13 Questions
What are welding defects?
Irregularities formed in the given weld metal due to wrong welding process or incorrect welding patterns
What are porosity and blowholes in welding?
Porosity is caused by trapped gases, while blowholes are a group of small bubbles
What is undercut in welding?
Formation of grooves in the weld toe, which decreases the cross-sectional thickness of the base metal
What causes weld cracks?
Excessive heat used in the welding process
Why are some welding defects never accepted?
They weaken the weld and workpiece
Which type of welding defect occurs when there is a shortage of suitable fusion between the metal and weld?
Incomplete Fusion
What is the dangerous substance that appears as a product of stick welding, flux-core arc welding, and submerged arc welding?
Slag Inclusion
What is defined as the distance from the uppermost surface of the base plate to the maximum extent of the weld nugget?
Incomplete Penetration
What are tiny metal particles ejected from the arc during welding and accumulate on the base metal throughout the weld bead along its length?
Spatter
What type of welding defect occurs when the deposited metal starts to develop cracks from the nearby edge and solidify as the crack increases?
Hot Tear
What is the dangerous substance that appears as a product of stick welding, flux-core arc welding, and submerged arc welding?
Slag
What type of welding defect occurs when the metal groove is not entirely filled, leading to the weld metal not fully spreading through the joint thickness?
Incomplete Penetration
What is the difference in size and location between the positions of the two metal plates before and after welding due to the temperature gradient present at several points along the weld joints?
Distortion
Explore the concept of welding defects in this quiz, including their causes, identification, and permissible limits. Learn about irregularities in weld metal and how they differ from the desired weld bead shape, size, and quality.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
