A Pipe of Diameter Three Cm Is Replaced by One

question 32

Multiple Choice

A pipe of diameter three cm is replaced by one of the same length but of diameter six cm.If the pressure difference between the ends of the pipe remains the same,by what factor is the rate of flow of a viscous liquid through it changed?

• A)2
• B)4
• C)8
• D)16

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Definitions:

Total Output

The total quantity of goods or services produced by an economy or a firm within a specific period.

Marginal Product

The additional output produced by adding one more unit of a specific input, holding all other inputs constant.

Fixed Cost

Costs that do not vary with the level of production or sales, such as rent or salaries.

Hail Insurance

A type of insurance policy specifically designed to protect crops from hail damage.