MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
In CI engines fuel is injected into the combustion chamber at about 15 C ___________ TDC during compression stroke. |
| A. | after |
| B. | before |
| C. | at |
| D. | none of the mentioned |
| Answer» C. at | |
| 2. |
The rate of burning does not depend on the relative movement of the burning droplets to the surrounding air charge. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Towards the end of the compression stroke when injection of the fuel into the combustion chamber commences, the quantity of fuel discharged is spread out over a predetermined period. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following factors affecting combustion in the CI engine? |
| A. | ignition quantity of fuel |
| B. | injection pressure of droplet size |
| C. | injection advance angle |
| D. | all of the mentioned |
| Answer» B. injection pressure of droplet size | |
| 5. |
The rate of pressure rise depends on the amount of fuel present at the end of delay period, degree of turbulence, fineness of atomization and spray pattern. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
What are the phases of CI engine combustion? |
| A. | ignition delay period |
| B. | period of rapid combustion |
| C. | period of controlled combustion |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
In the CI engine, the intake is air alone and the fuel is injected at high pressure in the form of fine droplets at the start of compression. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In CI engine, combustion occurs by the high temperature produced by the compression of the air. |
| A. | True |
| B. | False |
| Answer» B. False | |