In a Two-Component Alloy, the More Abundant Metal Can Be

question 17

Multiple Choice

In a two-component alloy, the more abundant metal can be thought of as the solvent while the less abundant metal can be thought of as the solute.Which of the following is an explanation of why an alloy is often harder than either of the pure elements?
I.In a homogenous substitutional alloy, the solute atoms slightly distort the crystal structure, making it hard for atoms to slip past one another.
II.In a heterogeneous alloy, small regions rich in the solute atom can disrupt the crystal lattice, making it hard for atoms to slip past one another.
III.When solute atoms occupy interstitial sites, they can prevent the atoms in the crystal structure from slipping past one another.

• A)only I
• B)only II
• C)only III
• D)I or II
• E)I, II, or III

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Definitions:

Budget Variance

The difference between budgeted amounts and actual amounts for revenues, expenses, or other financial metrics.

April

The month that comes fourth in the year according to the Gregorian calendar system.

Predetermined Overhead Rate

A rate used to apply manufacturing overhead costs to products, calculated before the production period based on estimated costs and activity levels.

Variable Overhead

Costs that fluctuate with the level of production activity, such as utilities or raw materials.