MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
It_is_assumed_that_all_the_processes_of_a_air_standard_cycle_are$ |
| A. | reversible |
| B. | irreversible |
| C. | adiabatic |
| D. | isothermal |
| Answer» B. irreversible | |
| 2. |
The thermal efficiency of diesel engines on weak mixtures is |
| A. | unaffected |
| B. | lower |
| C. | higher |
| D. | dependent on other factors |
| Answer» D. dependent on other factors | |
| 3. |
The thermal efficiency of petrol and gas engines is about |
| A. | 15% |
| B. | 30% |
| C. | 50% |
| D. | 70% |
| Answer» C. 50% | |
| 4. |
If the compression ratio in I.C. engine increases, then its thermal efficiency will |
| A. | increase |
| B. | decrease |
| C. | remain same |
| D. | none of the mentioned |
| Answer» B. decrease | |
| 5. |
The specific fuel consumption per B.P. hour for a petrol engine is about |
| A. | 0.2 kg |
| B. | 0.25 kg |
| C. | 0.3 kg |
| D. | 0.35 kg |
| Answer» C. 0.3 kg | |
| 6. |
The air standard efficiency of an I.C. engine depends on |
| A. | fuel used |
| B. | speed of engine |
| C. | compression ratio |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |