SIFT Aviation Knowledge

Question 1

What are the four forces acting on an aircraft in flight?

Accepted Answer

Lift, weight, thrust, and drag

Answer

Push, pull, gravity, speed

Answer

Roll, pitch, yaw, and spin

Answer

Power, resistance, gravity, and wind

Question 2

What flight instrument indicates the aircraft's altitude above sea level?

Accepted Answer

Altimeter

Answer

Airspeed indicator

Answer

Attitude indicator

Answer

Vertical speed indicator

Question 3

What is the purpose of the cyclic control in a helicopter?

Accepted Answer

Controls the direction and speed of horizontal flight by tilting the rotor disk

Answer

Controls engine power

Answer

Controls the tail rotor

Answer

Controls altitude only

Question 4

What does VFR stand for in aviation?

Accepted Answer

Visual Flight Rules — flying by visual reference to the ground and landmarks

Answer

Very Fast Route

Answer

Variable Frequency Radio

Answer

Vertical Flight Regulation

Question 5

What is the purpose of the collective control in a helicopter?

Accepted Answer

Controls the overall pitch of all main rotor blades simultaneously to change altitude

Answer

Controls direction of flight

Answer

Controls the tail rotor

Answer

Controls communication systems

Question 6

What weather phenomenon is most dangerous for rotary-wing aircraft?

Accepted Answer

Icing conditions, which can change rotor blade aerodynamics and add weight

Answer

Light rain

Answer

Clear skies

Answer

Moderate winds