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Daily Quiz
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Which of the following properties characterizes a hard clay typically used in rubber compounding?
High fluidity
High plasticity
Low surface area
Low oil absorption
What test method is commonly used to measure the gum strength of rubbers?
Durometer hardness test
Tensile strength test
Tear resistance test
What does the term "Number Average Molecular Weight (Mn)" refer to in polymers?
The weight average of the molecular weights of all polymer chains in a sample
The sum of the molecular weights of all polymer chains divided by the total number of chains
The average molecular weight weighted by the mass contribution of each polymer chain
The molecular weight of the most frequently occurring polymer chain
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