Tyres are made by___________________?
Tyres are made by___________________? A. Injection moulding B. ExtrusionC. Rotational moulding D. Compression moulding
Tyres are made by___________________? A. Injection moulding B. ExtrusionC. Rotational moulding D. Compression moulding
Celluloid is__________________? A. Cellulose acetate B. Regenerated celluloseC. Cellulose nitrate D. Cellulose acetate butyrate
Cation exchange resins used in water treatment is made from _____________ resin? A. Urea formaldehyde B. Epoxy C. Amino D. Phenolic
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its_________________? A. Elasticity B. Strength C. PlasticityD. Weathering characteristics
Silicone resins, which are highly water repellent and has good heat resistance cannot be used___________________? A. As room temperature adhesive B. As grease & lubricant C. Hydraulic fluid for heat transfer D. Resin for lamination
Transistor parts and refrigerator components are normally made of_____________________? A. Polystyrene B. Polyester C. High density polythene D. Polyurethane
Which of the following has the weakest intermolecular forces ? A. Polyisoprene B. Nylon-66 C. Polystyrene D. Bakelite
Epoxy resin is a polymer containing two or more groups of the bellow fig. is called epoxide group or ethoxyline group. It is a _______________? A. Polyamide & an elastomer B. Good adhesive C. Surface coating agentD. Both B. and…
Which of the following is an inorganic polymer ? A. Teflon B. PerspexC. Silicones D. Bakelite
Polyurethane cannot be used for making____________________? A. Mattresses & foam B. Coating material C. AdhesivesD. Bottles