30 Questions
What is a common source of groundwater contamination?
Applying preservatives to soil
What is the purpose of peeling and seasoning or conditioning green wood before applying preservatives?
To prepare the wood for chemical preservative treatments
Why is cleaning up contaminated groundwater difficult and costly?
No explanation is given in the text
How is the moisture content of wood usually expressed?
As a percentage of the weight of the wood after oven-drying
Why is it necessary to accurately weigh wood before and after drying?
To calculate the moisture content of the wood
What happens to recovered solutions in closed chemical and wastewater recovery systems?
They are filtered to remove solid wastes
What is the purpose of treating wood with chemical preservatives?
To extend and supplement the natural preservatives in wood
What is the purpose of submerging timber or logs in pond water or using a continuous water spray?
To protect the wood from fungi and insects
What is the purpose of door sumps under pressure-chamber doors?
To collect excess chemicals
What is the primary purpose of seasoning or drying wood?
To prevent development of stain and decay organisms
Why is it important to contain runoff in areas where toxic chemicals are used?
To protect stored logs, poles, or lumber
Which type of wood has more complex cell organization?
Deciduous wood
What is a widely used, effective, and inexpensive method of conditioning wood?
Air-drying
What happens to liquid waste materials in the waste management system?
They are diverted to settling tanks or lined ponds
Why is green wood from the forest attractive to wood-destroying organisms?
Because it has a high water content
What can happen to wood that is treated while it is still wet?
It develops surface and end cracking
What is the main reason why wood products in contact with the ground need to be treated with preservatives?
To ensure a reasonable service life
What is stored in the cells of growing trees?
Water, food reserves, and extractives
What is the purpose of sap stain prevention treatment?
To prevent growth of sap stain fungi in freshly cut wood
What is the primary area of concern for decay on utility poles?
Groundline zone (from 6” above grade to 18” below grade)
What is the benefit of using rod delivery systems?
They are easy to install by utility personnel
What is the purpose of applying preservative pads or bandages?
To apply preservatives to wood that is nearing the end of its protection time
What is the main purpose of pole treatments?
To protect open bolt holes, pole tops, and cross arms
How many main types of wood preservative pesticides are there?
3
Which type of trees is Anobiid Beetle most likely to attack?
Maple, Beech, Poplar and Pine
Where do Anobiid infestations usually begin?
Moist, poorly-ventilated areas
How can Anobiid infestations spread?
All of the above
What is a common result of Anobiid infestations?
Extensive damage to wood
Why is Anobiid infestation more likely in certain areas?
Poor air circulation
How quickly do Anobiid infestations develop?
Slowly
This quiz covers the importance of treating wood with chemical preservatives to extend its service life, especially for wood products in contact with the ground or exposed to the weather.
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