Shown Here Is a Device That Can Be Used to Turn

question 49

Multiple Choice

Shown here is a device that can be used to turn a furnace on or off, depending on the temperature sensed by the device.
-In the figure,the principle underlying the operation of this device is that

• A)different metals have different latent heats.
• B)different metals have different thermal conductivities.
• C)different metals have different thermal expansion coefficients.
• D)heat always flows from hot to cold,never from cold to hot.
• E)different metals have different heat capacities.

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Definitions:

Factory Equipment

Fixed assets that are used in the production process to manufacture goods and services.

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The process of evaluating a product or system to ensure it meets safety standards and regulations and does not pose a hazard to users.

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An incentive offered by sellers to encourage prompt payment, typically a percentage reduction from the invoice price if paid within a specified period.

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A large, thick, flat piece of concrete, used as a base for construction projects such as floors, roads, or foundations.