MCQOPTIONS
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MCQOPTIONS
This section includes 23 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. |
In textile industries _________ are added to the lubricants. |
| A. | catalyst |
| B. | inhibitors |
| C. | oxygen |
| D. | carbon |
| Answer» C. oxygen | |
| 2. |
What is the best lubricant for tractor roller? |
| A. | graphite |
| B. | heavy oil |
| C. | grease |
| D. | vegetable oil |
| Answer» D. vegetable oil | |
| 3. |
What are the lubricants used for railway tracks? |
| A. | graphite |
| B. | grease |
| C. | coconut oil |
| D. | vegetable oil |
| Answer» B. grease | |
| 4. |
For, delicate instruments the suitable lubricants are _________ |
| A. | light cutting oil |
| B. | sunflower oil |
| C. | heavy cutting oil |
| D. | thin vegetable oil |
| Answer» E. | |
| 5. |
The lubricants for gears must possess _________ |
| A. | less oiliness |
| B. | effected by centrifugal force |
| C. | resistance to oxygen |
| D. | low load carrying capacity |
| Answer» D. low load carrying capacity | |
| 6. |
In gears, the lubricants are exposed to _______ |
| A. | high temperature |
| B. | high pressure |
| C. | low temperature |
| D. | low pressure |
| Answer» C. low temperature | |
| 7. |
The friction is needed to be reduced because _________ |
| A. | will increase the load |
| B. | will increase the consumption electricity |
| C. | it will be reducing the excess heat generation |
| D. | will increase the excess the heat generation |
| Answer» D. will increase the excess the heat generation | |
| 8. |
The reduction in friction is only when _________ of the oil film is __________ than that of the metal. |
| A. | shear strength, more |
| B. | shear strain, less |
| C. | shear strain, more |
| D. | shear strength, less |
| Answer» E. | |
| 9. |
THE_LUBRICANTS_FOR_GEARS_MUST_POSSESS_______?$ |
| A. | less oiliness |
| B. | effected by centrifugal force |
| C. | resistance to oxygen |
| D. | low load carrying capacity |
| Answer» D. low load carrying capacity | |
| 10. |
What are the lubricants used for railway tracks? |
| A. | graphite |
| B. | grease |
| C. | coconut oil |
| D. | vegetable oil |
| Answer» B. grease | |
| 11. |
For, delicate instruments the suitable lubricants are______ |
| A. | light cutting oil |
| B. | sunflower oil |
| C. | heavy cutting oil |
| D. | thin vegetable oil |
| Answer» E. | |
| 12. |
The lubricants used in refrigerators will have ________ |
| A. | no pour point |
| B. | high viscosity |
| C. | high pour point |
| D. | low cloud point |
| Answer» E. | |
| 13. |
In textile industries ____ are added to the lubricants. |
| A. | catalyst |
| B. | inhibitors |
| C. | oxygen |
| D. | carbon |
| Answer» C. oxygen | |
| 14. |
The lubricants for transformers must have quality of good ________ |
| A. | dielectric strength |
| B. | less oiliness |
| C. | no resistance to oxygen |
| D. | low load capacity |
| Answer» B. less oiliness | |
| 15. |
What_is_the_best_lubricant_for_tractor_roller? |
| A. | graphite |
| B. | heavy oil |
| C. | grease |
| D. | vegetable oil |
| Answer» D. vegetable oil | |
| 16. |
In gears, the lubricants are exposed to ______? |
| A. | high temperature |
| B. | high pressure |
| C. | low temperature |
| D. | low pressure |
| Answer» C. low temperature | |
| 17. |
The lubricants that are suitable for internal combustion engines must have ______ viscosity index. |
| A. | high |
| B. | low |
| C. | no |
| D. | minimum |
| Answer» B. low | |
| 18. |
The lubricant in internal combustion is exposed to _________ |
| A. | high pressure |
| B. | low pressure |
| C. | low temperature |
| D. | high temperature |
| Answer» E. | |
| 19. |
Oil emulsions are the most effective lubricants in _________ |
| A. | heavy cuttings |
| B. | light cutting |
| C. | engines |
| D. | gears |
| Answer» C. engines | |
| 20. |
The friction is needed to be reduced because _____ |
| A. | will increase the load |
| B. | will increase the consumption electricity |
| C. | it will be reducing the excess heat generation |
| D. | will increase the excess the heat generation |
| Answer» D. will increase the excess the heat generation | |
| 21. |
The reduction in friction is only when _____ of the oil film is ______ than that of the metal. |
| A. | shear strength, more |
| B. | shear strain, less |
| C. | shear strain, more |
| D. | shear strength, less |
| Answer» E. | |
| 22. |
For heavy cutting, the effective lubricants are _________ |
| A. | coconut oils |
| B. | cutting oils |
| C. | kerosene |
| D. | diesel |
| Answer» C. kerosene | |
| 23. |
A high temperature lubricants used may undergo ________ |
| A. | vulcanization |
| B. | volatilization |
| C. | lubrication |
| D. | combustion |
| Answer» C. lubrication | |