Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Question
Chapter 10, Problem 10.30QP
To determine
Write the four conditions that cause wood decay and occurrence of insects, and how the preservative eliminates wood decay.
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Question 13
Which one of the following statements regarding durability is FALSE?
O a. Use class 5 includes the most challenging service condition for wood.
O b. Biological deterioration includes attack by bacteria, fungi, insects, or moulds.
O c.
Natural durability class 1 has the lowest durability.
Od. The highest risk for wood decay is in wet and warm conditions.
Question 34
Which one of these anatomical features of wood cells DOES NOT reduce wood permeability?
a. Inter-vessel pits
O b. Pit aspiration
C. Resin pockets
O d. Tyloses
A. Differentiate the types of seasoning of lumber.
1. Methods of Seasoning of Lumber
2. Artificial Seasoning of Lumber
B. Give at least 5 common causes of wood decay.
C. Types of Preserving Wood Process
Chapter 10 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 10 - What are the two main classes of wood? What is the...Ch. 10 - Prob. 10.2QPCh. 10 - Prob. 10.3QPCh. 10 - Discuss the anisotropic nature of wood. How does...Ch. 10 - Prob. 10.5QPCh. 10 - Prob. 10.6QPCh. 10 - Prob. 10.7QPCh. 10 - Prob. 10.8QPCh. 10 - Prob. 10.9QPCh. 10 - Prob. 10.10QP
Ch. 10 - Prob. 10.11QPCh. 10 - Prob. 10.12QPCh. 10 - Prob. 10.13QPCh. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Prob. 10.16QPCh. 10 - Prob. 10.17QPCh. 10 - Prob. 10.18QPCh. 10 - Prob. 10.19QPCh. 10 - Prob. 10.20QPCh. 10 - Prob. 10.21QPCh. 10 - Prob. 10.22QPCh. 10 - Prob. 10.23QPCh. 10 - A wood specimen was prepared with actual...Ch. 10 - A pine wood specimen was prepared with actual...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.29QPCh. 10 - Prob. 10.30QPCh. 10 - Prob. 10.31QPCh. 10 - Prob. 10.32QPCh. 10 - Prob. 10.33QP
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- Question 8 Mechanical properties of timber are generally NOT dependent on: O a. wood moisture content O b. extractives O c. wood density O d. duration of load O e. temperaturearrow_forwardThe moisture content of wood test was performed according to ASTM D4442procedure and produced the following data:Weight of specimen in the green condition = 317.5 gWeight of oven-dry specimen = 203.9 gCalculate the moisture content of the given wood.arrow_forwardCompute the modulus of elasticity of the wood species whose stress–strainrelationship is shown in Figure 10.12, using both the SI and English units.Compare the results with the typical values shown in Table 1.1 in Chapter 1and comment about the results.arrow_forward
- Question 19 What fungus only cause a disfiguring of wood and not a loss in mechanical properties? O a. Staining fungi O b. Soft rot fungi О с. Brown rot fungi O d. White rot fungiarrow_forwardCollect a variety of samples of wood species used in construction and conduct various tests, such as:- Tension and compression tests.arrow_forwardA piece of lumber dries in service from 50 percent moisture content to 10 percent. What is the expected shrinkage?arrow_forward
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