Earthquake Waves Are Classified as P Waves and S Waves

question 3

Multiple Choice

Earthquake waves are classified as P waves and S waves. Which of the following statements is true about these waves?

• A) The P wave is transverse as is the S wave.
• B) The P wave is longitudinal as is the S wave.
• C) The P wave is transverse and the S wave is longitudinal.
• D) The P wave is longitudinal and the S wave is transverse.
• E) Both the P and S waves are mixtures of longitudinal and transverse waves.

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Definitions:

Labor Efficiency Variance

The gap between the number of hours actually worked and the number of standard hours projected, multiplied by the standard wage rate.

Direct Labor

The expenses associated with salaries for workers directly involved in the creation or production of products.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the expected quantity, based on standards.

Direct Materials

Materials and supplies directly used in the manufacturing of a product and can be directly traced to the finished product.