Nozzle guide vanes give a
•  pressure increase, velocity decrease.
•  pressure increase, velocity increase.
•  pressure decrease, velocity increase.

Diverdeep asking:
•  nozzle guide vane are associated with compression section, so they're used to maximise compression performance (they're divergent) by decrease the speed & increasing pressure gain for each stage

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Nozzle guide vanes give a
•  pressure increase, velocity decrease.
•  pressure increase, velocity increase.
•  pressure decrease, velocity increase.

Diverdeep asking:
•  nozzle guide vane are associated with compression section, so they're used to maximise compression performance (they're divergent) by decrease the speed & increasing pressure gain for each stage

Community comments: 0

Upon what quality or characteristic of a lubricating oil is its viscosity index based?
•  Its rate of flow through an orifice at a standard temperature.
•  Its rate of change in viscosity with temperature change.
•  Its resistance to flow at a standard temperature as compared to high grade paraffin base oil at the same temperature.

Diverdeep asking:
•  viscosity is defined as mm^2/s for a determined temperature.

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Extending a leading edge slat will have what effect on the angle of attack of a wing?
•  Increase the angle of attack.
•  Decrease the angle of attack.
•  No effect on angle of attack.

Tommibona asking:
•  The effect of the slat is to prolong the lift curve by delaying the
stall until a higher angle of attack. how does it possible that the angle of attack decreases?

Community comments: 0

Calculate the area of the shape shown:

•  3pi
•  6.75pi
•  17.5pi

sakismiou asking:
•  Please write your question here.

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