An Air-Conditioning System Is Designed to Fill a Room of 10

question 42

Multiple Choice

An air-conditioning system is designed to fill a room of 10 m $\times$ 8 m $\times$ 6 m with fresh air every 20 minutes.If the circular air duct has a diameter of 13 cm,calculate the speed of airflow in the duct.

• A)None of the answers below
• B)450 m/s
• C)2.4 m/s
• D)7.5 m/s
• E)1.0 m/s

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Definitions:

Revenue Accounts

Accounts that track the income generated from the sale of goods and services, investments, and other sources during the accounting period.

Expense Accounts

Accounts used to track the costs incurred by a business in the course of its operations, not directly tied to the production of goods or services.

End-Of-Period Spreadsheet

A worksheet used at the end of an accounting period to compile all balances from ledgers, facilitating the preparation of financial statements.

Dividends Account

An account used in double-entry bookkeeping to record dividends paid out to shareholders during an accounting period.