21-11. Turbine Engines
All questions: 172
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1. A “hung start” is the failure of an engine to accelerate to its normal idle speed. It may be caused by:
2. An engine pressure ratio (EPR) can be defined as the ratio of:
3. The propulsive efficiency of a turbojet is the ratio of:
4. The disadvantages of axial flow compressors compared to centrifugal flow compressors are:
1) expensive to manufacture
2) limited airflow
3) greater vulnerability to foreign object damage
4) lower pressure ratio
The combination regrouping all the correct statements is:
5. At constant fuel flow, if engine compressor air is bled off for engine anti-icing or a similar system, the turbine temperature: