Which of the Following Is True

question 42

Multiple Choice

Which of the following is true?

• A)A streamline can only be defined for irrotational flow.
• B)A streamline cannot be defined for turbulent flow.
• C)Streamlines cannot cross in laminar flow, but can cross in turbulent flow.
• D)A streamline is the path that a tiny element of fluid would take as the fluid flows.
• E)The velocity vector of a fluid element is always perpendicular to the streamline.

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Definitions:

Fixed Costs

Expenses that do not change with the level of production or sales in the short term, such as rent or salaries.

Unit Selling Price

The amount of money charged to the customer for a single unit of a product or service.

Unit Sales Price

The price at which a single unit of product is sold, reflecting the cost plus any markup or minus any discounts.

Unit Variable Cost

The cost per unit to produce a single product, encompassing materials, labor, and all other expenses that fluctuate with the level of production.