A Plant Manager Considers the Operational Cost Per Hour of Five

question 75

Multiple Choice

A plant manager considers the operational cost per hour of five machine alternatives.The cost per hour is sensitive to three potential weather conditions: cold, mild, and warm.The following table represents the operations cost per hour for each alternative-state of nature combination: Assume that for a randomly selected day, there is a 30% probability of cold weather, 50% probability of mild weather, and 20% probability of warm weather.What is the EVPI?

• A)$5.8
• B)$6.6
• C)$1.6
• D)$3.2

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Definitions:

Locked-rotor Current

A rephrased definition for Locked-rotor Starting Current: The initial surge of electrical current an electric motor experiences when powered on, but the rotor is stationary, leading to a higher than normal current draw.

Design Code Letter

A letter or set of letters found on an electric motor's nameplate that indicates the motor's locked rotor kVA per horsepower, crucial for understanding start-up power demands.

Shaft Diameters

The measurement across the central part of a shaft, indicating its thickness or width.

Setscrew

A type of screw often used to secure an object within or against another object, typically without the use of a nut.