Polymer MCQs Engineering Chemistry

 

Why do we use the Fourier transform infrared spectroscopy?

(A).  To study the Quantitative determination of the additives in polymers

(B).  To study the Analysis of the structural imperfections on the surface

(C).  To study the Curing and the degradation behavior of the cross-linked polymers

(D).  To study the Determination of the volatilities of the plasticizers

(E). None of these

Multiple Choice Question Answer:  c

The Atomic force microscopy comes under the category of which of the following?

(A).  Thermal analysis

(B).  Morphological analysis

(C).  Mechanical testing

(D).  Spectral analysis

(E). None of these

Multiple Choice Question Answer:  b

The technique that is used for measuring the number of conjugated double bonds and aromatic conjugation within the various molecules is __________

(A). Fourier transform infrared

(B).  Differential scanning calorimetry

(C).  U/V Visible spectroscopy

(D).  Thermo gravimetric analysis

(E). None of these

Multiple Choice Question Answer:  c

 

Useful the for determination of volatilities of plasticizers and other additives is ________

(A).  Scanning electron microscopy

(B).  Differential scanning calorimetry

(C).  Atomic force microscopy

(D).  Thermo gravimetric analysis

(E). None of these

Multiple Choice Question Answer:  d

The Differential scanning calorimetry is useful for determining which of the following?

(A).  Melting temperature, glass transition temperature, the heat of fusion, etc

(B).  Volatilities of plasticizers and other additives

(C).  Quantitative determination of additives in polymers

(D).  Structural imperfections

(E). None of these

Multiple Choice Question Answer:  a

We use ________ as a criterion in quality control

(A).  X-ray diffraction

(B).  Mechanical testing

(C).  Wetting properties

(D).  Spectral analysis

(E). None of these

Multiple Choice Question Answer:  b

How The study of fracture surfaces of polymeric material is done?

(A).  By using Atomic force microscopy

(B).  By using the X-ray diffraction

(C).  By using the Thermo gravimetric analysis

(D).  By using the Scanning electron microscopy

(E). None of these

Multiple Choice Question Answer:  d

The Differential scanning calorimetry comes under the category of which of the following?

(A). Spectral analysis

(B).  Morphological analysis

(C).  Thermal analysis

(D).  Geological analysis

(E). None of these

Multiple Choice Question Answer:  c

A hydrophobic surface with low free surface energy gives which of the following with water?

(A).  High contact angle

(B).  Zero contact angle

(C).  Low contact angle

(D).  Extremely low contact angle

(E). None of these

Multiple Choice Question Answer:  a

We can always obtain the index of crystallinity from the ratio of the integrated intensity of the crystalline peaks to the total area under the XRD curve.

(A).  True

(B).  False

(E). None of these

Multiple Choice Question Answer:  a

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