Introduction to Welding (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What makes welding stronger than mechanical fastening methods?
What makes welding stronger than mechanical fastening methods?
Metals fuse at molecular level
What is an arc burn?
What is an arc burn?
Defect from arc striking wrong area
What happens in the heat-affected zone (HAZ)?
What happens in the heat-affected zone (HAZ)?
Metal heats but doesn't melt
What is DCEN also called?
What is DCEN also called?
Straight polarity
What metal thickness range is suitable for spot welding?
What metal thickness range is suitable for spot welding?
to mm
Which application commonly uses corner joints?
Which application commonly uses corner joints?
Box construction
What is the main limitation of edge joints?
What is the main limitation of edge joints?
Not for high-stress applications
What spacing should be used between pieces in a lap joint?
What spacing should be used between pieces in a lap joint?
No gap
Why are butt joints preferred for high-strength applications?
Why are butt joints preferred for high-strength applications?
Even stress distribution
What does the reference line in welding symbols represent?
What does the reference line in welding symbols represent?
Horizontal foundation showing weld info
What does a circle at the arrow junction indicate?
What does a circle at the arrow junction indicate?
Weld all around the joint
What does the triangular flag symbol indicate?
What does the triangular flag symbol indicate?
Field weld (on-site)