Wood Preservation

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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?

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

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

To calculate the moisture content of the wood Signup and view all the answers

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

They are filtered to remove solid wastes Signup and view all the answers

What is the purpose of treating wood with chemical preservatives?

To extend and supplement the natural preservatives in wood Signup and view all the answers

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 Signup and view all the answers

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

To collect excess chemicals Signup and view all the answers

What is the primary purpose of seasoning or drying wood?

To prevent development of stain and decay organisms Signup and view all the answers

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

To protect stored logs, poles, or lumber Signup and view all the answers

Which type of wood has more complex cell organization?

Deciduous wood Signup and view all the answers

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

Air-drying Signup and view all the answers

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

They are diverted to settling tanks or lined ponds Signup and view all the answers

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

Because it has a high water content Signup and view all the answers

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

It develops surface and end cracking 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?

To ensure a reasonable service life Signup and view all the answers

What is stored in the cells of growing trees?

Water, food reserves, and extractives Signup and view all the answers

What is the purpose of sap stain prevention treatment?

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

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

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

What is the benefit of using rod delivery systems?

They are easy to install by utility personnel Signup and view all the answers

What is the purpose of applying preservative pads or bandages?

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

What is the main purpose of pole treatments?

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

How many main types of wood preservative pesticides are there?

3 Signup and view all the answers

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

Maple, Beech, Poplar and Pine Signup and view all the answers

Where do Anobiid infestations usually begin?

Moist, poorly-ventilated areas Signup and view all the answers

How can Anobiid infestations spread?

All of the above Signup and view all the answers

What is a common result of Anobiid infestations?

Extensive damage to wood Signup and view all the answers

Why is Anobiid infestation more likely in certain areas?

Poor air circulation Signup and view all the answers

How quickly do Anobiid infestations develop?

Slowly Signup and view all the answers