NDT Quiz 2
Q1. Porosity can be identified visually by which of the following descriptions?
a. Sharp tipped linear shapes
b. Mechanical notch
c. Nonmetallic substance
d. Spherical void
Q2- Undercut is a discontinuity that can be identified by which of the following descriptions?
a. Weld metal that fails to penetrate
b. Mechanical notch
c. Sharp tipped linear shape
d. Tungsten inclusion
Q3- Undercut can be caused by:
a. Improper transverse welding angle
b. Insufficient weld heat
c. Improper joint design
d. Hardened weld metal
Q4- Which is the least expensive NDT method other than visual testing?
a. Radiography
b. Liquid Penetrant
c. Magnetic Particle
d. Ultrasonic
Q5- When performing an NDT examination on a nonferrous material such as aluminum or nickel alloy, which of the following is not used?
a. Liquid Penetrant
b. Magnetic Particle
c. Ultrasonic
d. Radiographic
Q6- Which NDT examination method uses a thin, transparent flexible plastic base panel coated with gelatin containing silver bromide?
a. Ultrasonic
b. Radiographic
c. Visual
d. Magnetic Particle
Q7- The weld discontinuity that results from improper termination of the welding arc is referred to
as:
a. undercut
b. overlap
c. crater crack
d. incomplete fusion
Q8- Which of the following discontinuities is less likely to be found visually?
a. toe crack
b. undercut
c. lamellar tear
d. overlap
Q9- Underbead cracks can result from which of the following welding practices?
a. use of wet electrodes
b. welding on contaminated steels
c. welding over paint
d. all of the above
Q10- Excessive weld metal buildup on a groove weld is referred to as:
a. excess convexity
b. excess weld reinforcement
c. overfill
d. all of the above