D:-Latex thread
Correct Answer:- Option-D
Question29:-Which among these is not considered as a quality control test for latex?
A:-VFA
B:-N2 content
C:-Sludge content
D:-Ammonia content
Correct Answer:- Option-B
Question30:-The equipment used for preparing dispersion
A:-Bal mill
B:-Ultrasonic mill
C:-Attrition mill
D:-All the above
Correct Answer:- Option-D
Question31:-Identify the additive used as white pigment
A:-Titanium di oxide
B:-Clay
C:-Whiting
D:-Carbon black
Correct Answer:- Option-A
Question32:-Metrolac is an equipment used to determine the
A:-TSC

D:-VFA
Correct Answer:- Option-B

Question33:-Which among these cannot be considered as a general purpose rubber?
A:-Styrene butadiene rubber

B:-Chloroprene rubber

:-Butyl rubber
D:-Poly butadiene rubber
Correct Answer:- Option-A
Question34:-Potassium Oleate is added to the latex compound to
A:-improve the tackiness
crease the viscosity of latex
C:-stabilize the latex
D:-cheapen the latex
Correct Answer:- Option-C
Question35:-Butyl rubber is cured with
A:-Sulphur
-Peroxides
C:-Metal oxides
D:-Dioximes
Correct Answer:- Option-D
Question36:-Which of the following is not a quality test for latex foam?
A:-Hardness
B:-Flexing resistance
C:-Compression set
D:-Tensile strength
Correct Answer:- Option-D
Question37:-High VFA value of a latex compound indicate its
A:-Poor state of preservation
-Good state of preservation
C:-High level of Ammonia
D:-Low level of Ammonia
Correct Answer:- Option-A
Question38:-The standard size of a mixing mill is
Av7" x 15"
B:-8" x 24"