GATE (TF) Textile 1992 Question Paper Solution | GATE/1992/TF/03 | Section B Question 3 (Textile Engineering & Fibre Science) The hollow space in cotton fibres is known as Lumen while that in wool is called ________. Answer / Solution Previous Question Next Question Frequently Asked Questions | FAQs GATE Textile Engineering and Fibre Science (TF) Question Papers | GATE Textile Question Answer | GATE Textile Solved Question Papers | GATE Textile Papers | GATE Textile Answer Key