Wood Preservation
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Questions and Answers

What is a common source of groundwater contamination?

  • Natural soil composition
  • Applying preservatives to soil (correct)
  • Proper disposal of chemicals
  • Rainfall and snowmelt
  • What is the purpose of peeling and seasoning or conditioning green wood before applying preservatives?

  • To reduce the moisture content to zero
  • To make the wood more susceptible to fungi and insects
  • To prepare the wood for chemical preservative treatments (correct)
  • To increase the weight of the wood
  • Why is cleaning up contaminated groundwater difficult and costly?

  • Because of the complexity of the groundwater system
  • No explanation is given in the text (correct)
  • Because it requires specialized equipment
  • Because it's a slow process
  • How is the moisture content of wood usually expressed?

    <p>As a percentage of the weight of the wood after oven-drying</p> Signup and view all the answers

    Why is it necessary to accurately weigh wood before and after drying?

    <p>To calculate the moisture content of the wood</p> Signup and view all the answers

    What happens to recovered solutions in closed chemical and wastewater recovery systems?

    <p>They are filtered to remove solid wastes</p> Signup and view all the answers

    What is the purpose of treating wood with chemical preservatives?

    <p>To extend and supplement the natural preservatives in wood</p> Signup and view all the answers

    What is the purpose of submerging timber or logs in pond water or using a continuous water spray?

    <p>To protect the wood from fungi and insects</p> Signup and view all the answers

    What is the purpose of door sumps under pressure-chamber doors?

    <p>To collect excess chemicals</p> Signup and view all the answers

    What is the primary purpose of seasoning or drying wood?

    <p>To prevent development of stain and decay organisms</p> Signup and view all the answers

    Why is it important to contain runoff in areas where toxic chemicals are used?

    <p>To protect stored logs, poles, or lumber</p> Signup and view all the answers

    Which type of wood has more complex cell organization?

    <p>Deciduous wood</p> Signup and view all the answers

    What is a widely used, effective, and inexpensive method of conditioning wood?

    <p>Air-drying</p> Signup and view all the answers

    What happens to liquid waste materials in the waste management system?

    <p>They are diverted to settling tanks or lined ponds</p> Signup and view all the answers

    Why is green wood from the forest attractive to wood-destroying organisms?

    <p>Because it has a high water content</p> Signup and view all the answers

    What can happen to wood that is treated while it is still wet?

    <p>It develops surface and end cracking</p> Signup and view all the answers

    What is the main reason why wood products in contact with the ground need to be treated with preservatives?

    <p>To ensure a reasonable service life</p> Signup and view all the answers

    What is stored in the cells of growing trees?

    <p>Water, food reserves, and extractives</p> Signup and view all the answers

    What is the purpose of sap stain prevention treatment?

    <p>To prevent growth of sap stain fungi in freshly cut wood</p> Signup and view all the answers

    What is the primary area of concern for decay on utility poles?

    <p>Groundline zone (from 6” above grade to 18” below grade)</p> Signup and view all the answers

    What is the benefit of using rod delivery systems?

    <p>They are easy to install by utility personnel</p> Signup and view all the answers

    What is the purpose of applying preservative pads or bandages?

    <p>To apply preservatives to wood that is nearing the end of its protection time</p> Signup and view all the answers

    What is the main purpose of pole treatments?

    <p>To protect open bolt holes, pole tops, and cross arms</p> Signup and view all the answers

    How many main types of wood preservative pesticides are there?

    <p>3</p> Signup and view all the answers

    Which type of trees is Anobiid Beetle most likely to attack?

    <p>Maple, Beech, Poplar and Pine</p> Signup and view all the answers

    Where do Anobiid infestations usually begin?

    <p>Moist, poorly-ventilated areas</p> Signup and view all the answers

    How can Anobiid infestations spread?

    <p>All of the above</p> Signup and view all the answers

    What is a common result of Anobiid infestations?

    <p>Extensive damage to wood</p> Signup and view all the answers

    Why is Anobiid infestation more likely in certain areas?

    <p>Poor air circulation</p> Signup and view all the answers

    How quickly do Anobiid infestations develop?

    <p>Slowly</p> Signup and view all the answers

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