Army Aviation Aptitude Selection Test
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1. A helicopter maintains a constant altitude but increases its
forward speed. What primarily changes in terms of aerodynamic
forces?
A. Lift decreases while drag increases
B. Lift increases while drag decreases
C. Lift remains constant while drag increases
D. Both lift and drag remain constant
Answer: A
Rationale: As forward speed increases, parasitic drag increases
significantly due to greater air resistance. If rotor thrust is not
adjusted, effective lift margin can reduce relative to required
equilibrium, especially if power is unchanged, making lift effectively
decrease relative to demand while drag increases.
, 2. What is the primary purpose of a helicopter tail rotor?
A. Increase lift
B. Provide forward thrust
C. Counteract main rotor torque
D. Reduce engine fuel consumption
Answer: C
Rationale: The tail rotor counters the torque produced by the main
rotor, preventing the fuselage from spinning in the opposite direction
of the rotor blades.
3. If an aircraft flies from an area of high pressure to low pressure at
constant altitude, what is most likely to occur?
A. Airspeed decreases
B. Air density decreases
C. Engine power increases automatically
D. Lift becomes zero
Answer: B
,Rationale: Lower atmospheric pressure corresponds to lower air
density, which reduces lift and engine performance if not
compensated.
4. What is the main function of an aircraft attitude indicator?
A. Shows engine RPM
B. Displays aircraft orientation relative to the horizon
C. Measures airspeed
D. Calculates fuel consumption
Answer: B
Rationale: The attitude indicator shows pitch and roll relative to the
artificial horizon, essential for spatial orientation, especially in poor
visibility.
5. Which force opposes thrust in level flight?
A. Weight
B. Lift
C. Drag
D. Gravity
, Answer: C
Rationale: Drag is the aerodynamic force opposing thrust and acts
parallel to airflow in the opposite direction.
6. If wind is blowing from the north at 20 knots and an aircraft flies
east at 100 knots, what is the resulting effect?
A. Headwind only
B. Crosswind only
C. Tailwind only
D. No wind effect
Answer: B
Rationale: Wind from the north at right angles to eastward flight
creates a crosswind component affecting drift.
7. What is the function of cyclic control in a helicopter?
A. Controls engine power
B. Changes rotor blade pitch collectively
C. Controls directional tilt of rotor disc
D. Controls tail rotor speed
Questions With Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. A helicopter maintains a constant altitude but increases its
forward speed. What primarily changes in terms of aerodynamic
forces?
A. Lift decreases while drag increases
B. Lift increases while drag decreases
C. Lift remains constant while drag increases
D. Both lift and drag remain constant
Answer: A
Rationale: As forward speed increases, parasitic drag increases
significantly due to greater air resistance. If rotor thrust is not
adjusted, effective lift margin can reduce relative to required
equilibrium, especially if power is unchanged, making lift effectively
decrease relative to demand while drag increases.
, 2. What is the primary purpose of a helicopter tail rotor?
A. Increase lift
B. Provide forward thrust
C. Counteract main rotor torque
D. Reduce engine fuel consumption
Answer: C
Rationale: The tail rotor counters the torque produced by the main
rotor, preventing the fuselage from spinning in the opposite direction
of the rotor blades.
3. If an aircraft flies from an area of high pressure to low pressure at
constant altitude, what is most likely to occur?
A. Airspeed decreases
B. Air density decreases
C. Engine power increases automatically
D. Lift becomes zero
Answer: B
,Rationale: Lower atmospheric pressure corresponds to lower air
density, which reduces lift and engine performance if not
compensated.
4. What is the main function of an aircraft attitude indicator?
A. Shows engine RPM
B. Displays aircraft orientation relative to the horizon
C. Measures airspeed
D. Calculates fuel consumption
Answer: B
Rationale: The attitude indicator shows pitch and roll relative to the
artificial horizon, essential for spatial orientation, especially in poor
visibility.
5. Which force opposes thrust in level flight?
A. Weight
B. Lift
C. Drag
D. Gravity
, Answer: C
Rationale: Drag is the aerodynamic force opposing thrust and acts
parallel to airflow in the opposite direction.
6. If wind is blowing from the north at 20 knots and an aircraft flies
east at 100 knots, what is the resulting effect?
A. Headwind only
B. Crosswind only
C. Tailwind only
D. No wind effect
Answer: B
Rationale: Wind from the north at right angles to eastward flight
creates a crosswind component affecting drift.
7. What is the function of cyclic control in a helicopter?
A. Controls engine power
B. Changes rotor blade pitch collectively
C. Controls directional tilt of rotor disc
D. Controls tail rotor speed
