Gas Turbines - Air Inlets: DGCA Technical General questions
The intake is the first part of the engine the air meets, and its shape decides how cleanly that air reaches the compressor. A subsonic pitot intake widens towards the engine, trading some of the air's speed for pressure.
Its 7 questions test intake pressure, ram pressure recovery, intake icing and safe ground runs. Exam sessions have used 1 of these intake questions.
With the engine running and the aircraft standing still, pressure at the compressor face is below ambient: the engine is sucking air in and there is no ram effect yet. As forward speed builds, ram effect lifts the pressure at the compressor face back to ambient and then above it.
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Question 1 of 5
In a high bypass engine with a pitot intake, with the engine running and the brakes on, what will P1 be in relation to P0?
Question 2 of 5
In a pitot intake the term Ram Pressure Recovery refers to the time when:
Question 3 of 5
A pitot intake forms a _____ duct _____ the fan to ensure that the airflow _____ to _____ and achieves a _____.
Question 4 of 5
With an S type intake, if the pilot selects max rpm while standing still, there is a strong possibility that:
Question 5 of 5
What effect will severe icing in the intake have on a high bypass engine?
2 more questions in this chapter
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