable quality standard
d. the test procedure to use
e. none of the above


Q10-31 Test information above the reference line refers to the arrow side.


a. true
b. false








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