Forest Utilization and Engineering

FOREST UTILIZATION AND ENGINERING – N.Y. WEEK 1 ~ Honesty is the Best Policy ~ 1. Resin obtained from Anisoptera thurifera A. balau B. manila copal C. gutta percha D. manila elemi 2. Grooved or notches made in cutting with saw A. sawing variation B. saw kerf C. saw dust D. saw line 3. The property of wood which exhibits different physical and chemical characteristics along it planes A. Hygroscopicity B. anisotropicity C. microscopicity D. isotropicity 4. Plywood that is capable of withstanding prolonged exposure to severe service condition A. interior plywood B. type 1 plywood C. exterior type plywood D. Grade A plywood 5. It is the lengthwise curvature of the narrow surface of the board. A. cup B. crook C. bow D. twist 6. It refers to any irregularity or deviation from the qualities that make the wood suitable for a particular end use A. disease B. defect C. reaction wood D. tension wood 7. Wood with filled resin canals A. bagtikan B. yemane C. mayapis D. almon 8. A kind of decay when both the cellulose and lignin is removed A. Strain B. Dry rot C. White rot D. brown rot 9. Which is the best species for fuel wood production? A. Toog B. Bakauan C. Kakawate D. Molave 10. A classification of lumber which are used for general building and construction purposes A. yard lumber B. joints and planks C. structural lumber D. factory lumber 11. It is used for smoking fish A. api-api B. tangal C. kalantas D. akle 12. Wood saccharification simply means A. Extraction of hydrated tar from bicarbonate extract B. Acid hydrolosis of wood cellulose to produce sugar C. Separation of acid liquid for soluble tar D. Methyl acetone undergoes further distillation 13. An open joint extending through or partially through a panel, which result when side by side core veneers are not tightly buttered together. A. cross break B. core gap C. closed split D. dent 14. An empty cell process which applies air pressure above atmospheric pressure to force air into the wood cells before the impregnation of preservative A. Rueping process B. Arsenate method C. Refusal method D. Full cell process 15. The first strength property of a wood affected by decay A. modulus of elasticity B. impact bending C. electrical conductivity D. toughness 16. A complex phenolic polymers of irregular structures in wood A. hemicellulose B. Carbohydrates C. lignin D. cellulose Other: 17. There are many standard grades of plywood which are determined based on their uses. One of the common use of plywood is for structural and construction and this type of plywood is known as A. Engineered grade B. Appearance grade C. Class grade D. Export grad 18. Load where the force acts over a long period of time is called? A. impact load B. dead load C. rolling load D. static load 19. General term for cup, bow, twist or crook A. collapse B. Brittle C. case hardening D. warp 20. Speed up chemical reaction in the mix A. adhesive B. Extender C. discolored sapwood cutting D. catalyst 21. A process of sawing boards to desired dimension. A. pressing B. Sawing C. trimming D. edging 22. Tension wood in hardwood is usually referred to as A. Custard B. Reaction wood C. Juvenile wood D. Compression wood 23. It is the standard method of treating with all water-borne preservatives A. arsenal method B. rueping method C. refusal method D. full cell process 24. Cold pressing is the subjected to hot press. - before the plywood pane is A. Ply conditioning B. Initial undertaking C. Means for ply stabilizer D. Preparatory for ply fitting 25. What is that living tissue in a tree that is responsible for the transport of soluble mineral nutrient from root and all part of the plant A. Xylem B. Cortex C. Phloem D. Wood cell 26. The benefit of cogeneration as source of electrical energy as far as end users/cogenerators are concerned I. Reduce energy bill II. Additional profit from selling by-products like wood and agro residues III. Increase security of energy supply IV. Conventional energy source will be phased out A. I, II, IV B. I, II, III C. I, IV D. II, III, I 27. Which portion of the wood is more easily penetrated by preservative? A. Heartwood B. Knot C. Bark D. Sapwood 28. Flavin is a dye extract from the inner bark A. Duhat B. Oak C. Tangai D. Kamachili 29. When a veneer is continuously cut by centering the entire bolt in a lathe and rotating it against the log, this type of cutting is A. Saw cutting B. Rotary cutting C. Rift cutting D. Sliced cutting 30. Principal consideration why pine trees are preferred for mine timber. A. It is reservoir B. Long fiber and does not break easily C. It is cheap D. It is light in weight 31. The sour smell of logs submerged in water is an indication of what? A. fungal growth B. insect growth C. bacterial growth D. chemical growth 32. Characterized by a surface tension set in the shell and compression set in the core of a dried lumber A. bow B. Casehardening C. cup D. twist 33. What is the insect that belongs to the order Isopter known to be the most destructive insect to wood which causes significant economic losses? A. Centipede Butterfly Bettle White Ant 34. The term used to indicate the rate flow of gases and liquids in wood A. permeability B. diffusibility C. capillary D. absorption 35. Plain sawed lumber is synonymous to A. edge-grained B. rift-grained lumber C. radial grained D. flat-grained 36. In scientific name Shorea negrosensis, negronesis is the A. Generic name B. Specific epithet C. Binomial name D. Latin name 37. Species that smells like old leather A. dungon B. tindalo C. narra D. pagatpat 38. Consist of making a series of narrow holes or slits in the wood about 1/2 to 3/4 inch deep. This allows preservatives to better penetrate impregnation-resistant wood species and make possible a more uniform penetration to atleast the depth of holes. A. incising B. peeling C. cutting and framing D. conditioning 39. It is also known as bethel process reupping process A. empty cell B. full cell C. sap displacement D. sap replacement 40. The smallest aggregations of cellulose molecules in the plant cell A. elementary fibrils B. amorphous C. crystalline D. microfibrils 41. Cellulose molecules arranged into ordered strands during growth of the tree. A. Wood rays B. Vessel C. Tracheids D. fibrils 42. The moisture content of a piece of wood with green and oven dry weight of 300 and 180 grams respectively A. 0.6% B. 6.66% C. 66.67% D. 66.66% 43. It is used to hold the log or can steadily during sawing A. setworks B. feedwork C. dogs D. Feed rate 44. Common type of fillers except A. wood flour B. coconut shell flour C. cassava flour D. none of these 45. Bubble-like outgrowth of the parenchyma cells adjacent to the vessels are called what? A. pitch B. tyloses C. ash D. resin 46. Chromatedcopper arsenate (CCA) is an example of what? A. water-borne preservative B. oil-borne preservative C. tar oil D. organic solvent 47. A log input of 45 cu.m sawn by a rotary mill have lumber output of 9540 bd.ft. , however, when the same volume of logs was sawn in a band mill, the lumber output is 13,360 bd.ft. What is the difference in the conservation efficiency between the two types of logs? A. 50% B. 25% C. 30% D. 20% 48. The cutting unit system of lumber is used in board feet. What is the required volume in cu. m. of log? A. defect grading B. stress grading C. machine grading D. NHLA rules 49. A treatment which reduce combustibility in wood A. insecticide B. polyethylene glycol C. Fungicide D. fire retardant 50. Analyze the statements. I. Majority of Philippine timbers are diffused porous II. Kalantas exhibits solitary pores. A. Both statements are wrong. B. Statement I is correct and statement II is wrong. C. Statement I is wrong and statement II is correct. D. Both statements are true 51. A reaction wood formed on the upper side of leaning hardwoods. A. compression wood B. heartwood C. Sapwood D. tension wood 52. Measure of stiffness of a beam or column A. modulus of rupture B. modulus of rigidity C. modulus of elasticity D. static bending 54. A highly purified liquid products used in the manufacture of rayon, tire, cord, cellophane, plastic, etc. A. sulfite pulp B. mechanical pulp C. dissolving pulp D. fiber 55. The fiber saturation point of wood is when? A. both cell walls and lumen without water B. both cell walls and lumen saturated with water C. cell walls saturated with water and no water in the lumen D. only cell lumen is saturated with water 56.it is consisted of cellulose and hemicellulose A. pseudo-cellulose B. Lignin C. Holocellulose D. glucose 57. A lumber that has not been dressed A. surfaced lumber B. patterned lumber C. worked lumber D. rough lumber 58. Removing moisture from green wood to improve its serviceability A. curing B. conditioning C. EMC D. seasoning 59. Ratio of calculated or lotted linear error to the measured and recorded perimeter A. error of closure B. Backsight C. Range D. elevation Option 5 60. A crude method of measuring horizontal distance A. transit B. laser C. stadia D. pacing 61. A yellow coloring dye obtained from the rhizomes of Cucumalonga and is grown in Northern Luzon A. logwood B. indigo C. turmeric D. sappan 62. These are living organisms belonging to the Mollusk and Crustaceans which inhabit salt and brackish water and inflict extensive damage on submerged wooden structures or those exposed to low tide. A. beetles B. marine borers C. termites D. fungi 63. A device used in finding areas in maps A. pantograph B. engineer’s scale C. planimeter D. triangle 64. A hardwood species commonly used for matchsticks and chopsticks A. taluto B. yemane C. yakal D. gubas 65. Water in the cells wall materials of wood is called bound water while those in the cell lumina is called A. Moisture content B. free water C. humidity D. water vapor 66. It is an indication of the amount of wood substance contained in each volume of the material. It is the best measure of the strength quality of wood. A. specific gravity B. equilibrium moisture content C. fiber saturation D. density 67. Which of the following families produces softwood species? A. Podocarpaceae B. Verbenaceae C. Leguminosae D. Meliaceae 68. Water in the wood that is associated with the cell wall material, the removal of which below the fiber saturation point cause the cell wall to shrink. A. Free water B. Water vapor C. Bound water D. Moisture meter 69. One of the best natural resins used in varnish and paint manufacture derived from almaciga trees. A. Manila elemi B. Turpentine C. Balau D. Manila copal 70. A defect characterized by irregular and abnormal shrinkage, which occurs above the fiber saturation point. It’s due to buckling and crushing of the cell walls. A. warping B. heartcheck C. Butt rot D. collapse 71. Lumber that has been surfaced by a planing machine for A. patterned lumber B. matched lumber C. dressed lumber D. worked lumber 72. One of the premium hardwood species commonly used in furniture and paneling for export. A. Shorea squamata B. Albizzia falcataria C. Pinus insularis D. Pterocarpus indicus 73. The observed dimensional changes in wood are unequal along the three structural directions. This phenomenon is an indication that wood is. A. anisotropic B. microscopic C. Hygroscopic D. isotropic 74. The central portion of a log left in the process of producing veneer sheets with the use of rotary lathe. A. log ends B. log core C. core board D. brash center 75. When a log scale exceeds the lumber output, it is said to Be A. mill tally B. over run C. under run D. 100% utilization 76. It consists of cells which serve as storage and conduction of food materials; these cells contain living protoplasm while they are in the sapwood, but lose their protoplasm A. resin canals B. wood parenchyma C. vessels D. wood rays 77. A yarding technique which is considered more destructive compared to truck logging or tractor logging. A. siwash B. high lead C. hauling D. skidding 78. The term used to describe any distortion from the true plane that may occur in a piece of wood during seasoning. A. brash center B. casehardening C. warping D. collapse 79. Principal chemical constituent of the cell walls; complex carbohydrate occurring in the form of polymer chains. A. holocellulose B. alpha cellulose C. cellulose D. lignin 80. A machine which converts sawmill wastes not otherwise used, such as slabs, edgings, trimmings, defective boards and miscuts into small roughly sized pieced to be used for fuel. A. feed work B. wood hog C. resaw D. ripper 81. A special type of map which shows, by the use of suitable symbols, the configuration of the earth’s surface called relief, other natural features such as trees and streams and the physical changes brought upon the earth’s surface by the works of man, such as houses, roads, etc. A. topographic map B. hydrograhic map C. geographic map D. land-use map 82. The abnormal wood produced in the upper side of leaning stems of hardwood. A. unsound wood B. compression wood C. tension wood D. bump 83. What is the moisture content of a piece of wood if the green weight is 200 grams and the ovendry weight is 160 grams? A. 50% B. 15% C. 25% D. 40 84. It is a term used to indicate the rate of flow of gases and fluids in wood. A. swelling B. absorption C. fluidity D. permeability 85. A non-elastic rubber derived from the latex of several members of the genus Palaquium. A. Manila copal B. Manila elemi C. Gutta percha D. balau 86. Lumber cut so that the wide face of the board is principally radial is called: A. flat sawn B. plan sawn C. dressed lumber D. quarter sawn 87. It is defined as the amount of deviation from a straight line drawn from end to end of the log, over and above the amount of taper. It is a gradual curve extending to the whole length of the log. A. ring shake B. center rot C. sweep D. crook 88. The volume of log input needed to sustain the operation of a wood processing plant at attainable capacity for a period of one (1) year. A. annual log requirement B. annual growth C. log production D. allowable cut 89. On the other hand, lumber cut so that the wide face of the board is tangential is said to be A. edge-grained B. tongued and grooved C. plain sawn D. quarter sawn 90. Skidding or forwarding to move the log from stumps area to roadside is the commonly used method where grades do not exceed: A. 100% B. 60% C. 80% D. 70% 91. Bark or the lack of wood from any cause on the edge or corner of a piece of lumber. A. wane B. miscut C. cat-face D. slab 92. A theoretical state of which all the free water has evaporated leaving only the bound water in the cell wall. A. shrinkage B. equilibrium moisture content C. relative humidity D. fiber saturation point 93. An abnormal type of wood generally found in leaning stems and branches of softwoods and hardwoods. A. canker B. reaction wood C. knot D. burl 94. The extractable material in certain plants having the ability to convert hide into leather. A. lignin B. gum resin C. exudates D. tannin 95. Which of the following species produces the hardest and heaviest wood? A. Vitex parviflora B. Ceiba Pentandra C. Sterculia cermanica D. Xanthostemon verdugonianus 96. Wood shrinks and swells as a result of the change in moisture content below fiber saturation point. It has been shown that for each percent decrease in moisture content from FSP wood shrinks about: A. 1/2 of the total possible shrinkage B. 1/25 of the total possible shrinkage C. 1/30 of the total possible shrinkage D. 1/5 of the total possible shrinkage 97. Consists of boards bonded together, either in straight or curved form with their grain directions parallel to each other. A. plywood B. laminated wood C. chipboard D. particle board 98. The outer portion of a woody stem distinguished from the inner wood by its lighter color. A. softwood B. core wood C. sapwood D. heartwood 99. The scientific name of the now common balimbing wood species is: A. Spondias purpurea B. Averrhoa bilimbi C. Averrhoa carambola D. Averrhoa quadrialata 100. In primary log transport the one responsible for unhooking the turns as they are in and for preparing a safe log deck. A. chaser B. yarder engineer C. choker setter D. rigging slinger ~ In God’s Grace, we will all pass the PFLE 2025! Fighting, Future Foresters! ~ ANSWER KEY 1. A 2. B 3. B 4. C 5. B 6. B 7. A 8. C 9. B 10. A 11. A 12. B 13. B 14. A 15. D 16. C 17. A 18. B 19. D 20. D 21. C 22. B 23. D 24. A 25. A 26. B 27. D 28. B 29. B 30. B 31. C 32. B 33. D 34. A 35. D 36. B 37. A 38. A 39. B 40. A 41. D 42. C 43. A 44. C 45. B 46. A 47. D 48. D 49. D 50. B 51. D 52. C 53. 54. C 55. C 56. C 57. D 58. D 59. A 60. D 61. C 62. B 63. C 64. D 65. B 66. A 67. A 68. C 69. D 70. D 71. C 72. D 73. A 74. B 75. C 76. B 77. B 78. C 79. C 80. B 81. A 82. C 83. C 84. D 85. C 86. D 87. C 88. A 89. C 90. B 91. A 92. D 93. B 94. D 95. D 96. D 97. B 98. C 99. C 100. A