ATPL question bank
Which aeroplane behavior will be corrected by a yaw damper?
Spiral dive.
Buffeting.
Dutch roll.
Tuck under. - answer Dutch Roll
One disadvantage of the swept back wing is it's stalling characteristics. At the stall:
wing root stall will occur first, which produces a rolling moment
tip stall will occur first, which produces a nose-down moment
leading edge stall will occur first, which produces a nose-down moment
tip stall will occur first, which produces a pitch-up moment - answertip stall will occur
first, which produces a pitch-up moment
lf an aeroplane flies in the ground effect
the lift is increased and the drag is decreased
the effective angle of attack is decreased.
the induced angle of attack is increased.
drag and lift are reduced. - answerthe lift is increase and the drag is decreased
Compared with stalling airspeed (VS) in a given configuration, the airspeed at which
stick shaker will be.
1.30 VS.
1.12 VS.
greater than VS.
1.20 VS. - answerGreater than VS
Which one of the following systems suppresses the tendency to "Dutch roll"?
Rudder limiter.
Yaw damper.
Roll spoilers.
Spoiler mixer. - answerYaw Damper
The high speed buffet is induced by
boundary layer separation due to shock waves.
boundary layer control.
expansion waves on the wing upper side.
a shift of the center of gravity. - answerboundary layer separation due to shock waves
When "spoilers" are used as speed brakes:
CLmax of the polar curve is not affected.
they do not affect wheel braking action during landing
,at same angle of attack, CL remains unaffected.
at same angle of attack, CD is increased and CL is decreased - answerat same AoA,
CD is increased and CL is decreased
What factors determine the distance travelled over the ground of an aeroplane in a glide
?
The wind and the aeroplane's mass
The wind and CLmax
The wind and weight together with power loading, which is the ratio of power output to
the weight
The wind and the lift/drag ratio, which changes with angle of attack - answerThe wind
and the L/D ratio, which changes the AoA
The center of gravity moving aft will :
increase the elevator up effectiveness.
decrease the elevator up effectiveness.
not affect the elevator up or down effectiveness.
increase or decrease the elevator up effectiveness, depending on wing location. -
answerincrease the elevator up effectiveness
Which of the following statements about stall speed is correct ?
Decreasing the angle of sweep of the wing will decrease the stall speed.
Increasing the angle of sweep of the wing will decrease the stall speed.
Use of a T-tail will decrease the stall speed.
Increasing the anhedral of the wing will decrease the stall speed. - answerDecreasing
the angle of sweep of the wing will decrease the stall speed
The flight Mach number is 0.8 and the TAS is 400 kts. The speed of sound is:
500 kts
320 kts
480 kts
600 kts - answer500kts M= v/c > v/M=c 400/.8=500
When the trailing edge flaps are deflected in level flight, the change in pitch moment will
be:
nose up.
zero.
dependent on c.g. location.
nose down. - answernose down
Which Statement with respect to the climb is correct ?
At constant Mach number the lAS increases
At constant TAS the mach number decreases
At constant lAS the mach number increases
At constant lAS the TAS decreases - answerAt constant IAS the Mach number
increases
,The stalling speed in lAS will change according to the following factors:
Will increase during turn, increased mass and an aft c.g. location
Will decrease with a forward c.g. location, lower altitude and due to the slip stream from
a propeller on an
engine located forward of the wing
Will increase with increased load factor, icing conditions and more flaps
May increase during turbulence and will always increase when banking in a turn -
answerMay increase during turbulence and will always increase when banking in a turn
A jet transport aeroplane is in a straight climb at a constant IAS and constant weight.
The operational limit
that may be exceeded is:
MD
MMO
VMO
VA - answerMMO
A jet aeroplane is rolled into a turn, while maintaining airspeed and holding altitude. In
such a case, the
pilot has to:
increase angle of attack and keep thrust unchanged.
increase thrust and angle of attack.
increase thrust and keep angle of attack unchanged.
increase thrust and decrease angle of attack. - answerIncrease thrust and AoA
After take-off the slats are always retracted later than the flaps. Why ?
Because FLAPS EXTENDED gives a large decrease in stall speed with relatively less
drag.
Because SLATS EXTENDED gives a large decrease in stall speed with relatively less
drag.
Because SLATS EXTENDED provides a better view from the cockpit than FLAPS
EXTENDED.
Because VMCA with SLATS EXTENDED is more favourable compared to the FLAPS
EXTENDED - answerBecause SLATS EXTENDED gives a large decrease in stall
speed with relatively less drag
What increases the stalling angle of attack ? Use of :
flaps
spoilers
fuselage mounted speed-brakes
slats - answerslats
The trailing edge flaps when extended :
significantly increase the angle of attack for maximum lift
significantly lower the drag
, worsen the best angle of glide
increase the zero lift angle of attack - answerworsen the best angle of glide
Ground effect has the following influence on the landing distance:
decreases.
does not change.
increases, only if the landing flaps are fully extended.
increases. - answerincreases
A light twin is in a turn at 20 degrees bank and 150 kt TAS. A more heavy jet aeroplane
at the same bank and the same speed will:
turn at a higher turn rate
turn at the same turn radius.
turn at a bigger turn radius.
turn at a smaller turn radius. - answerTurn at the same turn radius
A commercial jet aeroplane is performing a straight descent at a constant Mach Number
with constant
weight. The operational limit that may be exceeded is:
VNE.
VD.
MMO.
VMO. - answerVMO
Why is VMCG determined with the nose wheel steering disconnected?
Because nose wheel steering has no effect on the value of VMCG.
Because the value of VMCG must also be applicable on wet and/or slippery runways.
Because the nose wheel steering could become inoperative after an engine has failed.
Because it must be possible to abort the take-off even after the nose wheel has already
been lifted off the
ground. - answerBecause the value of VMCG must also be applicable on were and/or
slippery runways
Climbing at a constant Mach Number up to FL 350 the TAS will:
remain constant.
decrease.
first increase, then decrease.
increase. - answerdecrease
Winglets
decrease the induced drag.
decrease the static lateral stability.
increase the manoeuvrability.
create an elliptical lift distribution. - answerDecrease the induced drag
The boundary layer of a wing is caused by:
Which aeroplane behavior will be corrected by a yaw damper?
Spiral dive.
Buffeting.
Dutch roll.
Tuck under. - answer Dutch Roll
One disadvantage of the swept back wing is it's stalling characteristics. At the stall:
wing root stall will occur first, which produces a rolling moment
tip stall will occur first, which produces a nose-down moment
leading edge stall will occur first, which produces a nose-down moment
tip stall will occur first, which produces a pitch-up moment - answertip stall will occur
first, which produces a pitch-up moment
lf an aeroplane flies in the ground effect
the lift is increased and the drag is decreased
the effective angle of attack is decreased.
the induced angle of attack is increased.
drag and lift are reduced. - answerthe lift is increase and the drag is decreased
Compared with stalling airspeed (VS) in a given configuration, the airspeed at which
stick shaker will be.
1.30 VS.
1.12 VS.
greater than VS.
1.20 VS. - answerGreater than VS
Which one of the following systems suppresses the tendency to "Dutch roll"?
Rudder limiter.
Yaw damper.
Roll spoilers.
Spoiler mixer. - answerYaw Damper
The high speed buffet is induced by
boundary layer separation due to shock waves.
boundary layer control.
expansion waves on the wing upper side.
a shift of the center of gravity. - answerboundary layer separation due to shock waves
When "spoilers" are used as speed brakes:
CLmax of the polar curve is not affected.
they do not affect wheel braking action during landing
,at same angle of attack, CL remains unaffected.
at same angle of attack, CD is increased and CL is decreased - answerat same AoA,
CD is increased and CL is decreased
What factors determine the distance travelled over the ground of an aeroplane in a glide
?
The wind and the aeroplane's mass
The wind and CLmax
The wind and weight together with power loading, which is the ratio of power output to
the weight
The wind and the lift/drag ratio, which changes with angle of attack - answerThe wind
and the L/D ratio, which changes the AoA
The center of gravity moving aft will :
increase the elevator up effectiveness.
decrease the elevator up effectiveness.
not affect the elevator up or down effectiveness.
increase or decrease the elevator up effectiveness, depending on wing location. -
answerincrease the elevator up effectiveness
Which of the following statements about stall speed is correct ?
Decreasing the angle of sweep of the wing will decrease the stall speed.
Increasing the angle of sweep of the wing will decrease the stall speed.
Use of a T-tail will decrease the stall speed.
Increasing the anhedral of the wing will decrease the stall speed. - answerDecreasing
the angle of sweep of the wing will decrease the stall speed
The flight Mach number is 0.8 and the TAS is 400 kts. The speed of sound is:
500 kts
320 kts
480 kts
600 kts - answer500kts M= v/c > v/M=c 400/.8=500
When the trailing edge flaps are deflected in level flight, the change in pitch moment will
be:
nose up.
zero.
dependent on c.g. location.
nose down. - answernose down
Which Statement with respect to the climb is correct ?
At constant Mach number the lAS increases
At constant TAS the mach number decreases
At constant lAS the mach number increases
At constant lAS the TAS decreases - answerAt constant IAS the Mach number
increases
,The stalling speed in lAS will change according to the following factors:
Will increase during turn, increased mass and an aft c.g. location
Will decrease with a forward c.g. location, lower altitude and due to the slip stream from
a propeller on an
engine located forward of the wing
Will increase with increased load factor, icing conditions and more flaps
May increase during turbulence and will always increase when banking in a turn -
answerMay increase during turbulence and will always increase when banking in a turn
A jet transport aeroplane is in a straight climb at a constant IAS and constant weight.
The operational limit
that may be exceeded is:
MD
MMO
VMO
VA - answerMMO
A jet aeroplane is rolled into a turn, while maintaining airspeed and holding altitude. In
such a case, the
pilot has to:
increase angle of attack and keep thrust unchanged.
increase thrust and angle of attack.
increase thrust and keep angle of attack unchanged.
increase thrust and decrease angle of attack. - answerIncrease thrust and AoA
After take-off the slats are always retracted later than the flaps. Why ?
Because FLAPS EXTENDED gives a large decrease in stall speed with relatively less
drag.
Because SLATS EXTENDED gives a large decrease in stall speed with relatively less
drag.
Because SLATS EXTENDED provides a better view from the cockpit than FLAPS
EXTENDED.
Because VMCA with SLATS EXTENDED is more favourable compared to the FLAPS
EXTENDED - answerBecause SLATS EXTENDED gives a large decrease in stall
speed with relatively less drag
What increases the stalling angle of attack ? Use of :
flaps
spoilers
fuselage mounted speed-brakes
slats - answerslats
The trailing edge flaps when extended :
significantly increase the angle of attack for maximum lift
significantly lower the drag
, worsen the best angle of glide
increase the zero lift angle of attack - answerworsen the best angle of glide
Ground effect has the following influence on the landing distance:
decreases.
does not change.
increases, only if the landing flaps are fully extended.
increases. - answerincreases
A light twin is in a turn at 20 degrees bank and 150 kt TAS. A more heavy jet aeroplane
at the same bank and the same speed will:
turn at a higher turn rate
turn at the same turn radius.
turn at a bigger turn radius.
turn at a smaller turn radius. - answerTurn at the same turn radius
A commercial jet aeroplane is performing a straight descent at a constant Mach Number
with constant
weight. The operational limit that may be exceeded is:
VNE.
VD.
MMO.
VMO. - answerVMO
Why is VMCG determined with the nose wheel steering disconnected?
Because nose wheel steering has no effect on the value of VMCG.
Because the value of VMCG must also be applicable on wet and/or slippery runways.
Because the nose wheel steering could become inoperative after an engine has failed.
Because it must be possible to abort the take-off even after the nose wheel has already
been lifted off the
ground. - answerBecause the value of VMCG must also be applicable on were and/or
slippery runways
Climbing at a constant Mach Number up to FL 350 the TAS will:
remain constant.
decrease.
first increase, then decrease.
increase. - answerdecrease
Winglets
decrease the induced drag.
decrease the static lateral stability.
increase the manoeuvrability.
create an elliptical lift distribution. - answerDecrease the induced drag
The boundary layer of a wing is caused by:
