Resistance Spot 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 causes heat generation in resistance welding?
What causes heat generation in resistance welding?
Current encountering resistance
Why are copper electrodes used in spot welding?
Why are copper electrodes used in spot welding?
Excellent conductivity & heat dissipation
Which materials are NOT required in resistance spot welding?
Which materials are NOT required in resistance spot welding?
Flux, filler rods, or shielding gases
How quickly does the spot welding process typically occur?
How quickly does the spot welding process typically occur?
Fractions of a second
What is the primary automotive application of spot welding?
What is the primary automotive application of spot welding?
Joining steel body panels
How does seam welding differ from spot welding?
How does seam welding differ from spot welding?
Creates continuous welds vs. spots
What type of electrodes does seam welding use?
What type of electrodes does seam welding use?
Rotating wheel electrodes
What applications suit seam welding best?
What applications suit seam welding best?
Leak-tight joints like fuel tanks
Why is standard mains electricity (230V AC) unsuitable for resistance welding?
Why is standard mains electricity (230V AC) unsuitable for resistance welding?
High voltage hazard & insufficient current
What equipment converts mains power for welding?
What equipment converts mains power for welding?
Step-down transformers & rectifiers
What current levels are typical in resistance welding?
What current levels are typical in resistance welding?
Thousands of amperes
How many spot welds can modern automotive bodies contain?
How many spot welds can modern automotive bodies contain?
Over 5,000 individual weld points