If the Mean Time Between In-Flight Aircraft Engine Shutdowns Is

question 95

Multiple Choice

If the mean time between in-flight aircraft engine shutdowns is 12,500 operating hours, the 90^th percentile of waiting times to the next shutdown will be:

• A)20,180 hours.
• B)28,782 hours.
• C)23,733 hours.
• D)18,724 hours.

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Definitions:

Instrumentation

The science and practice of measurement and control of process variables within a production, laboratory, or manufacturing area.

Pushbutton Interlocking

A control system feature that prevents the actuation of a device until certain conditions are met, often using pushbuttons for initiation.

Electrical Interlocking Circuit

A safety mechanism in electrical engineering designed to prevent dangerous combinations of actions by controlling the sequence of operations.

Pilot Light

An indicator light used on control panels or equipment to indicate operational status or to highlight warnings to the operator.