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TIN PLATING
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1) Which is the atomic number of tin?
30
50
25
20
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Correct Answer: 50
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1) Which is the atomic number of tin?
30
50
25
20
2) Which material, Tin coating is used for corrosion resistance?
Steel
Gold
Aluminium
Silver
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Correct Answer: Steel
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2) Which material, Tin coating is used for corrosion resistance?
Steel
Gold
Aluminium
Silver
3) Which is the current density for acid bath?
2.0 to 2.5 A/dm<sup>2</sup>
1.0 to 2 A/dm<sup>2</sup>
5.0 to 5.5 A/dm<sup>2</sup>
9.0 to 9.5 A/dm<sup>2</sup>
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Correct Answer: 1.0 to 2 A/dm<sup>2</sup>
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3) Which is the current density for acid bath?
2.0 to 2.5 A/dm<sup>2</sup>
1.0 to 2 A/dm<sup>2</sup>
5.0 to 5.5 A/dm<sup>2</sup>
9.0 to 9.5 A/dm<sup>2</sup>
4) Which is the chemical symbol of tin?
Sb
Sn
Se
Sa
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Correct Answer: Sn
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4) Which is the chemical symbol of tin?
Sb
Sn
Se
Sa
5) Which is prevented by tin coating?
Rust formation
Hardness
Brittleness
Heat exposure
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Correct Answer: Rust formation
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5) Which is prevented by tin coating?
Rust formation
Hardness
Brittleness
Heat exposure
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