Chapter 3 Review Questions

Construction materials include

• mortar, concrete, and masonry units
• composition panels, engineered lumber, and sawed lumber
• steel and aluminum, vapor barriers, and gypsum board
• All of the above.

True or False? Dimension lumber is used primarily for posts, beams, and heavy stringers.

• True
• False

The natural cement that holds wood cells together is called

(a)  

Which of the following kinds of wood are classified as hardwoods?

• Hemlock
• Redwood
• Willow
• Spruce

When a softwood log is cut so the annular rings form an angle greater than 45° with the surface of the boards, the lumber is called

(a)  

What is the moisture content of a board if a test sample that originally weighed 11.5 oz. was found to weigh 10 oz. after oven drying?

(a)  

The fiber saturation point is about M.C. for nearly all kinds of wood.

(a)  

The letters E.M.C. are an abbreviation for the term (a)   moisture content.

The best grade of "selects" softwood lumber is (a)   .

The best available grade of hardwood lumber is (a)   .