MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 fuel in diesel engine is normally injected at pressure of ____________ |
| A. | 5-10 kg/cm<sup>2</sup> |
| B. | 20-25 kg/cm<sup>2</sup> |
| C. | 60-80 kg/cm<sup>2</sup> |
| D. | 90-130 kg/cm<sup>2</sup> |
| Answer» E. | |
| 2. |
If the temperature of intake air in I.C. engine is lowered, then its efficiency will ____________ |
| A. | increase |
| B. | decrease |
| C. | remain same |
| D. | increase up to a certain limit and then decrease |
| Answer» B. decrease | |
| 3. |
What is the combustion in spark ignition engine? |
| A. | homogeneous |
| B. | heterogeneous |
| C. | laminar |
| D. | none of the mentioned |
| Answer» B. heterogeneous | |
| 4. |
The pressure at the end of compression, in diesel engines, is approximately ____________ |
| A. | 10 bar |
| B. | 20 bar |
| C. | 25 bar |
| D. | 35 bar |
| Answer» E. | |
| 5. |
The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will ____________ |
| A. | increase |
| B. | decrease |
| C. | be independent |
| D. | none of the mentioned |
| Answer» C. be independent | |
| 6. |
In a diesel engine, the fuel is ignited by ____________ |
| A. | spark |
| B. | injected fuel |
| C. | heat resulting from compressing air that is supplied for combustion |
| D. | combustion chamber |
| Answer» D. combustion chamber | |
| 7. |
The combustion in compression ignition engine is ____________ |
| A. | homogeneous |
| B. | heterogeneous |
| C. | laminar |
| D. | none of the mentioned |
| Answer» C. laminar | |
| 8. |
In Diesel cycle, heat addition takes place at ____________ |
| A. | constant temperature |
| B. | constant pressure |
| C. | constant volume |
| D. | none of the mentioned |
| Answer» C. constant volume | |
| 9. |
A diesel engine has compression ratio from ____________ |
| A. | 6 to 10 |
| B. | 10 to 15 |
| C. | 16 to 20 |
| D. | 25 to 40 |
| Answer» D. 25 to 40 | |
| 10. |
Diesel cycle is also known as _____________ |
| A. | constant volume cycle |
| B. | constant pressure cycle |
| C. | constant temperature cycle |
| D. | none of the mentioned |
| Answer» C. constant temperature cycle | |