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This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Aircraft Performance knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which of the following is the correct equation for longitudinal performance equation of motion? |
A. | \(\frac{\eta P}{V}\)=D-Wsinγ2+mV |
B. | \(\frac{\eta P}{V}\)=D+Wsinγ2-mV |
C. | \(\frac{\eta T}{V}\)=D+Wsinγ2+mV |
D. | \(\frac{\eta P}{V}\)=D+Wsinγ2+mV |
Answer» E. | |
2. |
What is meant by static thrust? |
A. | thrust at maximum airspeed |
B. | power at zero airspeed |
C. | thrust at zero airspeed |
D. | power at maximum airspeed |
Answer» D. power at maximum airspeed | |
3. |
What is the propeller advance ratio for the power-producing powerplant when the true airspeed is 300m/s and the diameter of propeller is 0.5 m with rotational speed of 117.81rad/sec? |
A. | 7.01 |
B. | 9.02 |
C. | 5.09 |
D. | 5.89 |
Answer» D. 5.89 | |
4. |
Which of the following relations are correct for propeller advance ratio? |
A. | J=\(\frac{TV}{nD}\) |
B. | J=\(\frac{P}{nD}\) |
C. | J=\(\frac{V}{nD}\) |
D. | J=\(\frac{PV}{nD}\) |
Answer» D. J=\(\frac{PV}{nD}\) | |
5. |
Which of the following relations are correct for pressure coefficient? |
A. | CP=\(\frac{P}{\frac{\rho n^3D^4}{2}}\) |
B. | CP=\(\frac{P}{\frac{\rho n^2D^5}{2}}\) |
C. | CP=\(\frac{TV}{\frac{\rho n^3D^5}{2}}\) |
D. | CP=\(\frac{P}{\frac{\rho n^3D^5}{2}}\) |
Answer» E. | |
6. |
The propeller efficiency depends on the advance ratio and power coefficient. |
A. | True |
B. | False |
Answer» B. False | |
7. |
Which of the following represents the correct formula for propeller efficiency? |
A. | η=\(\frac{T}{P}\) |
B. | η=\(\frac{P}{TV}\) |
C. | η=\(\frac{T}{PV}\) |
D. | η=\(\frac{TV}{P}\) |
Answer» E. | |
8. |
Which of the following is a power-producing powerplant? |
A. | Turbojet |
B. | Turbofan |
C. | Rocket |
D. | Piston engine |
Answer» E. | |
9. |
What is power producing powerplant? |
A. | Propulsive force that is directed by increasing momentum of the airflow |
B. | Propulsive force that is obtained from shaft power by propeller |
C. | Propulsive force that is directed by decreasing momentum of the airflow |
D. | Propulsive force that is obtained from engine power by propeller |
Answer» C. Propulsive force that is directed by decreasing momentum of the airflow | |