Free Printable Testing & Inspection of Composites (Physical Test)

1.

Which one is NOT referring to physical test?

a)

Moisture absorption test

b)

Hardness test

c)

Impact test

d)

Fibre content test

2.

Which one is referring to the type of hardness test?

a)

TGA

b)

Flexural

c)

Brinell

d)

Archimedes

3.

Barcol Impressor is suitable to check the hardness of polymer composite material.

a)

True

b)

False

4.

Select Standard Test Method for Indentation Hardness of Rigid Plastics by Means of a Barcol Impressor.

a)

ASTM D 2583

b)

ASTM D 790

c)

ASTM D 290

d)

ASTM 3034

5.

Select three (3) principal operational definitions of hardness.

a)

Scratch

b)

Indentation

c)

Rebound

d)

Impact

6.

Give a type of method to perform fibre content test.

a)

Ignition loss

b)

Fibre burning

c)

Matrix digestion

d)

Soaking a sample

7.

'The technique is based on digestion of the matrix by a suitable liquid which does not attack the reinforcing fibers'

The above statement is refers to .......

a)

Fibre content test

b)

Density test

c)

Hardness test

d)

Void content test

8.

Select the causes that may give erroneous results for matrix digestion of fibre content test.

a)

Incomplete digestion of the resin.

b)

Sample size must be large enough to be representative and weighed accurately.

c)

Accuracy is dependent on accuracy of density measurements.

d)

Sample size is not effect the errors of the fibre content result.

9.

Ignition loss is refers to the technique determines ignition loss of cured polymer-matrix composites which can be considered to be the fibre mass.

a)

True

b)

False

10.

The calculation of % water absorb is :-

a)

$\frac{\left(wt\ sample\ after\ test\ -wt\ sample\ before\ test\right)}{wt\ sample\ before\ test\ }x100$

b)

$\frac{\left(wt\ sample\ before\ test\ -\ wt\ sample\ after\ test\right)}{wt\ sample\ after\ test}x100$

c)

$\frac{\left(wt\ sample\ after\ test\ -density\ of\ sample\right)}{wt\ sample\ after\ test}x100$

d)

$\frac{\left(wt\ sample\ before\ test\ -\ wt\ sample\ after\ test\right)}{wt\ sample\ before\ test}x100$

Testing & Inspection of Composites (Physical Test) - DTP 4

Total questions: 10

Worksheet time: 6mins

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