____ Backflow Is a Reversal of Normal Flow in a System

question 8

Multiple Choice

____ backflow is a reversal of normal flow in a system caused by a negative pressure (vacuum) in the potable supply.

• A) Gravity
• B) Back-siphonage
• C) Back-pressure
• D) none of the above

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Definitions:

Economic Costs

The total value of all the resources used in the production of goods or services, including both explicit and implicit costs.

Economic Profit

The difference between total monetary revenue and the total costs of inputs (including opportunity costs), representing the financial gain exceeding the economic opportunity lost.

Normal Rate

The standard or usual rate for a task or service, often related to wages or interest.

Cost Per Bushel

A measure of the expenses incurred to produce a bushel of an agricultural product, such as grains.