MCQOPTIONS
Saved Bookmarks
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. |
INCREASE_IN_PRESSURE_AND_TEMPERATURE_OF_THE_INTAKE_AIR_INCREASES_SIGNIFICANTLY_DELAY_AND_RATE_OF_PRESSURE.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The_speed_range_of_turbocharger_is_from$ |
| A. | 10000 to 20000 r.p.m |
| B. | 20000 to 30000 r.p.m |
| C. | 30000 to 40000 r.p.m |
| D. | none of the mentioned |
| Answer» C. 30000 to 40000 r.p.m | |
| 3. |
In CI engine, the power developed by the turbocharger is sufficient to drive the compressor, and overcome mechanical friction? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The pressure of supercharger used is |
| A. | 1.0 to 1.3 bar |
| B. | 1.2 to 1.4 bar |
| C. | 1.3 to 1.5 bar |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 5. |
The ignition timings and thermal load on the engine affect the knock limit of _____________ engine. |
| A. | SI |
| B. | CI |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» B. CI | |
| 6. |
A slight ___________ in lean mixture makes the engine operation irregular and intermittent. |
| A. | increase |
| B. | reduction |
| C. | heat |
| D. | none of the mentioned |
| Answer» C. heat | |
| 7. |
In alcoholic fuels the knock is reduced at _____________ mixtures. |
| A. | rich |
| B. | lean |
| C. | equal |
| D. | none of the mentioned |
| Answer» B. lean | |
| 8. |
For volatile petroleum fuels of high octane number, the knocking is reduced at _____________ mixture. |
| A. | very rich |
| B. | very lean |
| C. | equal |
| D. | none of the mentioned |
| Answer» B. very lean | |
| 9. |
The knock limit is dependent upon |
| A. | the type of fuel used |
| B. | mixture ratio |
| C. | spark advance |
| D. | all of the mentioned |
| Answer» E. | |