MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An index of crystallinity can be obtained from the ratio of the integrated intensity of the crystalline peaks to the total area under the XRD curve. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
A hydrophobic surface with low free surface energy gives a ____________ with water. |
| A. | Low contact angle |
| B. | High contact angle |
| C. | Zero contact angle |
| D. | Extremely low contact angle |
| Answer» C. Zero contact angle | |
| 3. |
The study of fracture surfaces of polymeric material is done using ____________ |
| A. | Atomic force microscopy |
| B. | X-ray diffraction |
| C. | Thermo gravimetric analysis |
| D. | Scanning electron microscopy |
| Answer» E. | |
| 4. |
Differential scanning calorimetry comes under the category of ____________ |
| A. | Spectral analysis |
| B. | Morphological analysis |
| C. | Thermal analysis |
| D. | Geological analysis |
| Answer» D. Geological analysis | |
| 5. |
Differential scanning calorimetry is useful for determining the ____________ |
| A. | Melting temperature, glass transition temperature, heat of fusion etc |
| B. | Volatilities of plasticizers and other additives |
| C. | Quantitative determination of additives in polymers |
| D. | Structural imperfections |
| Answer» B. Volatilities of plasticizers and other additives | |
| 6. |
Atomic force microscopy comes under the category of ____________ |
| A. | Spectral analysis |
| B. | Thermal analysis |
| C. | Mechanical testing |
| D. | Morphological analysis |
| Answer» E. | |
| 7. |
Fourier transform infrared spectroscopy is used to study ____________ |
| A. | Quantitative determination of additives in polymers |
| B. | Curing and degradation behaviour of cross-linked polymers |
| C. | Determination of volatilities of plasticizers |
| D. | Analysis of structural imperfections on the surface |
| Answer» C. Determination of volatilities of plasticizers | |
| 8. |
Which of the following technique is used to measure the number of conjugated double bonds and aromatic conjugation within the various molecules? |
| A. | Fourier transform infrared |
| B. | Differential scanning calorimetry |
| C. | U/V Visible spectroscopy |
| D. | Thermo gravimetric analysis |
| Answer» D. Thermo gravimetric analysis | |
| 9. |
A_HYDROPHOBIC_SURFACE_WITH_LOW_FREE_SURFACE_ENERGY_GIVES_A______________WITH_WATER.?$ |
| A. | Low contact angle |
| B. | High contact angle |
| C. | Zero contact angle |
| D. | Extremely low contact angle |
| Answer» C. Zero contact angle | |
| 10. |
An_index_of_crystallinity_can_be_obtained_from_the_ratio_of_the_integrated_intensity_of_the_crystalline_peaks_to_the_total_area_under_the_XRD_curve.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
The study of fracture surfaces of polymeric material is done usin? |
| A. | Atomic force microscopy |
| B. | X-ray diffraction |
| C. | Thermo gravimetric analysis |
| D. | Scanning electron microscopy |
| Answer» E. | |
| 12. |
Which of the following is used as a criterion in quality control? |
| A. | X-ray diffraction |
| B. | Mechanical testing |
| C. | Wetting properties |
| D. | Spectral analysis |
| Answer» C. Wetting properties | |
| 13. |
Differential scanning calorimetry comes under the category of |
| A. | Spectral analysis |
| B. | Morphological analysis |
| C. | Thermal analysis |
| D. | Geological analysis |
| Answer» D. Geological analysis | |
| 14. |
Differential scanning calorimetry is useful for determining the |
| A. | Melting temperature, glass transition temperature, heat of fusion etc |
| B. | Volatilities of plasticizers and other additives |
| C. | Quantitative determination of additives in polymers |
| D. | Structural imperfections |
| Answer» B. Volatilities of plasticizers and other additives | |
| 15. |
Which of the following is useful for determination of volatilities of plasticizers and other additives? |
| A. | Thermo gravimetric analysis |
| B. | Differential scanning calorimetry |
| C. | Scanning electron microscopy |
| D. | Atomic force microscopy |
| Answer» B. Differential scanning calorimetry | |
| 16. |
Atomic force microscopy comes under the category of |
| A. | Spectral analysis |
| B. | Thermal analysis |
| C. | Mechanical testing |
| D. | Morphological analysis |
| Answer» E. | |
| 17. |
Fourier transform infrared spectroscopy is used to study |
| A. | Quantitative determination of additives in polymers |
| B. | Curing and degradation behaviour of cross-linked polymers |
| C. | Determination of volatilities of plasticizers |
| D. | Analysis of structural imperfections on the surface |
| Answer» C. Determination of volatilities of plasticizers | |
| 18. |
Which of the following technique is used to measure the number of conjugated double bonds and aromatic conjugation within the various molecules? |
| A. | Fourier transform infrared |
| B. | Differential scanning calorimetry |
| C. | U/V Visible spectroscopy |
| D. | Thermo gravimetric analysis |
| Answer» D. Thermo gravimetric analysis | |