Methods of Reducing the Level of Bacterial Contamination in Waterlines

question 16

Multiple Choice

Methods of reducing the level of bacterial contamination in waterlines include:

• A)yearly replacement of all water lines.
• B)back-flushing the lines with a bleach solution.
• C)self-contained water reservoirs.
• D)using waterlines of smaller diameter.

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Definitions:

Variable Expense Ratio

A ratio computed by dividing variable expenses by sales.

Operating Leverage

A financial concept that measures the proportion of fixed costs in a company's cost structure, indicating its sensitivity to changes in sales volume.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs and generating profit.

Net Operating Income

A measure of the profitability of a business's core operational activities, excluding any income or expenses not directly related to its main operations.