by Sunday | Oct 5 | NABTEB QUESTIONS
(i) pigment and (ii) vehicles (i) Pigment are used in opaque finishes such as paints, enamels and fillers (ii) Vehicles are used to bind together and carry the pigments in paints enamels etc and are used as film-forming materials in clear...
by Sunday | Oct 5 | NABTEB QUESTIONS
(i) Knots: Occur when a branch or limb is cut through during the process of conversion, knots reduce the strength of the timber owing to the short or gross grain which surrounds them. Types of knots include line or sound knot, loose or dead knot and spray knot. (ii)...
by Sunday | Oct 5 | NABTEB QUESTIONS
Natural method of air season: This is the method whereby the timber is stacked in the open air, where it is dried by the prevailing weather conditions, the temperature, the humidity of the air, and the speed of air circulation govern the rate of drying. The stack is...
by Sunday | Oct 5 | NABTEB QUESTIONS
The Advantages of seasoning timber include:- i. Further shrinkage, checking and distortion are reduced to minimum ii. Conditions are less favourable for decay, mould, strain and some insect attack. iii. The timber is higher in weight, more economical to transport, and...
by Sunday | Oct 5 | NABTEB QUESTIONS
Seasoning is the drying out of most of the moisture from the wood, so that the timber is conditioned before use.
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