MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
Diatomic oxygen is highly reactive and initiates a number of different reactions. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Ozone is harmful to plants and trees and causes very heavy crop losses each year. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
More than 90 to 95% of carbon particles originally generated within an engine are thus converted to CO2 and never comes out as carbon particles. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The exhaust of CI engines does not contain solid carbon soot particles that are generated in the fuel-rich zones within the cylinder during combustion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
DIATOMIC_OXYGEN_IS_HIGHLY_REACTIVE_AND_INITIATES_A_NUMBER_OF_DIFFERENT_REACTIONS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Ozone is harmful to plants and trees and causes very heavy crop losses each year? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Upper level ozone is harmful to lungs and other biological tissue. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
More than 90 to 95% of carbon particles originally generated within an engine are thus converted to CO2 and never comes out as carbon particles. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
A single soot particle may contain up to ____________ carbon spheres. |
| A. | 600 |
| B. | 5000 |
| C. | 6000 |
| D. | 8000 |
| Answer» C. 6000 | |
| 10. |
The exhaust of CI engines does not contains solid carbon soot particles that are generated in the fuel-rich zones within the cylinder during combustion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
When scavenging is done, some of the air and fuel mix with the exhaust gases and are expelled out of the cylinder before the exhaust port closes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The intake air-fuel mixture is used to push exhaust residual out of the open exhaust port called scavenging. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
The blowby HC emissions are about 30% of the total HC emission from the engine. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
The hydrocarbons appear due to flame quenching near the metallic walls. |
| A. | False |
| B. | True |
| Answer» C. | |