SIFT (Selection Instrument for Flight Training)
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1. What is the primary purpose of an aircraft’s rudder?
a) Increase lift
b) Control roll
c) Control yaw
d) Control pitch
The rudder controls yaw, which is the left or right movement of the aircraft’s nose
around the vertical axis.
2. In aviation, “AOA” stands for:
a) Air Output Adjustment
b) Angle of Attack
c) Altitude Orientation Angle
d) Airflow Orientation Adjustment
AOA is the angle between the wing’s chord line and the relative wind, critical for lift
generation.
3. What is the minimum number of crew members required to safely operate a single-
pilot certified aircraft?
a) Two
b) None
c) One
d) Three
Single-pilot certified aircraft can be operated safely by only one pilot.
4. Bernoulli’s principle explains:
a) The role of gravity in descent
b) The effect of torque on yaw
c) How faster airflow over a wing creates lower pressure
d) The way the rudder functions
, Bernoulli’s principle helps explain lift by relating airflow speed to pressure changes
over the wing.
5. Which control surface is primarily responsible for roll?
a) Rudder
b) Elevator
c) Ailerons
d) Flaps
Ailerons control roll around the aircraft’s longitudinal axis.
6. A helicopter’s cyclic control:
a) Changes the collective pitch of all blades
b) Changes the pitch of individual blades during rotation
c) Alters tail rotor thrust
d) Controls yaw
The cyclic alters blade pitch individually as the rotor rotates, controlling pitch and roll.
7. What is the function of the collective in a helicopter?
a) Control yaw
b) Change overall rotor blade pitch
c) Control roll
d) Adjust rudder effectiveness
The collective changes the pitch of all blades simultaneously to control altitude and
thrust.
8. Which instrument shows the aircraft’s bank angle?
a) Altimeter
b) Attitude indicator
c) Vertical speed indicator
d) Heading indicator
The attitude indicator shows bank (roll) and pitch relative to the horizon.
9. A stall occurs when:
a) The engine fails
b) The critical angle of attack is exceeded
c) The rudder is overused
d) The elevator malfunctions
Stalls are aerodynamic, not engine failures, and occur when AOA is too high for
smooth airflow.
10. What does the vertical stabilizer do?
a) Creates lift
b) Controls roll
c) Controls pitch
, d) Provides yaw stability
The vertical stabilizer prevents unwanted yaw and improves directional stability.
11. Increasing the camber of a wing generally:
a) Reduces lift
b) Increases lift
c) Reduces drag
d) Increases stall speed
Greater camber usually increases lift due to greater pressure differential.
12. Flaps are extended primarily to:
a) Reduce yaw
b) Reduce roll
c) Increase stall speed
d) Increase lift and drag
Flaps increase both lift and drag, allowing slower, safer landings.
13. When an aircraft is banked in coordinated flight, the lift vector:
a) Points straight upward
b) Tilts, providing both vertical and horizontal components
c) Points downward
d) Remains horizontal
Banking tilts the lift vector, creating a horizontal component for turning.
14. In helicopter flight, “translational lift” occurs when:
a) The tail rotor fails
b) Collective pitch is decreased
c) The helicopter gains forward airspeed
d) The cyclic is pulled aft
Forward motion improves rotor efficiency, creating translational lift.
15. A higher aspect ratio wing (longer and narrower) generally:
a) Produces less lift
b) Produces less induced drag
c) Increases stall speed
d) Reduces glide efficiency
High aspect ratio reduces induced drag and increases efficiency.
16. Which axis runs from nose to tail?
a) Vertical axis
b) Longitudinal axis
c) Lateral axis
Exam With Actual Questions,Rationales And
Verified Answers/Expert Verified For
Guaranteed Pass2025/2026 /Latest
Update/Instant Download Pdf
1. What is the primary purpose of an aircraft’s rudder?
a) Increase lift
b) Control roll
c) Control yaw
d) Control pitch
The rudder controls yaw, which is the left or right movement of the aircraft’s nose
around the vertical axis.
2. In aviation, “AOA” stands for:
a) Air Output Adjustment
b) Angle of Attack
c) Altitude Orientation Angle
d) Airflow Orientation Adjustment
AOA is the angle between the wing’s chord line and the relative wind, critical for lift
generation.
3. What is the minimum number of crew members required to safely operate a single-
pilot certified aircraft?
a) Two
b) None
c) One
d) Three
Single-pilot certified aircraft can be operated safely by only one pilot.
4. Bernoulli’s principle explains:
a) The role of gravity in descent
b) The effect of torque on yaw
c) How faster airflow over a wing creates lower pressure
d) The way the rudder functions
, Bernoulli’s principle helps explain lift by relating airflow speed to pressure changes
over the wing.
5. Which control surface is primarily responsible for roll?
a) Rudder
b) Elevator
c) Ailerons
d) Flaps
Ailerons control roll around the aircraft’s longitudinal axis.
6. A helicopter’s cyclic control:
a) Changes the collective pitch of all blades
b) Changes the pitch of individual blades during rotation
c) Alters tail rotor thrust
d) Controls yaw
The cyclic alters blade pitch individually as the rotor rotates, controlling pitch and roll.
7. What is the function of the collective in a helicopter?
a) Control yaw
b) Change overall rotor blade pitch
c) Control roll
d) Adjust rudder effectiveness
The collective changes the pitch of all blades simultaneously to control altitude and
thrust.
8. Which instrument shows the aircraft’s bank angle?
a) Altimeter
b) Attitude indicator
c) Vertical speed indicator
d) Heading indicator
The attitude indicator shows bank (roll) and pitch relative to the horizon.
9. A stall occurs when:
a) The engine fails
b) The critical angle of attack is exceeded
c) The rudder is overused
d) The elevator malfunctions
Stalls are aerodynamic, not engine failures, and occur when AOA is too high for
smooth airflow.
10. What does the vertical stabilizer do?
a) Creates lift
b) Controls roll
c) Controls pitch
, d) Provides yaw stability
The vertical stabilizer prevents unwanted yaw and improves directional stability.
11. Increasing the camber of a wing generally:
a) Reduces lift
b) Increases lift
c) Reduces drag
d) Increases stall speed
Greater camber usually increases lift due to greater pressure differential.
12. Flaps are extended primarily to:
a) Reduce yaw
b) Reduce roll
c) Increase stall speed
d) Increase lift and drag
Flaps increase both lift and drag, allowing slower, safer landings.
13. When an aircraft is banked in coordinated flight, the lift vector:
a) Points straight upward
b) Tilts, providing both vertical and horizontal components
c) Points downward
d) Remains horizontal
Banking tilts the lift vector, creating a horizontal component for turning.
14. In helicopter flight, “translational lift” occurs when:
a) The tail rotor fails
b) Collective pitch is decreased
c) The helicopter gains forward airspeed
d) The cyclic is pulled aft
Forward motion improves rotor efficiency, creating translational lift.
15. A higher aspect ratio wing (longer and narrower) generally:
a) Produces less lift
b) Produces less induced drag
c) Increases stall speed
d) Reduces glide efficiency
High aspect ratio reduces induced drag and increases efficiency.
16. Which axis runs from nose to tail?
a) Vertical axis
b) Longitudinal axis
c) Lateral axis
