A-06: Elements Of Material Science And Welding Technology Flashcards
With regards to a form of NDE, a transducer is part of the equipment required for a a/n:
A. Eddy current test
B. Radiographic test
C. Penetrant test
D. Ultrasonic test
D. Ultrasonic test
What form of Non-Destructive Examination uses gamma rays?
A. Radiographic testing
B. Ultrasonic testing
C. Eddy current testing
D. Fluorescent testing
A. Radiographic testing
Stick welding is also referred to by which acronym ?
A. GMAW
B. SMAW
C. GTAW
D. SAW
B. SMAW
A trained UT technician can document not only the location and size of the discontinuity but also:
A. The type of discontinuity
B. The probability of failure due to the discontinuity
C. The volume of the discontinuity
D. The grade of the discontinuity
A. The type of discontinuity
Aluminum is produced from:
A. Copper and Zinc
B. Bauxite
C. No -Ferrous ore
D. Aluminum ore
B. Bauxite
How can the mechanical properties of a metal be restored after welding?
A. Quench the weld
B. Carry out a post weld Heat treatment
C. After the weld is completed, allow the metal to cool quickly and then raise the temperature again
D. Carry out a post-heat stress treatment and quench
B. Carry out a post weld heat treatment
The problem with using brittle metals is that:
A. They can break suddenly and without warning
B. They cannot be sharpened
C. They cannot withstand high temperatures
D. They are not very strong
A. They can break suddenly and without warning
Which section of the ASME codes deals with welding?
A. Section lx
B. Section l
C. Section vll
D. Section lv
A. Section lx
What are the main component metals of “white metal” ?
A. Lead and tin
B. cooper and iron
C. Bronze and tin
D. Aluminum and lead
A. Lead and tin
Arc welding produces:
A. A puddle of molten metal at the electrode tip
B. A weld which has inferior metal properties than the parent metals
C. As adhesive reaction between the metals
D. No splatter, and minimal ultraviolet energy
A. A puddle of molten metal at the electrode tip
A material resists indentation. It demonstrates the mechanical property called
A. Brittleness
B. Elasticity
C. Toughness
D. Hardness
D. Hardness
In order to avoid residual stresses after welding, alloy steels:
A. Cannot contain any copper
B. Must contain copper
C. Should be heated before, during and after welding
D. Must be heated after welding
C. Should be heated before, during and after welding
When talking about welding, what is the “parent metal” ?
A. It is the filler rod metal
B. The pieces of metal that are being welded together
C. It is the original batch of metal the welded pieces were made of
D. It is the weld itself
B. The pieces of metal that are being welded together
What are the welds called which are carried out on the parts of a pressure vessel which directly contains the internal forces generated?
A. Pressure boundary welds
B. Pressure integrity welds
C. Pressure mitigation welds
D. Pressure containment welds
A. Pressure boundary welds
What kind of problems can be detected using the visual method while a weld is taking place?
A. The welding machine current settings
B. The formation cracks
C. The concavity of the weld
D. The width of the root opening
A. The welding machine current settings
Which of the following is NOT a similarity between brazing and soldering?
A. Both melt together the filler and base metals together
B. Both are adhesive processes
C. Both use capillary action to draw the filler metal into the weld joint, where it adheres to the surfaces being joined
D. Both use filler metal that is different from the parent metal
A. Both melt together the filler and base metals together
Which of the following would be used to reduce the temperature gradient in order to attain a slower cooling rate of a weld?
A. Air cooling the weld
B. Post-heat the welded area
C. Quenching the component in water
D. Preheating the heat affected zone
D. Preheating the heat affected zone
When are incorrect root openings identified during visual inspection?
A. After the parts are tacked together for welding
B. When the parts are being tack-welded
C. Before the parts are tacked together for welding
D. Only when the inspector allows the welder to do so
A. After the owners are tacked together for welding
Thick welds are:
A. Usually not acceptable
B. Done in multiple passes
C. Typically done in two passss
D. Done exclusively with double welds
B. Done in multiple passes
What is impact strength also known as?
A. Ultimate strength
B. Yield strength
C. Brittleness
D. Toughness
D. Toughness
