GATE ME · 2020 · ME
Question 44: Casting, Forming and Joining Processes
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Question 44
MENAT2 marksNeeds review
A steel part with surface area of 125 cm² is to be chrome coated through an electroplating process using chromium acid sulfate as an electrolyte. An increasing current is applied to the part according to the following current time relation:
where,
= current (A) and
= time (minutes). The part is submerged in the plating solution for a duration of 20 minutes for plating purpose. Assuming the code efficiency of chromium to be 15% and the plating constant of chromium acid sulfate to be 2.50 × 10⁻² mm³/A·s, the resulting coating thickness on the part surface is ______ μm (round off to one decimal place).Log in to check the answer
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2020ME
GATE ME 2020 · Paper 1
Mechanical Engineering · Original paper archive
- Section
- Mechanical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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