KELADI SHIVAPPA NAYAKA UNIVERSITY OF AGRICULTURAL AND HORTICULTURAL, SCIENCES, SHIVAMOGGA FINAL EXTERNAL EXAMINATION Ill B. Sc. (HONS.) FORESTRY II - SEMESTER 2021-22 FPU 302 (2+1)- WOOD PRODUCTS AND UTILIZATION Date: 06-07-2022 Time: 2hours Marks: 50 1A. CHOOSE THE APPROPRIATE ANSWER (0.5 x 25=12.5) c. Squares 2. The first match factory in India was set up in - . Jaipur "aw fest Bengal. Bangaluru d. Ahmedabad conversion of carbohydrate polymers in wood to simple sugars by chemical reaction is called a: ‘@. Wood oxidation b. Wood distillation . Wood hydrolysis d. Wood saccharification 4. Hub of Indian Plywood industries is ~ - muna Nagar, Haryana b. Chennai, Tamil Nadu - Ranchi, Jharkhand d. Ludhiana, Punjab entific name of red cedar is ~ - ‘@. Cedrus deodara b. Pinus Koraiensis wes Juniper Virginiana d. Aesculus indica x 6. Physical characteristics of paper mainly depends on ue a. Cooking Beating c. Sizing d. Bleaching 7. The maximum length of finger jointed lumber is between -~ a. 5-6 meter b. 13-15 meters 266-8 meters d. 12-14 meters 8. is the common weaving pattern used in Bamboo mat weaving ‘a. Herring bone weaving _b. Leno weaving c. Rib weaving _d. Twilll weaving 9. and --------- states are the home of sports good industry a. Punjab and Himachal Pradesh V8 Punjab and Kashmir Ye ¢. Tamil Nadu and Kerala d. Haryana and Punjab b. Juniper virginiana d. Calocedrus decurrens -------- is used to give roughness to the head in match stick production 9 iG b. Gum powder c. Carbon black Glass powder an ideal material for on construction 4 5 cc. PVC d. Concrete oftcine structure is called as the performance of wood by modifying its Toa fa. Seasoned wood —_b. Sacarification of wood ‘wood used for wood acetylation is --~----—-— . ‘Carbon disulphide {& Acétic anhydride _¢. Sulphuric acid d. Methyl hydroxide intelligent choice of timber for specific purposes is termed as————-—~ Grading ». Conversion ¢. Seasoning 4. Classification 16. The Machine used for planning wood to a specific consistent thickness is called as ~~~ ‘&. Mortiser b. Surface planer ¢. Spindle moulder d. Router Plywood production, grain of each veneer is arranged at @& Right angle d. None of these — b. Laminated Vendura Lumber a. Ethylene-vinyl acetate Urea Formaldehyde . Ethylene-propylene ‘an introduction of chemical substances into wood in order to improve its yracteristics and impart new properties rtmpregnated wood b. Preservated wood c. Seasoned wood d. Heat stabilized wood 21. New generation of wood material is . Impregnated wood b. Thermo-treated wood . Compregnated wood € Seasoned wood 22. The by-product of acetylation process is ~ ® Acetic acid b. Sulfuric acid c. Carbonic acid d. Methonal 23. The Nano-scale is the size range from approximately between @.50nmto140nm b.100nmto200nm §=@'inm to 100nm 4.1nm to 200nm 24. In rayon manufacturing process, chemical used for steeping process is ------ a. Carbon disulphide @ Aqueous caustic solution — a m ‘c. Sodium sulphate d. Aqueous sodium hydroxide **" Carbohydrates in wood can be converted into simple sugars by chemical treatment and fermented to yield alcohol is called as - ification of wood b. Destructive distillation of wood c. Biomass gasification d. Biochar production 1B STATE TRUE OR FALSE, (15 x 0.50=7.50) +26. Anogeissus latifolia is suitable for making gymnastic rings. 27. Chlorine dioxide is used for single bleaching process in paper production +28. Wood produced from Furfurylation is Kebony. o 29. Axe is a tool consisting of a tough blade, wire, or chain with a hard toothed edge. ©Fibre boards are used as core material for core boards and sandwich boards. 31. Most commonly used plywood size is 4 ft by 8 ft. 32. Melamine formaldehyde is used for Hot press in Plywood production: 33, Wavy grain supporting system is mainly used inside of the Hollow core flush 34, Built up product made of wood layers is Laminae.+ 35. In Sandwich board production, two thin facings are called as facings. _ 36. Drawback of MDF is denser than plywood 37, The colour of Thermo treated wood is green. . 38. Furfuryl alcohol is a liquid produced from sugar cane 39. The laboratory's first gift to the loom is silic.. 40. The modification of Scholler process is called as Madison sugar process 1 MATCH THE FOLLOWING (0.5x10=5) A B 41. Swan timber 0 A. Kokuyo Camlin’s 42. High-density fibre board"(HDP}y\ B. Kebony 43. Plywood species C. Syngas 44. Poor Man's Timber D. Blocks 45. Pencil E. Dipterocarpus macrocarpus *> 46. Purfurylation% F. Bamboo “4 47. Medium-density fibre board (MDF\S —_G. Kirchoff 48. Nanoslica <) H. Density > 0.8 g/em? A> I99, Pliownes gasification (/ 1 |. Mechanical properties of wood 50. Sugar extracted starch © J. Urea Formaldehyde_ vile). w ” ‘Part -B Descriptive type Questions 1 ANSWER OF THE FOLLOWING _[Sxd=10) 51, Write the influence of globalization in wood based industries ? What are the suitable wood characters for pencil making ? ( 4 Write short notes on pulp bleaching. y ~<) ‘Short notes on properties of Adhesives. vA ¥ 7 ¥ , @ = ri % the advantages and disadvantages of Vicose rayon ? Lo 2 . phan =Ill, ANSWER ANY THREE OF THE FOLLOWING (3 x 5=15) 58. What is composite wood ? Explain in detail about different types of composite wood. 59. Explain the various steps involved in pulp and paper manufacturing process. 60. Define Destructive distillation of wood and explain its different stages. Enlist different wood distillation products along with uses, 61. Explain in detail about the various Nanotechnology applications in wood. 62. Explain the supply and demand status of wood in India, their export and import details. XK dot es 400‘TURAL AND : Gres KELADI SHIVAPPA NAYAKA UNIVERSITY OF AGRICUL’ Za HORTICULTURAL SCIENCES, SHIVAMOGGA = > FINAL EXTERNAL EXAMINATION 5 - SEMESTER 2022-2: IIIB, Sc. (HONS.) FORESTRY, It - SEM! FPU soap} “WOOD PRODUCTS AND UTILIZATION COLLEGE CODE - | COFP : 0 ID NO: %3 Date: 30-10-2023 ‘Time: 2 hour Marks: PART - A; OBJECTIVE TYPE QUESTIONS 1A. CHOOSE THE APPROPRIATE ANSWER (0.5x25=12.5) 1. The rate of growth of the paper industry is around ____ percent per annum A 5% B. 10% C. 15% D. 20% 2. Viscose rayon is derived from A.Hemicellulose —_B, Pectin C. Lignin _D. Cellulose 3. A long, narrow pointed structure with thick walls and small cavities which provide rigidity to the plant = A. Cell wall B. Microfibrils. C. Companion cells . D. Fibres 4. Built-up boards having a core of light material faced on both sides with a relatively thin layer of material having high strength properties A. Core board B. Lamin Board, C. Sandwich board —_D. Block board 5. Process by which carbohydrates in wood can be converted into simple sugars by chemical treatment Seasoning =| B. Saccharification C. Mechanical process D. Alkaline process for pulp and paper making does not include sp —_B. Dendrocalamus sp. C. Catechin D. Phyllostachys sp. banded construction of wood is called as ted wood B. Sandwich board C. Particle board + D. Plywood> D. Charcoal $0. D. CaSO) board — D. Laminboard D. Cutting A. Adhesives D. Fibres: 22. The minimum number of plies for plywood s a2 ~B3 C4 DS 2G. The centre face of plywood is known as A Face B. Gullet D. Pith 24, Urea formaldehyde is an example of A. Thermopiastic B. Weather Proof 1D, Contact 7 25. Institute of Wood Science and Technology is located 3 | A Delhi B. Chennai ©. Kochi _D, Bangalore (15x0.50°7.50) ‘TRUE OR FALSE js designed to have a long-life span. ~(0.5x10=5) 46. Destructive distillation 47. Unsized paper 48. . Stayb wood 49. Bast fibres 30. Copper ammonium rayon J. 250°C - 3509C PART -B: DESCRIPTIVE TYPE QUESTIONS Ml ANSWER ANY FIVE OF THE FOLLOWING {5x2=10) 51. Alkaline process of pulping. 32 {What is saccharifcation of wood ? Explain.