MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
According to ISA atmospheric model what is the value of datum atmospheric pressure in N/m2? |
| A. | 101325 |
| B. | 101335 |
| C. | 101336 |
| D. | 101326 |
| Answer» B. 101335 | |
| 2. |
Regions of low pressure, cyclones and high pressure, anti-cyclones are formed by effects of convection currents in the atmosphere. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
At the equator the mean seasonal variation is small and the mean temperature is high whereas at the poles the mean seasonal variation is large and the mean temperature is low. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The ratio of specific heats (γ) of air is _________ |
| A. | 1.6 |
| B. | 1.7 |
| C. | 1.4 |
| D. | 1.8 |
| Answer» D. 1.8 | |
| 5. |
What is the value of characteristic gas constant(R) in Nm/kg-K? |
| A. | 287.05287 |
| B. | 2.8705287 |
| C. | 2870.5287 |
| D. | 2.8705287 |
| Answer» B. 2.8705287 | |
| 6. |
What are the percentages of nitrogen, oxygen, argon and carbon dioxide in atmosphere? |
| A. | 78%, 21%, 0.9%, 0.03% |
| B. | 75%, 24%, 0.7%, 0.03% |
| C. | 71%, 28%, 0.9%, 0.04% |
| D. | 75%, 24%, 0.9%, 0.05% |
| Answer» B. 75%, 24%, 0.7%, 0.03% | |
| 7. |
Which of the following holds a correct relation between pressure, temperature and altitude? |
| A. | Pressure increases, temperature decreases, altitude increases |
| B. | Pressure decreases, temperature decreases, altitude increases |
| C. | Pressure decreases, temperature increases, altitude increases |
| D. | Pressure decreases, temperature decreases, altitude decreases |
| Answer» C. Pressure decreases, temperature increases, altitude increases | |
| 8. |
What is meant by Coriolis force? |
| A. | An earth force that tends to deflect the moving objects on earth |
| B. | An earth force that tends to vary the temperature |
| C. | An earth force that tends to vary the pressure |
| D. | An earth force that tends to vary the gravitational force |
| Answer» B. An earth force that tends to vary the temperature | |
| 9. |
Which of the following is the major reason for the global atmosphere pressure distribution? |
| A. | Convective air flow |
| B. | Conductive air flow |
| C. | Radiation air flow |
| D. | Conductive and radiation air flow |
| Answer» B. Conductive air flow | |
| 10. |
Between the poles and the equator the mean global temperature roughly follows a sine curve. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
What is the ideal gas equation? |
| A. | P=nRT |
| B. | PV=nRT |
| C. | PV=ρRT |
| D. | Pρ=RT |
| Answer» C. PV=ρRT | |