Related Questions

Styrene butadiene rubber (SBR) as compared to natural rubber has
A Poor tensile strength
B Poorer resistance
C Greater amount of heat build up heavy loading
D All of the above
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.
A Percent elongation
B Resilience
C Freezing point
D Strength
Styrene butadiene rubber (SBR) is never used for making
A Coated fabrics
B Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C Gaskets
D Soles of shoes
Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are
A 5°C and 1 kgf/cm2
B -20°C and 1 kgf/cm2
C 0°C and 1 kgf/cm2
D 0°C and 3 kgf/cm2
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are
A 50°C and 3 - 4 kg/cm2
B 50°C and 1 kgf/cm2
C 250°C and 10 kgf/cm2
D 250°C and 1 kgf/cm2
Styrene butadiene rubber (SBR) is
A A natural rubber
B A synthetic polymer
C A synthetic monomer
D Another name of silicone rubber
Starting material for the production of styrene butadiene rubber (SBR) is
A Ethyl alcohol
B Ethylene
C Both A & B
D Neither A nor B
Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of
A Cast iron
B Stainless steel or glass lined vessel
C Karbate
D Wrought iron
Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of
A Stainless steel or glass lined steel
B Nickel clad steel
C High silicon cast iron
D Aluminium
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
A Ammonium alum
B Potassium alum
C Both A & B
D Neither A nor B

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