A System Has an Availability of 90% and a Mean

question 88

Multiple Choice

A system has an availability of 90% and a mean time to repair of 48 hours. What is the mean time between failures?

• A) 400 hours
• B) 432 hours
• C) 464 hours
• D) 496 hours
• E) 528 hours

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Definitions:

Operating Expenses

Costs related to the day-to-day functions of a business that are not directly tied to the production of goods or services, such as rent, utilities, and salaries.

Direct Materials Purchases

The total cost of raw materials bought by a company for use in the production process during a specific period.

Factory Overhead Cost

Costs not directly tied to a specific unit of production or operation, such as maintenance, utilities, and rent.

Zero-Based Budgeting

A budgeting approach where every expense must be justified for each new period, starting from a "zero base."