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AFAST-Helicopter Knowledge Section Questions
and Correct Answers/ Latest Update / Already Graded
A lighted heliport may be identified by
(A) a flashing yellow light.
(B) a blue lighted square landing area.
(C) white and red lights.
(D) a green, yellow, and white rotating beacon.
(E) blue and red alternating flashes.
Ans: The correct answer is (D). The color combination of
green, yellow, and white flashed by beacons indicates
a lighted heliport.
The primary purpose of the tail rotor system is to
(A) assist in making a coordinated turn.
(B) maintain heading during forward flight.
(C) counteract the torque effect of the main rotor.
(D) provide additional thrust and lift.
(E) increase maximum speed.
Ans: The correct answer is (C). The auxiliary or tail rotor
is the anti-torque rotor that produces thrust in the
direction opposite to the torque reaction developed by
the main rotor.
During a hover, a helicopter tends to drift in the
direction of tail rotor thrust. This movement is called
© 2025/ 2026 | ® All rights reserved
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(A) flapping.
(B) gyroscopic precession.
(C) transverse flow effect.
(D) translating tendency.
(E) Coriolis force.
Ans: The correct answer is (D). The entire helicopter has
a tendency to move in the direction of tail rotor thrust
when hovering. This movement is generally referred
to as translating tendency or drift.
The upward bending of the rotor blades resulting
from the combined forces of lift and centrifugal force
is known as
(A) translational lift.
(B) blade flapping.
(C) Coriolis effect.
(D) dissymmetry of lift.
(E) coning.
Ans: The correct answer is (E). The upward bending of
the rotor blades caused by the combined forces of lift
and centrifugal force is called coning.
In a helicopter, the center of gravity (CG) range is
usually located
© 2025/ 2026 | ® All rights reserved
AFAST-Helicopter Knowledge Section Questions
and Correct Answers/ Latest Update / Already Graded
A lighted heliport may be identified by
(A) a flashing yellow light.
(B) a blue lighted square landing area.
(C) white and red lights.
(D) a green, yellow, and white rotating beacon.
(E) blue and red alternating flashes.
Ans: The correct answer is (D). The color combination of
green, yellow, and white flashed by beacons indicates
a lighted heliport.
The primary purpose of the tail rotor system is to
(A) assist in making a coordinated turn.
(B) maintain heading during forward flight.
(C) counteract the torque effect of the main rotor.
(D) provide additional thrust and lift.
(E) increase maximum speed.
Ans: The correct answer is (C). The auxiliary or tail rotor
is the anti-torque rotor that produces thrust in the
direction opposite to the torque reaction developed by
the main rotor.
During a hover, a helicopter tends to drift in the
direction of tail rotor thrust. This movement is called
© 2025/ 2026 | ® All rights reserved
, 2 | Page
(A) flapping.
(B) gyroscopic precession.
(C) transverse flow effect.
(D) translating tendency.
(E) Coriolis force.
Ans: The correct answer is (D). The entire helicopter has
a tendency to move in the direction of tail rotor thrust
when hovering. This movement is generally referred
to as translating tendency or drift.
The upward bending of the rotor blades resulting
from the combined forces of lift and centrifugal force
is known as
(A) translational lift.
(B) blade flapping.
(C) Coriolis effect.
(D) dissymmetry of lift.
(E) coning.
Ans: The correct answer is (E). The upward bending of
the rotor blades caused by the combined forces of lift
and centrifugal force is called coning.
In a helicopter, the center of gravity (CG) range is
usually located
© 2025/ 2026 | ® All rights reserved
