A Wire of Circular Cross Section of Diameter D and Length

question 54

Multiple Choice

A wire of circular cross section of diameter d and length L is stretched an amount $\Delta$ L by a steady force F.An equal force would produce how much stretch in a similar wire of diameter 2d and length 2L?

• A)\(\Delta\)L/8
• B)\(\Delta\)L/4
• C)\(\Delta\)L/2
• D)2\(\Delta\)L
• E)4\(\Delta\)L

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Definitions:

Materials Price Variance

The difference between the actual cost of materials and the standard cost, indicating how much was saved or overspent on materials.

Direct Material Used

Direct material used refers to the raw materials that are directly incorporated into a product being manufactured.

Materials Purchased

The total cost of raw materials bought for use in the production process.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the quantity expected, multiplied by the standard cost per unit.