GATE ME · 2021 · ME
Question 38: Casting, Forming and Joining Processes
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Question 38
MENAT2 marksNeeds review
A spot welding operation performed on two pieces of steel yielded a nugget with a diameter of 5 mm and a thickness of 1 mm. The welding time was 0.1 s. The melting energy for the steel is 20 J/mm³. Assuming the heat conversion efficiency is 10%, the power required for performing the spot welding operation is ____________ kW (round off to two decimal places).
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2021ME
GATE ME 2021 · Paper 2
Mechanical Engineering · Original paper archive
- Section
- Mechanical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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