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The true colour of water is measured on — Answer & Solution | Civexa

Environmental Engineering · Water Quality Parameters

Water Quality Parameters MCQ with answer and solution

The true colour of water is measured on

Solution

Concept

Colour measurement

Step-by-step solution

1. True colour is compared with standard platinum-cobalt solutions (Hazen units).

Explanation

The unit is the platinum-cobalt (Hazen) unit.

Why the other options are wrong

Silica and nickel scales are used for turbidity or other tests.

Shortcut

Pt-Co scale.

Correct answer: A) Platinum cobalt scale

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