Multiple Choice Questions on

Coating Principles

Questions 16 - 20

Page 4 of 4


16.

If a chemical resistance is required, it would be appropriate to use a

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one-coat system

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two-coat system

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three-coat system


17.

Chlorinated rubber dissolves in aromatic hydrocarbons which is solvent.  This solvent is called

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latent solvent

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primary solvent

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dilutent

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thinner


18.

Many times solvent is retained in the resins and it is not completely evaporated.  The retention of solvent in the binder causes

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an increase in corrosion resistance

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an increase in chemical resistance

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reduce adhesion

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increase water resistance


19.

Many times, the main active solvent is diluted by solvents called thinners. These thinners have

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more solvent power than the primary solvent

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less solvent power than the primary solvent

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zero solvent power


20.

Which one of the following types of coatings are widely used by Saudi Aramco in their oil pipelines?

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chlorinated rubber

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fusion-bonded epoxy

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alkyd

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polyester