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Multiple Choice Questions on Coating Principles |
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| Questions 1 - 5 |
Page 1 of 4 |
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1. |
Which one of the following is true about inhibitive coating system? |
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It must have a primer and a top coat |
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The primer must not react with moisture |
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The primer must react with moisture to decrease the corrosion rate of steel |
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The top coat must be impervious to oxygen, ions, and carbon dioxide |
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2. |
Inorganic zinc coatings have shown excellent performance in corrosive atmospheres. The basic ingredient of the zinc coating system is the primer which is often |
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red lead |
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vinyl |
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zinc |
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3. |
The paints usually based on bitumen tar or epoxy, are called |
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barrier coatings |
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infinitive coatings |
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cathodically protective coatings |
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4. |
Which one of the following is not a primary function of primers? |
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Adhesion |
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Resistance to corrosion |
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Cohesion |
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Intercede bond |
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5. |
Which one of the following is not a function of the top coat? |
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Provide a sealing for the coating system |
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Form a barrier to the environment |
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Provide strong cohesion |
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Provide a pleasing appearance |
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