SIFT Army aviation knowledge Exam Questions and Answers |100% Pass
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Course
SIFT
Institution
SIFT
SIFT Army aviation knowledge Exam
Questions and Answers |100% Pass
______ is the reduction in fluid pressure that results when a fluid flows through a constricted section (or
choke) of a pipe. - Answer-The Venturi Effect
Cyclic Control is - Answer-used to control the direction or tilt of aircra...
What is the primary principle to counteract the main rotor torque with NOTAR? - Answer✔✔-Coanda
effect
What are the four elements of risk management? - Answer✔✔-pilot, aircraft, environment, and external
pressures
What is the preferred method of ground movement for a helicopter on airports? - Answer✔✔-Air Taxi
Helicopter's experience effective translational lift while transitioning to forward flight at approximately
_____ to _____ knots - Answer✔✔-16, 24
When a helicopter is descending at more than 300 fpm, has 20 to 100 percent power, and an airspeed
less than effective translational lift, what aerodynamic condition can occur? - Answer✔✔-Settling with
power
Driven Region - Answer✔✔-Has the effect of slowing the rotor's spin.
Driving Region - Answer✔✔-Supply's thrust.
While transitioning to forward flight at about 16 to 24 knots, the helicopter goes through - Answer✔✔-
Effective Translational Lift
When a force is applied to one side of a spinning object, an action occurs approximately 90° in the
direction of rotation from the point where the force is applied. The action is called - Answer✔✔-
gyroscopic precession
When the helicopter is in the state of hover - Answer✔✔-the resultant lift is exactly equal to the weight
Induced Flow or Downwash is - Answer✔✔-the flow of air going down through the rotors
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