MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
For a given compression ratio, as the mixture is made progressively rich from lean the mean effective pressure ____________ |
| A. | increases |
| B. | decreases |
| C. | initially increases and then decreases |
| D. | remains more or less the same |
| Answer» D. remains more or less the same | |
| 2. |
When the mixture is lean ____________ |
| A. | efficiency is less |
| B. | power output is less |
| C. | maximum temperature and pressure are higher |
| D. | all of the mentioned |
| Answer» C. maximum temperature and pressure are higher | |
| 3. |
Cycles with lean to very lean mixture tend towards ____________ |
| A. | practice cycles |
| B. | fuel air cycles |
| C. | air standard cycles |
| D. | none of the mentioned |
| Answer» E. | |
| 4. |
Mean effective pressure at a given compression ratio is maximum when the air fuel ratio is? |
| A. | higher than stoichiometric |
| B. | lower than stoichiometric |
| C. | equal to stoichiometric |
| D. | none of the mentioned |
| Answer» C. equal to stoichiometric | |
| 5. |
Fuel air ratio affects maximum power output of the engine due to ____________ |
| A. | higher specific heats |
| B. | chemical equilibrium losses |
| C. | higher specific heats and chemical equilibrium losses |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |