Cork is a good insulator because Heat Transfer Mcqs January 17, 2020 BILAL KHATTAK0 A.Its density is low B.It is porous C.It can be powdered D.It can be cast into rolls E.It is flexible Related Mcqs: A piece of cork weighing 4 kg floats in water with 40% of its volume under the liquid. Determine specific gravity of cork. I was surprised at his stiff attitude. Which one of the following is a very good insulator? While machining cast iron generally cutting fluid is not required because A pin type insulator is generally used upto Generally for the melting of cast iron, electric furnaces are not used because The value of Poisson’s ratio for cork is __________ observed a slice of cork: The viscosity of the hydrocarbon liquids Which of the following material can withstand maximum shocks without failure?