A Square Hole,30 Cm on Each Edge,is Cut in the Center

question 21

Multiple Choice

A square hole,30 cm on each edge,is cut in the center of a square aluminum plate 1 m on a side.The coefficient of linear expansion of aluminum is 2.4 $\times$ 10^-5/Cº.If the plate is heated 25 ºC above the starting temperature,the area of the hole

• A)increases by 1.1 cm².
• B)increases by 0.54 cm².
• C)increases by 0.00060 cm².
• D)decreases by 0.54 cm².
• E)decreases by 0.00060 cm².

---

Definitions:

Actual Capital Markets

Real-world financial markets where savings and investments are transferred between suppliers who have capital and those who are in need of capital.

Statistical Measure

A quantitative representation that describes a characteristic of a data set or population, such as mean or standard deviation.

Pop-off Valve

A safety device designed to release excess pressure from a system, such as an air tank or steam boiler, to prevent over-pressurization and potential damage.

Governor Cut-out Pressure

The maximum pressure at which an air compressor governor stops the compressor from pumping air into the air storage tanks, typically in air brake systems.