Hard Chrome Plating Training Course

Table of Contents

Section 3 Quiz

1. Which of the following are ingredients or components of conventional hard chrome baths (check all that apply)?

a. Chromic acid.
b. Hydrofluosilicic acid.
c. Sulfuric acid.
d. Chromium trioxide.

2. Which of the following are characteristics of conventional hard chrome baths (check all that apply)?

a. High electroplating efficiency.
b. Reasonable price.
c. Free of hexavalent chromium.
d. Great throwing power.

3. What is the purpose of catalyst in a hard chrome bath (check all that apply)?

a. Heats up the chrome solution.
b. Reduces formation of chromic acid mists.
c. Improves chrome plating process efficiency.
d. Prevents plating of chrome onto tank walls.

4. Under which circumstances would you consider use of a proprietary high-speed, non-etch chrome plating bath (check all that apply)?

a. When trying to save money on plating chemicals.
b. When trying to improve corrosion resistance.
c. At a job shop with a variable workload.
d. At a manufacturing facility plating widgets.

5. Which of the following are important considerations when purchasing a rectifier for hard chrome plating (check all that apply)?

a. Voltage range.
b. Percentage of ripple.
c. Amperage capacity.
d. Energy efficiency.

6. Which of the following are true for the two bus bar configuration (check all that apply)?

a. Well suited for stick anode plating.
b. Well suited for reversible rack plating.
c. Increases the number of parts that can be plated simultaneously.
d. Requires tap switch rectifier.

7. What are the advantages of an encapsulated hood for a chrome tank (check all that apply)?

a. Reduces air emissions into the plating shop.
b. Requires platers to group parts into batches with similar plating times.
c. Helps meet EPA and OSHA regulations.
d. Saves energy.

8. Why are rinse systems installed with multiple tanks or bays (check all that apply)?

a. To minimize workload backups.
b. Increase water use.
c. Reduce wastewater generation.
d. Increases dragout rate.

9. What are the benefits of conforming anodes (check all that apply)?

a. Increases chromium deposits near the ends of parts.
b. More uniform deposits.
c. Reduces energy use.
d. Conforms to military standards.

10. What is the purpose of secondary containment (check all that apply)?

a. Prevents platers from breathing chromic acid fumes.
b. Safe storage area for plating chemicals.
c. Prevents release of plating chemicals to the environment.
d. Treats the rinse water before discharge to the city.

Continue to Section 4



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