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SIFT AVIATION EXAM QUESTIONS WITH ANSWERS
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SIFT AVIATION EXAM QUESTIONS WITHANSWERS
What is the primary method of ground movement for helicopters on airports?
ANSWER: air taxi
What sort of helicopter design uses a ducted fan instead of a tail rotor to
neutralize the torque effect?
How might high-density altitude influence the performance of a helicopter?
Performance would drop due to the low value of air density.
Which pitot-static instrument uses both pitot and static pressure? - ANSWER:
airspeed indicator
What effect does celiac control have on the rotor system? It adjusts the pitch of
the primary rotor blades individually and cynically.
AOA stands for ANSWER ANGLE OF ATTACK, and the airfoil chord line
and the resulting relative wins
What is the key principle to counterbalance the main rotor torque with
NOTAR? ANSWER: coanda effect.
The type of drag created by lift is induced drag.
What are the four elements of risk management? ANSWER: pilot, aircraft,
environment, and external pressures.
What three circumstances are required for a helicopter to be in danger of a
dynamic rollover? Answer: pivot point, rolling motion, and exceeding critical
angle.
What are the three areas of a rotor in autorotation? Answer: driven, driving, and
stall.
, What is the resultant relative wind - Induced flow modifies the rotational
relative wind
Bernoulli's Principle - ANSWER: As a fluid's velocity increases, its pressure
falls.
This is true for helicopter performance in ground effect (IGE). - ANSWER The
rotor system becomes more efficient since the ground interiors with the
circulation pattern, and less oiler is required to hover.
Which phrase is used to represent the weight of an airplane, including all
hydraulic and oil systems, full, trapped, and useless fuel, and all fixed
equipment - ANSWER basic weight or basic empty weight?
What aerodynamic condition can arise when a helicopter is descending at more
than 300 fpm, has 20 to 100 percent power, and an airspeed lower than effective
translational lift? - ANSWER compromising for power
How does a pilot notice the commencement of the transverse flow effect? -
ANSWER: During takeoff, a vibration and a right rolling motion occur when
the aircraft accelerates through 10 to 20 knots.
To convert true north to magnetic north when flying eastbound, what
adjustment must a pilot apply to the magnetic compass? The answer is to add 15
degrees.
As air gets less dense, the following force change occurs: a fall in power at the
engine intakes.
When an airplane approaches landing, the leading and trailing edges of its flaps
are extended to provide the following forces: maximum lift and high drag.
If there is no increase in thrust, which action would result in an ultimate stall?
ANSWER: rising pitch
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