MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 11 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. |
For machines operating at the high speed and low pressure __________ are used. |
| A. | Heavy oils |
| B. | Light oils |
| C. | Crude oils |
| D. | Diesel oil |
| Answer» C. Crude oils | |
| 2. |
________ is used in machines operating at high pressure and slow speeds. |
| A. | Kerosene |
| B. | Diesel oil |
| C. | Heavy oil |
| D. | Crude oil |
| Answer» D. Crude oil | |
| 3. |
The viscosity of the lubricating oil must be sufficient to keep it in position. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Excessive friction takes place, when the viscosity is ________ |
| A. | Too high |
| B. | Too low |
| C. | Moderate |
| D. | Zero |
| Answer» B. Too low | |
| 5. |
If the viscosity must not be ________ to a liquid oil film between two moving liquid. |
| A. | High |
| B. | Low |
| C. | Moderate |
| D. | Zero |
| Answer» C. Moderate | |
| 6. |
Addition of linear polymers to the increases the V.I and oils with V.I higher than _______ are prepared. |
| A. | 100 |
| B. | 1000 |
| C. | 10000 |
| D. | 100000 |
| Answer» B. 1000 | |
| 7. |
The viscosity of the oil changes rapidly with the change in temperature has _______ |
| A. | High V.I |
| B. | Low V.I |
| C. | Moderate V.I |
| D. | Zero V.I |
| Answer» E. | |
| 8. |
Mathematically, viscosity index can be given by __________ |
| A. | {(L+U)/(L-H)}*100 |
| B. | {(L -U)/(L+H)}*100 |
| C. | {(L+U)/(L+H)}*100 |
| D. | {(L -U)/(L-H)}*100 |
| Answer» E. | |
| 9. |
The rate of change of the viscosity with raise in temperature is measured by an arbitrary scale called as _________ |
| A. | Arbitrary constant |
| B. | Viscosity constant |
| C. | Viscosity index |
| D. | Arbitrary index |
| Answer» D. Arbitrary index | |
| 10. |
The viscosity of an oil decrease when temperature ________ |
| A. | Decreases |
| B. | Is constant |
| C. | Increases |
| D. | 100oC |
| Answer» D. 100oC | |
| 11. |
Viscosity means the flow of the liquid is resisted by ________ |
| A. | Itself |
| B. | Other liquid |
| C. | Water |
| D. | Alcohol |
| Answer» B. Other liquid | |