COPPER PLATING - Practice Mode

1) Where the conventional bright chromium plating type is employed?

Electronic components Automobile fitting Electrical contacts Flatware industries

Correct Answer: Automobile fitting

2) Which is used for the suspension of articles to be bright chromium plated?

Bus bars Steel iron rods Jigs (or) Racks Iron angles

Correct Answer: Jigs (or) Racks

3) Which defect occurs due to inefficient contacts of articles in bright chromium plating?

Brown stains on deposit Dull, grey, rough deposit Blistered deposits Little chromium deposit on the article

Correct Answer: Brown stains on deposit

4) Which type of plating is applied for rotating mechanical parts?

Bright chromium plating Hard chromium plating Brass plating Copper plating

Correct Answer: Hard chromium plating

5) What is the range value of chromic acid used for high speed hard chromium plating solution?

100 g/l to 150 g/l 200 g/l to 225 g/l 250 g/l to 300 g/l 300 g/l to 325 g/l

Correct Answer: 250 g/l to 300 g/l

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