MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Sodium base greases can be utilized up to the temperature of ____________ |
| A. | 175<sup>o</sup>C |
| B. | 100<sup>o</sup>C |
| C. | 75<sup>o</sup>C |
| D. | 80<sup>o</sup>C |
| Answer» B. 100<sup>o</sup>C | |
| 2. |
High mechanical stability is more for ________ |
| A. | sodium base greases |
| B. | lithium soap greases |
| C. | complex greases |
| D. | cup greases |
| Answer» C. complex greases | |
| 3. |
Lithium soap greases are __________ |
| A. | temperature resistant |
| B. | fire resistant |
| C. | water resistant |
| D. | pressure resistant |
| Answer» D. pressure resistant | |
| 4. |
Complex grease fibers are formed by reacting two dissimilar ___________ with single _________ |
| A. | base, alkali |
| B. | alkali, acids |
| C. | alkali, base |
| D. | acids, alkali |
| Answer» E. | |
| 5. |
Calcium complex grease can be made from ___________ |
| A. | lime, fatty acid, acetic acid |
| B. | calcium, lime, acetic acid |
| C. | calcium, lime, acetic acid |
| D. | lime, calcium, acetic acid |
| Answer» B. calcium, lime, acetic acid | |
| 6. |
Slaked lime solution is mixed with tallow oil with constant stirring to produced ______________ |
| A. | solution base greases |
| B. | cup greases |
| C. | complex greases |
| D. | lithium base greases |
| Answer» C. complex greases | |
| 7. |
The more friction of the greases is due to their high __________ |
| A. | velocity |
| B. | viscosity |
| C. | temperature coefficient |
| D. | buoyancy |
| Answer» C. temperature coefficient | |
| 8. |
99% of grease is produced from __________ |
| A. | petroleum oil |
| B. | olive oil |
| C. | castor oil |
| D. | whale oil |
| Answer» B. olive oil | |
| 9. |
Stabilized erosion of the fine solid particles in liquid is called ___________ |
| A. | colloidal suspension |
| B. | molecular suspension |
| C. | colloidal dispersion |
| D. | molecular dispersion |
| Answer» D. molecular dispersion | |
| 10. |
Lubricating oil thickened with metallic soaps or by adding solid forms __________ |
| A. | grease |
| B. | vaselines |
| C. | oils |
| D. | petrol |
| Answer» B. vaselines | |