Certificate In Coir Based Industry /30 0 Your Examination is Complete ! Certificate In Coir Based IndustryOnline Examination Detail: Duration- 60 minutes. Number of Questions- 30. (Multiple Choice Questions). Maximum Marks- 100, Passing Marks- 40%. There is no negative marking. Candidate Details NameEmailPhone Number 1 / 301. From coir the finest grade fibre is obtained from husk retted in water ? A. tidal creates water moves slowly with rising and falling tide B. tidal creats water moves rapidly with rising and falling tide C. lagoons D. soaking pits (trenches periods) 2 / 302. Bristie fibers of coir are A. long fibres (about 20cm. long ) calles coco- fibres in case coir fibres B. short fibres (about 10cm. long ) alles coco- fibres in case coir fibres C. mattressed (about 30cm. long ) alles coco- fibres in case coir fibres D. upholstery(about 40cm. long ) alles coco-fibres in case coir fibres 3 / 303. Macimum coir producing state in india is A. T.N B. orissa C. kerala D. karnataka 4 / 304. Biggest importer of coconut is A. USA B. china C. india D. pakistan 5 / 305. Retting of coir fibres depends on A. temperature B. type of water salinity of water C. type of product to be manufactured D. all of the above 6 / 306. In which of the following fibre used in the manufacturing of sail craft? A. cottom fibres B. jute fibres C. sunn-hemp fibres D. coir fibres 7 / 307. In which of the following plant fibres shows sound insulating quality? A. coir B. jute C. sunn-hemp D. cotton 8 / 308. What is true about the coir fibres? A. india is principal producer and exporter of coir products ,followed by sri lanka B. almost all comes from kerala because extensive back water.streams and lagoons provide good conditions for retting husk C. india is chief exporter of coir yarn/coir mats and matting D. all of the above 9 / 309. India ranks .....in copra production A. first B. second C. third D. fourth 10 / 3010. zin which of the folowing is not true about the harvesting of coir (surface fibres)? A. early harvesting yields weak fibres B. delay picking results in dark brown fibres C. hard fibres used in upholstery work and brush making D. fibers obtained from delay picking are soft easy to twist 11 / 3011. In which of the of the following is not a characteristic of commercial coir fibre? A. it obtained fibrous husk (mesocarp) of fruits B. it confined to deltaic regions of tropical and subtropical countries C. it produce highly rough-surfaced fibres than any other vegetable fibres D. all of the abouve 12 / 3012. coco peat is A. by products of coir industry B. by product of sunn - hemp industry C. by procuxt of jute industry D. by product of cotton industry 13 / 3013. Stegmata ,small lens shapad sllicified structure are found on surface of which fibres? A. cotton B. sunn-hemp C. jute D. coir 14 / 3014. In which of thwe following is not a characteristic or commercial coir fibre? A. lightness B. elasticity C. high resistance to mechanical shock D. more durable and more rough 15 / 3015. In which of the following is true statement about coir fibers? A. coir and coir goods earn a considerable amount of foreign exchange B. production of fibers yarn and ropes is essentially a cottage industry C. sri lanka is largest exporter of bristle and mattress fibers D. all of the above 16 / 3016. True statements is/are A. Steel combs is used to cleaned and hackled the husks to separate the stiff fibres B. hand processing is belived to produce a superior grade fiber C. mattress fibers are short fiber removed time to time during processing D. all of thr above 17 / 3017. In which of following is not true about coir fiber processing ? A. a skilled workes can de husk as many as 200 nuts a day B. husk is subjected to retting to remove tough interstitial substance closely adhering to fibrous mass C. retting operations is done aftersubmerging the husk is lagoons ' D. finest quality fiber obtained from husk retted in slow moving tidal creeks 18 / 3018. What is true about retting process time period ? A. manufacturing of coir yarm time taken us 8-9 months in india B. manufacturing of bristles and matterss time is just 14 days (2weeks)in sri lanka C. in factoried ,retting time reduced by pre soaking tthe husk for 30 to 40 hr in hot water D. all of the above 19 / 3019. Ramming is an approach of fibres extraction/processing practied in case of which  fiber crop? A. coir B. sunn-hemp C. cotton D. jute 20 / 3020. In which od the following plamt fibres used in the marine cordage? A. jute B. cotton C. sunn-hemp. D. coir 21 / 3021. Best quality coir fibers obtained from fruits which are havested at stage? A. green fruits B. mature fruits C. brown fruits D. none of the above 22 / 3022. In which of the following is true about the coir fibre? A. belting for industry B. source of furfural and tannins C. absorbent for nitro -glycerine in making exolosive and as peper pulp D. all of the above 23 / 3023. In coir pocessing fruits are de husked by ? A. ramming against a sharp iron spike B. splitting the husks into 3 to 4 pieces by bursting machines splitting the husks into 3 to 4 pieces by bursting machines C. both D. none 24 / 3024. In which of the following plant fibres used in the nautical items ? A. jute B. cotton C. suun-hemp D. coir 25 / 3025. After retting husk beaten with wody mallets to knock out the A. pith and other extraneous materials B. xylem C. phloem D. all of the above 26 / 3026. In which of the following is an application of the coir fibers? A. filtering the olive oil in italy B. bristles fibers used for making brushes and brooms C. mattress fiberes used for mattresses D. up spum fibre is used for cauliking boats E. all if the above 27 / 3027. Largest importer of coir is A. european countries and USA B. russia and china C. middle east D. south asian countries 28 / 3028. In which of the following statement is true about the fibre utillization? A. natural reslience and durable B. resistance to water C. marine cordage/cable and hawsers for ship D. all of the above 29 / 3029. In which of the following fibre crop require least amount of water? A. jute B. coir C. sunn-hemp D. cotton E. all of the above are true 30 / 3030. Periodic change of water in tidal creeks of rapid flow to coir fibre extraction/processing A. remove the decomposing binding materials B. prevent decomposing the material from floating C. after filling (charging) pitts are covered with palm leaves D. all of the above Exit
