The question asks what happens when you bleed air from the HP compressor while maintaining thrust.
Ignoring the answers I would say:
EGT goes up (more fuel)
N1 should stay constant (constant thrust)
N2 goes up (more fuel and you're bleeding air so need to speed up the HP compressor to get bleed air and combustion air demand.
Fuel flow goes up (can't make energy for nothing)
Two answers seem right:
What increases
EGT and fuel flow
N2 and fuel flow
Why the first and not the second?
Ignoring the answers I would say:
EGT goes up (more fuel)
N1 should stay constant (constant thrust)
N2 goes up (more fuel and you're bleeding air so need to speed up the HP compressor to get bleed air and combustion air demand.
Fuel flow goes up (can't make energy for nothing)
Two answers seem right:
What increases
EGT and fuel flow
N2 and fuel flow
Why the first and not the second?
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