MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The bypass ratio is the ratio of |
| A. | mass flow rates of two streams |
| B. | pressure ratio of inlet and exit |
| C. | volume flow rate of inlet and exit |
| D. | none of the mentioned |
| Answer» B. pressure ratio of inlet and exit | |
| 2. |
In aircraft propulsion the most widely used engine is |
| A. | turbojet |
| B. | turbofan |
| C. | turboprop |
| D. | all of the mentioned |
| Answer» C. turboprop | |
| 3. |
We cannot use regenerators and intercoolers on aircraft engines. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
The propulsive efficiency is given by |
| A. | work done by engine / propulsive power |
| B. | propulsive power / work done by engine |
| C. | energy input rate / propulsive power |
| D. | propulsive power / energy input rate |
| Answer» E. | |
| 5. |
When flying at high altitudes, |
| A. | air is of less density |
| B. | air exerts less drag force on aircraft |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |