 
			 
			MCQOPTIONS
 Saved Bookmarks
				This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.
| 1. | With greatly increased mixing efficiency and speeds, large regions of fuel-rich mixtures can be avoided when combustion starts. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 2. | Regeneration does not consists of combusting the particulates in the excess oxygen contained in the exhaust of the lean operating CI engine. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 3. | Traps typically remove _____________ of particulates in the exhaust flow. | 
| A. | 30-80% | 
| B. | 40-90% | 
| C. | 50-100% | 
| D. | 60-90% | 
| Answer» E. | |
| 4. | Traps are filter-like system often made of ceramic in the form of a monolith or mat, or metal wire mesh. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 5. | Platinum and palladium catalyst promotes the removal of _____________ of the gaseous CO in the exhaust. | 
| A. | 30-80% | 
| B. | 40-90% | 
| C. | 50-100% | 
| D. | none of the mentioned | 
| Answer» C. 50-100% | |
| 6. | Platinum and palladium catalyst promotes the removal of ____________ of the gaseous HC in the exhaust. | 
| A. | 30-80% | 
| B. | 40-90% | 
| C. | 50-100% | 
| D. | none of the mentioned | 
| Answer» B. 40-90% | |
| 7. | NOx is reduced in a CI engine by the use of EGR. | 
| A. | increased | 
| B. | reduced | 
| C. | unpredictable | 
| D. | none of the mentioned | 
| Answer» C. unpredictable | |
| 8. | REGENERATION_DOES_NOT_CONSISTS_OF_COMBUSTING_THE_PARTICULATES_IN_THE_EXCESS_OXYGEN_CONTAINED_IN_THE_EXHAUST_OF_THE_LEAN_OPERATING_CI_ENGINE.?$ | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 9. | With greatly increased mixing efficiency and speeds, large regions of fuel-rich mixtures can be avoided when combustion starts.$ | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 10. | Traps typically remove _____________ of particulates in the exhaust flow? | 
| A. | 30-80% | 
| B. | 40-90% | 
| C. | 50-100% | 
| D. | 60-90% | 
| Answer» E. | |
| 11. | Traps are filter-like system often made of ceramic in the form of a monolith or mat,or metal wire mesh. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 12. | Diesel fuel contains sulphur impurities, and this leads to poisoning of the catalyst materials. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 13. | Platinum and palladium catalyst promote the removal of ____________ of the gaseous HC in the exhaust. | 
| A. | 30-80% | 
| B. | 40-90% | 
| C. | 50-100% | 
| D. | none of the mentioned | 
| Answer» B. 40-90% | |
| 14. | Platinum and palladium are two main catalyst materials used for converters on CI engines. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 15. | EGR and lower combustion temperatures contribute to an ____________ in solid soot. | 
| A. | decreases | 
| B. | increases | 
| C. | same | 
| D. | none of the mentioned | 
| Answer» C. same | |
| 16. | NOx is reduced in a CI engine by the use of EGR. | 
| A. | increased | 
| B. | reduced | 
| C. | unpredictable | 
| D. | none of the mentioned | 
| Answer» C. unpredictable | |