 
			 
			MCQOPTIONS
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				This section includes 13 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. | The loss in piston work due to the early opening of the exhaust valve is less than offset by better charging and scavenging of the engine. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 2. | The power developed by the turbocharger is not sufficient to drive the compressor, and overcome its mechanical friction. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 3. | The ignition must be retarded at high intake pressure and temperature. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 4. | THE_POWER_DEVELOPED_BY_THE_TURBOCHARGER_IS_NOT_SUFFICIENT_TO_DRIVE_THE_COMPRESSOR,_AND_OVERCOME_ITS_MECHANICAL_FRICTION.?$ | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 5. | The_loss_in_piston_work_due_to_early_opening_of_the_exhaust_valve_is_less_than_offset_by_better_charging_and_scavenging_of_the_engine.$ | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 6. | The ignition must be retarded at high intake pressure and temperature? | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 7. | The ignition timings and thermal load on the engine affect the knock limit of CI engine. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 8. | Rich mixtures are used to control detonation, which further increases the specific fuel consumption of the engine. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 9. | The increased flame speeds make the petrol engine more sensitive to fuel-air ratio and engine cannot run on strong mixtures without knock. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 10. | Increased intake pressure and temperature reduces ignition delay and decreases flame speed. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 11. | The supercharged petrol engines have a lower fuel consumption than naturally aspirated engines. | 
| A. | True | 
| B. | False | 
| Answer» C. | |
| 12. | ____________ in supercharging pressure increases the tendency to detonate and pre-ignite. | 
| A. | Decrease | 
| B. | Increase | 
| C. | Unpredictable | 
| D. | None of the mentioned | 
| Answer» B. Increase | |
| 13. | Supercharging of S.I engines is employed only for aircraft and racing car engines. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |