A. Decreases its tensile strength
B. Increases its ozone & oxygen reactivity
C. Increases its oil & solvent resistance
D. Converts its plasticity into elasticity
Related Mcqs:
- 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. Plasticity
D. Weathering characteristics - Vulcanisation of rubber decreases its__________________?
A. Tensile strength
B. Resistance to organic solvents
C. Tackiness
D. Working temperature range - Vulcanisation of rubber does not increase its_________________?
A. Elasticity
B. Plasticity
C. Ductility
D. None of these - Vulcanisation of rubber does not increase its__________________?
A. Softness
B. Oxidation resistance
C. Weight & strength
D. Elasticity & water solubility - Vulcanisation of raw rubber makes it__________________?
A. Soft
B. Less elastic
C. Plastic
D. Tacky - Most commonly used rubber vulcanisation agent is __________________?
A. Sulphur
B. Bromine
C. Platinum
D. Alumina - 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 - A copolymer is formed by the combination of two or more monomer molecules_________________?
A. In a chain without the elimination of water
B. With the elimination of small amount of water
C. Of the same monomer by elimination of small molecules of water
D. None of these - Which of the following is not present in bagasse fiber?
A. Cellulose
B. Lignin
C. Pentogens
D. None of these - _____________ is a thermosetting plastic ?
A. PVC
B. Polythene
C. Bakelite
D. Polystyrene
