MCQOPTIONS
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MCQOPTIONS
This section includes 8 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 volumetric efficiency of a well designed engine may be ____________ |
| A. | 30 to 40% |
| B. | 40 to 60% |
| C. | 60 to 70% |
| D. | 75 to 90% |
| Answer» E. | |
| 2. |
The thermal efficiency of a diesel engine on weak mixtures is ____________ |
| A. | unaffected |
| B. | lower |
| C. | higher |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
In a standard dual air cycle, for a fixed amount of heat supplied and a fixed value of compression ratio, the mean effective pressure ____________ |
| A. | shall increase with increase in r<sub>p</sub> and decreases in r<sub>c</sub> |
| B. | shall increase with decrease in r<sub>p</sub> and increases in r<sub>c</sub> |
| C. | shall remain independent of r<sub>p</sub> |
| D. | shall remain independent of r<sub>c</sub> |
| Answer» B. shall increase with decrease in r<sub>p</sub> and increases in r<sub>c</sub> | |
| 4. |
Most high speed compression engines operate on ____________ |
| A. | Otto cycle |
| B. | Diesel Cycle |
| C. | Dual cycle |
| D. | Carnot cycle |
| Answer» D. Carnot cycle | |
| 5. |
In Dual cycle, heat rejection takes place ____________ |
| A. | at constant volume |
| B. | first at constant volume then at constant pressure |
| C. | constant pressure |
| D. | none of the mentioned |
| Answer» B. first at constant volume then at constant pressure | |
| 6. |
In Dual cycle, heat addition takes place ____________ |
| A. | at Constant volume |
| B. | first at constant volume then at constant pressure |
| C. | constant pressure |
| D. | none of the mentioned |
| Answer» C. constant pressure | |
| 7. |
Dual cycle is also known as ____________ |
| A. | Diesel cycle |
| B. | Joule cycle |
| C. | Mixed cycle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
Dual Cycle is a combination of ____________ |
| A. | Otto cycle and Diesel cycle |
| B. | Otto cycle and Stirling cycle |
| C. | Brayton cycle and steam cycle |
| D. | None of the mentioned |
| Answer» B. Otto cycle and Stirling cycle | |