11. Aeroplane aerodynamics, structures and systems - Q&A
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If the straight and level stall speed is 100 kt, what will be the stall speed in a 1.5g turn?
- 81 kts
- 122 kts
- 150 kts
What is the formula ?
If the battery fails on the ground (INS System)
- an amber light appears on the MSU and a horn sounds.
- a red warning light appears on the MSU and a horn sounds.
- a red light appears on the CDU and a horn sounds.
What is MSU?
If the battery fails on the ground (INS System)
- an amber light appears on the MSU and a horn sounds.
- a red warning light appears on the MSU and a horn sounds.
- a red light appears on the CDU and a horn sounds.
What is MSU?
When resetting the CSD on the ground, the engine should be
- rotating at idle.
- stationary.
- rotating at Nsync.
but while connecting IDG the N2 should be rotating.
The CSD or IDG speed governor setting
- is not allowed to be adjusted.
- is adjusted with the engine stationary.
- is adjusted with the engine running.
b737 AMM:
E. Adjust the CSD Output Speed
SUBTASK 24-11-11-215-039-001
WARNING: MAKE SURE THE ENGINES ARE STOPPED WHEN YOU ADJUST THE CSD. THE
CSD ADJUSTMENT PUTS MAINTENANCE PERSONS IN THE DANGEROUS ZONE
THAT IS AROUND THE ENGINE INLET. ENGINE SUCTION CAN CAUSE INJURY TO
PERSONS.
(1) Make sure that the engine is stopped (PAGEBLOCK 71-00-00/201)...............
What is the EASA regulation of the minimum separation between a seat and another seat or structure?
- 10 inches
- There is no EASA guideline.
- 7 inches
It means the leg space or lateral, between seats?
On large aircraft, braked wheel assemblies are normally inflated with
- nitrogen and not more than 5% of air.
- an argon and CO2 mixture.
- nitrogen.
i found the same question but difference answer
When pressurising the aircraft on the ground for test purposes, internal doors, cupboards etc. must be
- all open.
- removed.
- all closed.
If is all open, you can´t pressurise the aircraft
If True Airspeed is 470 knots, what is the Equivalent Air speed?
- 662 knots
- 550 knots
- 278 knots
Is there a formula for this?
If angle of attack is increased beyond th e critical angle of attack, the lift coefficient ... and the stagnation point moves...
- decreases; rearward
- increases; rearward
- decreases; forward
Is this a typo? Shouldn't this be seperation point? Stagnation point is infront of the leading edge, it can only move up and down not forward and back.
With reference to differential aileron control
- drag decreases on the outer wing.
- drag increases on the outer wing.
- drag increases on the inner wing.
why the answer is not drag decrease on the outer wing since when in a roll... drag will increase on the outer wing....
Ailerons control the aircraft in the
- longitudinal plane.
- lateral plane.
- directional plane.
What is the difference between the axis and the plane . Aileron roll is provided along the longitudinal axis. Does this occurs in the lateral plane ?
Stalling speed in a 15 degrees bank level turn is 60kt. The stalling speed in a 45 degrees bank level turn will be
- 70 kts.
- 60 kts.
- 50 kts.
How do I calculate stalling speed? Please any help will do thanks
The following factors increase stall speed:
- A higher weight, selecting a higher flap setting, a forward c.g. shift.
- An increase in load factor, a forward c.g. shift, decrease in thrust.
- A lower weight, decreasing bank angle, a smaller flap setting.
Not clear answer, why reducing the trust increasing stall speed?
When an aircraft is heading due north (magnetic) towards a VOR station the reference and variable signals will be
- 270 degrees out of phase.
- in phase.
- 180 degrees out of phase.
Could you explain this question or send any link in internet, please.
What is the main purpose of a frise aileron?
- Increase drag on the up going wing.
- Decrease drag on the up going wing.
- Help pilot overcome aerodynamic loads.
Not correct answer. http://avstop.com/ac/flighttrainghandbook/differential.html:
The design of the aileron surface itself has also been improved by the "Frise type" aileron. With this type of aileron, when pressure on the control stick or wheel is applied to one side, raising one of the ailerons, the leading edge of that aileron (which has an offset hinge) projects down into the airflow and creates drag. This helps equalize the drag created by the lowered aileron on the opposite wing and thus reduces adverse yaw (Fig. 4-5).
An increase in aspect ratio will
- cause VbaseMD to be increased.
- cause induced drag to increase.
- cause VbaseMD to be reduced.
Hello. What is VbaseMD?
The type of fluid in an oleo strut will depend upon
- the type of seal material.
- heat generated in operation of the system.
- type of fluid most readily available.
i thought the answer to this question was type of seal material, does anyone know why its heat generated in operation as the type of fluid may break the seal down.
112.1 MHz is what frequency?
- UHF
- ILS
- VOR
i thought ILS has odd tenths,any assistance please.
112.1 MHz is what frequency?
- UHF
- ILS
- VOR
ILS has odd tenths
Compared with the flap down configuration the maximum angle of attack for the flaps up configuration is
- smaller.
- larger.
- unchanged.
Could please anyone explain this question?
A restrictor in the landing gear hydraulic retraction and lowering system is positioned in the
- landing gear down line.
- return line from the landing gear selector.
- landing gear up line.
Why? i though it will be positioned in the lowering line to damping landing gear extention due to aerodynamics loads.
When aligning an aircraft for a compass swing, the maximum allowable error is
- 1 degrees.
- 3 degrees.
- 5 degrees.
Why?
One lamp is connected across corresponding phases of two alternators. They will be synchronised when
- the lamp is extinguished.
- the lamp is either at maximum brightness or is extinguished.
- the lamp is maximum brightness.
hi, someone could explain me this question? tks
A radial is referenced
- from a beacon.
- to a VOR.
- on a compass.
Why isn't VOR ?