Which Is the Order of Purification Procedures for Water

question 30

Multiple Choice

Which is the order of purification procedures for water

• A)flocculation → chlorination → filtration → particulate settling
• B)synthetic organic chemicals → particulate settling → filtration
• C)chlorination → filtration → particulate settling → nitrification
• D)particulate settling → flocculation treatment → filtration → chlorination

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Definitions:

Ordinary Maintenance

Routine upkeep and repair of equipment and facilities to keep them in their original condition without significantly enhancing their value or extending their life.

Book Value

The net asset value of a company calculated by total assets minus intangible assets (patents, goodwill) and liabilities.

Market Value

The existing rate at which an asset or service can be sold or acquired.

Revenue Expenditure

Expenses incurred during the normal course of business that are expected to be consumed within the current accounting period.