What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 10, Problem 10.1QP

What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:43

Students have asked these similar questions

A standard steel pipe (D = 3.500 in.; d = 3.068 in.) supports a concentrated load of P = 630 lb as shown. The span length of the cantilever beam is L = 4 ft. Determine the magnitude of the maximum horizontal shear stress in the pipe. 720 psi 761 psi 508 psi 564 psi 667 psi L Pipe cross section.

A beam is subjected to equal bending moments of M₂ = 59 kip-ft. The cross-sectional dimensions are b₁ = 7.5 in., d₁ = 1.4 in., b₂ = 0.55 in., d₂ = 5.0 in., b3 = 3.2 in., and d3 = 1.5 in. Determine: (a) the centroid location (measured with respect to the bottom of the cross-section), the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. Tensile stress is positive, while compressive stress is negative. (c) the bending stress at point K. Tensile stress is positive, while compressive stress is negative. (d) the maximum bending stress produced in the cross section. Tensile stress is positive, while compressive stress is negative. M₂ Z M₂ Answer: (a) y= i Iz= in. in.4 S= i on,3 (b) σH= i ksi (c) OK = i ksi (d) σmax= ksi K b₁ d₁ H b₂ b3 d₂ d3

A cantilever timber beam with a span of L = 2.9 m supports a uniformly distributed load w. The beam width is b = 300 mm and the beam height is h = 160 mm. The allowable bending stress of the wood is 7 MPa. Determine the magnitude of the maximum load w that may be carried by the beam. Answer: w= I i kN/m.

Answer 2

Textbook Question

Chapter 10, Problem 10.1QP

What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:43

Answer 3

Textbook Question

Chapter 10, Problem 10.1QP

What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:43

Answer 4

Textbook Question

Chapter 10, Problem 10.1QP

What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:43

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Answer 8

Expert Solution & Answer

To determine

The main classes of wood, use of each class, and the tree species of each class.

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

The main classes of wood, use of each class, and the tree species of each class.

Answer 12

Explanation of Solution

Class of wood:

Wood is one of the best civil engineering material. Availability of this material is easy, and it is very economical in cost. At the same time, it is durable and easy to use. Based on the type of growth, it can be divided into two types. They are as follows:

Endogenous type-It grows inward in longitudinal fibrous mass. In United States, the woods from endogenous type are not utilized for construction.
Exogenous type-It grows outward across the horizontal section.

Uses:

Exogenous tresses are only fit for engineering construction.
The stem of endogenous tress is light; therefore, it has very limited engineering application. It can be utilized for ornamental works.

Trees species of each class:

Bamboo, hemp, and cane come under endogenous type.
Oak, pine, fir, and maple are the species of exogenous type.

Answer 13

Ch. 10 - What are the two main classes of wood? What is the...Ch. 10 - Prob. 10.2QP Ch. 10 - Prob. 10.3QP Ch. 10 - Discuss the anisotropic nature of wood. How does...Ch. 10 - Prob. 10.5QP Ch. 10 - Prob. 10.6QP Ch. 10 - Prob. 10.7QP Ch. 10 - Prob. 10.8QP Ch. 10 - Prob. 10.9QP Ch. 10 - Prob. 10.10QP

What are the two main classes of wood? What is the main use of each class? State the names of two tree species of each class.

Explanation of Solution

Want to see more full solutions like this?

Chapter 10 Solutions

Additional Engineering Textbook Solutions