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Exam (elaborations)

SIFT Q & A

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  • August 26, 2024
  • 49
  • 2024/2025
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144 Multiple choice questions

Definition 1 of 144
The Collective (Control)

What airspeed is shown uncorrected for instrument or system errors?

The flow of air in relation to the rotor blades.

Either the rotor blades themselves or the horizontal stabilizers.

Left side of the pilot, moves up and down. Alters angle of attack of rotor blades

Term 2 of 144
What color flashing beacons indicate a lighted heliport?

green, yellow, and white

indicated, calibrated, equivalent, true

inertia, acceleration, action/reaction

make the helicopter uncontrollable

Term 3 of 144
A heading on the compass indicating "6" means how many degrees?

induced drag


330

Coriolis Effect


60

,Term 4 of 144
What is the temporary condition of stall in helicopters called?

drop

coning


skijoring


mushing

Term 5 of 144
What type of drag is incurred from the frictional resistance of the blades passing through the air?

anti-torque pedals


induced drag

parasite drag

profile drag

Term 6 of 144
For helicopters with a main rotor disk that spins counter-clockwise, the maximum airflow speed
happens when each blade reaches what position?

9 o'clock position

12​o'clock position


3 o'clock position

12 o'clock position

,Term 7 of 144
Newton's third law of motion applies to helicopters because

Newton's third law only applies to cars

Helicopters are powered by solar energy

The helicopter's main rotor creates lift


The spinning main rotor makes the aircraft try to spin in the direction opposite to it
(equal/opposite action/reaction)

Term 8 of 144
What is the primary means for compensating for dissymmetry of lift?

feathering


coning

flapping

gyroscopic precession

Term 9 of 144
What controls starting, stopping, and the rate of speed?

throttle


collective feathering

collective pitch

cyclic pitch control

, Term 10 of 144
What altitude is measured as the height above the 29.92-inches-of-mercury pressure level?

density altitude

absolute altitude

indicated altitude


pressure altitude

Term 11 of 144
What altimeter measures the altitude above ground/terrain by measuring the time between
transmitting a radio signal from the aircraft to the ground and receiving its return?

radar altimeter / absolute altimeter

attitude indicator

autorotation

one rotor diameter

Term 12 of 144
Cushion of air between helicopter and ground is gone so more power is needed to hover/move
up.

Out of Ground Effect

Ground Resonance

Coriolis Effect

Induced Flow

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