3/4 ´ 1/5 = __________.
Fill in the blank(s) with the appropriate word(s).
3/20
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Type ____ construction uses fire retardant-treated wood framing within exterior wall assemblies with a two-hour rating or less.
A. II B. III C. IV D. V
Para realizar una elevación, la acción de palanca de la grúa debe ser mayor que _____.
a. la distancia vertical desde el centro de gravedad multiplicado por el promedio de la carga b. el peso de la grúa multiplicado por la distancia horizontal desde el centro de gravedad hasta el eje basculante c. la capacidad bruta de la grúa d. acción de palanca de la grúa
These metals contain iron, such as iron and steel.
a. ferrous b. nonferrous c. alloys d. inorganic
Answer the following statement(s) true (T) or false (F)
1. Composites are created by combing two or more solid materials to make a new material that has properties that are superior to those of the individual components. 2. Composite materials consist of two main ingredients: matrix material and fibers. 3. The term fluids refers to liquids, not gases. 4. Air and water are among the most abundant fluids on earth. 5. Air is a mixture of mostly oxygen, and small amounts of other gases.