Polymer Composites Interview Questions

Polymer Composites interview questions

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Total Questions: 5

1. Which of the following does not combine with fiber to give composites?

A. Metals

B. Ceramics

C. Non-metals

D. Polymers

Correct Answer is : Non-metals

2. Which of the following is not a property of matrix materials which are modified by adding particulate fillers?

A. Improved performance at elevated temperature

B. Decrease in surface hardness

C. Modification in electrical conductivity

D. Improved abrasion resistance

Correct Answer is : Decrease in surface hardness

3. What is aspect ratio?

A. Length to diameter ratio

B. Length to depth ratio

C. Depth to length ratio

D. Diameter to length ratio

Correct Answer is : Length to diameter ratio

4. Which of the following type of composite is not classified under the category of number of layers?

A. Unidirectional fibre reinforced

B. Laminar

C. Sandwich panels

D. Glass-fibre reinforced

Correct Answer is : Glass-fibre reinforced

5. Select the incorrect statement from the following option.

A. Laminar composites consists of 2-D sheets that are stacked and subsequently cemented together

B. Sandwich panels consist of two stronger outer sheets separated by a layer of less dense core material

C. Core material should be heavy-weight and low corrosion resistance

D. The stiffness of the sandwich panel increases as the core thickness increases

Correct Answer is : Core material should be heavy-weight and low corrosion resistance

Polymer Composites interview questions