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. |
COATING_AND_OVERLAYS_WILL_BE_DONE_BY_USING__________?$ |
| A. | inorganic lubricants |
| B. | organic lubricants |
| C. | soft metal |
| D. | oxides |
| Answer» D. oxides | |
| 2. |
Soft metal lubricants are produced by using_______ |
| A. | purifying |
| B. | thermal spraying |
| C. | distillation |
| D. | electroplating |
| Answer» C. distillation | |
| 3. |
Soft metals possess lubrication due to ____? |
| A. | low plasticity |
| B. | high plasticity |
| C. | no plasticity |
| D. | moderate plasticity |
| Answer» C. no plasticity | |
| 4. |
Which of the following is not the inorganic lubricant? |
| A. | WS<sub>2</sub> |
| B. | TiTe<sub>2</sub> |
| C. | GaS |
| D. | Pb |
| Answer» E. | |
| 5. |
The crystal lattice of the inorganic lubricants has a _____ forming thin parallel planes. |
| A. | octagonal rings |
| B. | hexagonal rings |
| C. | pentagonal rings |
| D. | trigonal rings |
| Answer» C. pentagonal rings | |
| 6. |
Powder of a solid lubricant delivered to the ______ |
| A. | rubbing area |
| B. | composite material |
| C. | film |
| D. | surface |
| Answer» B. composite material | |
| 7. |
Which of the following are the disadvantages of solid lubricants? |
| A. | poor heat dissipation |
| B. | more effective even at high pressures |
| C. | high resistance to detoriation |
| D. | permit equipment is heavy |
| Answer» B. more effective even at high pressures | |
| 8. |
One of the advantages of the solid lubricants is ______ |
| A. | unstable in radiation |
| B. | high coefficient of friction than liquid lubricants |
| C. | low coefficient of friction |
| D. | permit equipment is simple |
| Answer» E. | |
| 9. |
In solid lubricants, the _____ will be low. |
| A. | coefficient of friction |
| B. | calorific value |
| C. | stability |
| D. | cleanliness |
| Answer» B. calorific value | |
| 10. |
How many types of lubricants are there on basis of the shear strength? |
| A. | 5 |
| B. | 3 |
| C. | 4 |
| D. | 2 |
| Answer» D. 2 | |