GATE PI · 2019 · PI
Question 47: Joining of Materials
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Question 47
PINAT2 marksNeeds review
The heat transfer efficiency in arc welding of a plate using a current of 250 A at 20 V is 90%. The heat required to melt the material is 10 J/mm³. If the cross-sectional area of the weld joint is 30 mm² and the travel speed is 5 mm/s, the melting efficiency (in %) is ______ (round off to 2 decimal places)
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2019PI
GATE PI 2019 · Paper 1
Production and Industrial Engineering · Original paper archive
- Section
- Production and Industrial Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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