ATPL QUESTIONS EXAM 2025 |
GUARANTEED ACCURATE
ANSWERS
What are the forces acting on an aircraft in flight? - ACCURATE
ANSWERS✔✔ Drag. Thrust. Lift and Weight
What is direct lift control? - ACCURATE ANSWERS✔✔ The elevator /
stabilizer provide the direct lift control.
What are high lift devices? - ACCURATE ANSWERS✔✔ Trailing edge
flaps. Leading edge flaps. Slots
Define the two major types or Drag. - ACCURATE ANSWERS✔✔
Profile and induced drag which equals total drag
What are high drag devices? - ACCURATE ANSWERS✔✔ Trailing
edge flaps, spoilers, landing gear, revere thrust, braking parachute.
How do you prevent span-vise airflow on a wing especially swept wing?
- ACCURATE ANSWERS✔✔ Fences, vortex generators
What is the purpose vortex generators and fences? - ACCURATE
ANSWERS✔✔ To reduce spanwise airflow and thereby reduce its
effects
,What are winglets and how do they work? - ACCURATE
ANSWERS✔✔ Winglets are aerodynamically efficient surfaces located
at the wing tips. They are designed to reduce induced drag. They
dispense the spanwise airflow from the upper and lower surfaces at
different points.
How does a forward center of gravity affect the stall speed? -
ACCURATE ANSWERS✔✔ A center of gravity forward of the center
of pressure will cause a higher stall speed
What advantages does an aircraft gain from a swept swing? -
ACCURATE ANSWERS✔✔ High mach cruise speeds, stability in
turbulence.
Where does a swept wing stall first? - ACCURATE ANSWERS✔✔ A
simple swept or tapered wing will stall at the wing tip first.
Explain speed stability. - ACCURATE ANSWERS✔✔ It's the behavior
of the speed after a disturbance at a fixed power setting
What is Mach Number - ACCURATE ANSWERS✔✔ Mach number is
a true airspeed indication, given as a percentage relative to the local
speed of sound.
,What is the critical Mach number (mcrit)? - ACCURATE
ANSWERS✔✔ Mcrit is the aircraft's mach speed at which the airflow
over a wing becomes sonic.
What is Mach tuck? - ACCURATE ANSWERS✔✔ Is the nose down
pitching moment an aircraft experiences as it passes it's critical mach
number
What is the purpose of a mach trimmer? - ACCURATE ANSWERS✔✔
A Mach trimmer is to automatically compensate for Mach tuck above
Mcrit.
What are the affects of compressibility? - ACCURATE ANSWERS✔✔
The effect of air being compressed onto a surface resulting in an increase
in density and thus dynamic pressure rises above its expected value.
What changes the aircrafts angle of attack at the stall? - ACCURATE
ANSWERS✔✔ The movement of the center of pressure point at the
stall causes a change in the aircraft's angle of attack
What happens to the stall speed at very high altitudes? - ACCURATE
ANSWERS✔✔ Mach number compressibility effect on the wing results
in a higher EAS (actual equivalent airspeed), compressibility error on
the IAS increases the stall speed
What is super stall? - ACCURATE ANSWERS✔✔ Is a stall from which
the aircraft is unable to recover.
, What is Dutch roll? - ACCURATE ANSWERS✔✔ Dutch roll is an
oscillatory Instability. It is the combination of yawing and rolling
motions
What causes Dutch roll? - ACCURATE ANSWERS✔✔ Swept wings
What is the three purposes of spoilers? - ACCURATE ANSWERS✔✔
Roll control, Air speed brakes, and ground lift dumpers
What our Krueger flaps? - ACCURATE ANSWERS✔✔ Krueger flaps
are leading edge wing flaps used to increase the wing chamber
How do flap affect takeoff ground run? - ACCURATE ANSWERS✔✔ A
higher flap within the take off range, will reduce the takeoff' ground run
for a given aircraft weight.
What's the purpose is of yaw and roll dampers? - ACCURATE
ANSWERS✔✔ To prevent Dutch roll and coordinate turns
What are the four reasons for a variable-incident tailplane / stabilizer? -
ACCURATE ANSWERS✔✔ Provide a balancing force for a large C of
G range, cope with large trim changes. Provide balancing force for a
large speed range, reduce elevator trim drag.
GUARANTEED ACCURATE
ANSWERS
What are the forces acting on an aircraft in flight? - ACCURATE
ANSWERS✔✔ Drag. Thrust. Lift and Weight
What is direct lift control? - ACCURATE ANSWERS✔✔ The elevator /
stabilizer provide the direct lift control.
What are high lift devices? - ACCURATE ANSWERS✔✔ Trailing edge
flaps. Leading edge flaps. Slots
Define the two major types or Drag. - ACCURATE ANSWERS✔✔
Profile and induced drag which equals total drag
What are high drag devices? - ACCURATE ANSWERS✔✔ Trailing
edge flaps, spoilers, landing gear, revere thrust, braking parachute.
How do you prevent span-vise airflow on a wing especially swept wing?
- ACCURATE ANSWERS✔✔ Fences, vortex generators
What is the purpose vortex generators and fences? - ACCURATE
ANSWERS✔✔ To reduce spanwise airflow and thereby reduce its
effects
,What are winglets and how do they work? - ACCURATE
ANSWERS✔✔ Winglets are aerodynamically efficient surfaces located
at the wing tips. They are designed to reduce induced drag. They
dispense the spanwise airflow from the upper and lower surfaces at
different points.
How does a forward center of gravity affect the stall speed? -
ACCURATE ANSWERS✔✔ A center of gravity forward of the center
of pressure will cause a higher stall speed
What advantages does an aircraft gain from a swept swing? -
ACCURATE ANSWERS✔✔ High mach cruise speeds, stability in
turbulence.
Where does a swept wing stall first? - ACCURATE ANSWERS✔✔ A
simple swept or tapered wing will stall at the wing tip first.
Explain speed stability. - ACCURATE ANSWERS✔✔ It's the behavior
of the speed after a disturbance at a fixed power setting
What is Mach Number - ACCURATE ANSWERS✔✔ Mach number is
a true airspeed indication, given as a percentage relative to the local
speed of sound.
,What is the critical Mach number (mcrit)? - ACCURATE
ANSWERS✔✔ Mcrit is the aircraft's mach speed at which the airflow
over a wing becomes sonic.
What is Mach tuck? - ACCURATE ANSWERS✔✔ Is the nose down
pitching moment an aircraft experiences as it passes it's critical mach
number
What is the purpose of a mach trimmer? - ACCURATE ANSWERS✔✔
A Mach trimmer is to automatically compensate for Mach tuck above
Mcrit.
What are the affects of compressibility? - ACCURATE ANSWERS✔✔
The effect of air being compressed onto a surface resulting in an increase
in density and thus dynamic pressure rises above its expected value.
What changes the aircrafts angle of attack at the stall? - ACCURATE
ANSWERS✔✔ The movement of the center of pressure point at the
stall causes a change in the aircraft's angle of attack
What happens to the stall speed at very high altitudes? - ACCURATE
ANSWERS✔✔ Mach number compressibility effect on the wing results
in a higher EAS (actual equivalent airspeed), compressibility error on
the IAS increases the stall speed
What is super stall? - ACCURATE ANSWERS✔✔ Is a stall from which
the aircraft is unable to recover.
, What is Dutch roll? - ACCURATE ANSWERS✔✔ Dutch roll is an
oscillatory Instability. It is the combination of yawing and rolling
motions
What causes Dutch roll? - ACCURATE ANSWERS✔✔ Swept wings
What is the three purposes of spoilers? - ACCURATE ANSWERS✔✔
Roll control, Air speed brakes, and ground lift dumpers
What our Krueger flaps? - ACCURATE ANSWERS✔✔ Krueger flaps
are leading edge wing flaps used to increase the wing chamber
How do flap affect takeoff ground run? - ACCURATE ANSWERS✔✔ A
higher flap within the take off range, will reduce the takeoff' ground run
for a given aircraft weight.
What's the purpose is of yaw and roll dampers? - ACCURATE
ANSWERS✔✔ To prevent Dutch roll and coordinate turns
What are the four reasons for a variable-incident tailplane / stabilizer? -
ACCURATE ANSWERS✔✔ Provide a balancing force for a large C of
G range, cope with large trim changes. Provide balancing force for a
large speed range, reduce elevator trim drag.
