Under Steady State Conditions, a Piece of Wood 350 Mm

question 55

Multiple Choice

Under steady state conditions, a piece of wood 350 mm by 350 mm and 15 mm thick conducts heat through its thickness and loses no appreciable heat through its well-insulated sides. The rate of heat flow is measured to be 14.0 W when the temperature difference across its thickness is 28 C°. Determine the thermal conductivity of this wood.

• A) 9.2 × 10^-4 W/(m∙C°)
• B) 270 W/(m∙C°)
• C) 16 W/(m∙C°)
• D) 0.061 W/(m∙C°)
• E) 33 W/(m∙C°)

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Definitions:

Nominal

A type of data that represents categories without any intrinsic order or ranking among them.

Level Of Measurement

Refers to the different ways in which variables or data points can be quantitatively and qualitatively categorized.

Frequency Distribution

An overview or tabulation of a dataset that shows the number of individuals or occurrences in each non-overlapping category or class range.

Sample

A subset of individuals or observations selected from a population for the purpose of analysis.