MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
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 | |
| 2. |
Use_of_low_octane_fuel_can_eliminate_detonation.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Increase of pressure increases the self ignition temperature and the induction period? |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The effects of knocking are |
| A. | noise and roughness |
| B. | mechanical damage |
| C. | carbon deposits |
| D. | all of the mentioned |
| Answer» B. mechanical damage | |
| 5. |
Auto ignition refers to 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. |
The process of autoignition has nothing to do towards engine knock. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
A definite flame front is one which 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 | |
| 9. |
In a spark ignition engine combustion which is initiated between the spark plug electrodes spreads across the combustible mixture. |
| A. | True |
| B. | False |
| Answer» B. False | |