MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
Use of low octane fuel can eliminate detonation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Low engine speeds will give low turbulence and low flame velocities and knock may occur at low speed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Increase of pressure increases the self ignition temperature and the induction period. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What are the effects of knocking? |
| A. | noise and roughness |
| B. | mechanical damage |
| C. | carbon deposits |
| D. | all of the mentioned |
| Answer» B. mechanical damage | |
| 5. |
Auto ignition refers to the initiation of combustion without the necessity of a flame. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
In SI engine, ignition lag is reduced if the initial temperature and pressure are _____________ |
| A. | decreased |
| B. | increased |
| C. | constant |
| D. | none of the mentioned |
| Answer» B. increased | |
| 7. |
A definite flame front is one that separates the fresh mixture from the products of combustion travels from the spark plug to the other end of the combustion chamber. |
| A. | True |
| B. | False |
| Answer» B. False | |