SIFT Complete Aviation Knowledge Exam
Questions With Correct Answers
What part of a rotary-wing aircraft makes directional control possible? - CORRECT
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ANSWER✔✔-The swashplate |
What is the preferred method of ground movement for helicopters on airports? -
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CORRECT ANSWER✔✔-Air taxi | |
What type of helicopter design uses a ducted fan in place of a tail rotor to cancel
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torque effect? - CORRECT ANSWER✔✔-The NOTAR design
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Which aerodynamic force(s) must a rotary-wing aircraft balance in order to
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hover? - CORRECT ANSWER✔✔-Weight, lift, thrust, and drag
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How would a high-density altitude affect the performance of a helicopter? -
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CORRECT ANSWER✔✔-Performance would be decreased due to low value of the
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air density
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Which pilot-static instrument makes use of both pitot and static pressure? -
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CORRECT ANSWER✔✔-Airspeed indicator
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What effect does the cyclic control have on the rotor system? - CORRECT
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ANSWER✔✔-It alters the pitch of the main rotor blades individually and cyclically
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,The angle of attack (AOA) is the angle between the - CORRECT ANSWER✔✔-
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Airfoil chord line and the resultant relative wind
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What item was developed to reduce compass reading errors? - CORRECT
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ANSWER✔✔-A vertical card compass | | |
What effect is principally used to counteract main rotor torque with the NOTAR
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system used on the MD-520N and MD-900 helicopters? - CORRECT ANSWER✔✔-
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Coanda effect |
Which type of drag is caused by production of lift? - CORRECT ANSWER✔✔-
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Induced drag |
Risk management is composed of which four risk elements? - CORRECT
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ANSWER✔✔-Pilot, aircraft, environment, and external pressures | | | | |
What three conditions are necessary for a helicopter to be in danger of a dynamic
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rollover? - CORRECT ANSWER✔✔-Pivot point, rolling motion, and exceeding
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critical angle |
What are the three regions of a rotor in autorotation? - CORRECT ANSWER✔✔-
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Driven, driving, and stall
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What is resultant relative wind? - CORRECT ANSWER✔✔-Rotational relative wind
| | | | | | | | | |
modified by induced flow | | |
, The atmospheric pressure on the top surface of an airfoil decreases as the
| | | | | | | | | | | | |
velocity of the air moving past it increases. This is an example of - CORRECT
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ANSWER✔✔-Bernoulli's principle |
Which is true of helicopter performance in ground effect (IGE)? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-The rotor system becomes more efficient since the ground | | | | | | | | |
interferes with the circulation pattern, and less power is required to hover
| | | | | | | | | | |
Which term is used to describe the weight of an aircraft, including all hydraulic
| | | | | | | | | | | | | |
and oil systems, full, trapped and unusable fuel, and all fixed equipment? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-Basic empty weight | | |
What aerodynamic condition can occur when a helicopter is descending at
| | | | | | | | | | |
greater than 300 fpm, has 20 to 100 percent power applied, and an airspeed less
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than effective translational lift? - CORRECT ANSWER✔✔-Settling with power
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What do these acronyms stand for?
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A. AGW/AUW
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B. MLW
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C. MRW
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D. MTOW
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E. OEW - CORRECT ANSWER✔✔-AGW aka AUW: aircraft gross weight, aka all-up
| | | | | | | | | | | |
weight
MLW: maximum landing weight.
| | |
Questions With Correct Answers
What part of a rotary-wing aircraft makes directional control possible? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-The swashplate |
What is the preferred method of ground movement for helicopters on airports? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-Air taxi | |
What type of helicopter design uses a ducted fan in place of a tail rotor to cancel
| | | | | | | | | | | | | | | | |
torque effect? - CORRECT ANSWER✔✔-The NOTAR design
| | | | | |
Which aerodynamic force(s) must a rotary-wing aircraft balance in order to
| | | | | | | | | | |
hover? - CORRECT ANSWER✔✔-Weight, lift, thrust, and drag
| | | | | | |
How would a high-density altitude affect the performance of a helicopter? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-Performance would be decreased due to low value of the
| | | | | | | | | | |
air density
|
Which pilot-static instrument makes use of both pitot and static pressure? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-Airspeed indicator
| |
What effect does the cyclic control have on the rotor system? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-It alters the pitch of the main rotor blades individually and cyclically
| | | | | | | | | | |
,The angle of attack (AOA) is the angle between the - CORRECT ANSWER✔✔-
| | | | | | | | | | | |
Airfoil chord line and the resultant relative wind
| | | | | | |
What item was developed to reduce compass reading errors? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-A vertical card compass | | |
What effect is principally used to counteract main rotor torque with the NOTAR
| | | | | | | | | | | | |
system used on the MD-520N and MD-900 helicopters? - CORRECT ANSWER✔✔-
| | | | | | | | | |
Coanda effect |
Which type of drag is caused by production of lift? - CORRECT ANSWER✔✔-
| | | | | | | | | | | |
Induced drag |
Risk management is composed of which four risk elements? - CORRECT
| | | | | | | | | | |
ANSWER✔✔-Pilot, aircraft, environment, and external pressures | | | | |
What three conditions are necessary for a helicopter to be in danger of a dynamic
| | | | | | | | | | | | | |
rollover? - CORRECT ANSWER✔✔-Pivot point, rolling motion, and exceeding
| | | | | | | | | |
critical angle |
What are the three regions of a rotor in autorotation? - CORRECT ANSWER✔✔-
| | | | | | | | | | | |
Driven, driving, and stall
| | |
What is resultant relative wind? - CORRECT ANSWER✔✔-Rotational relative wind
| | | | | | | | | |
modified by induced flow | | |
, The atmospheric pressure on the top surface of an airfoil decreases as the
| | | | | | | | | | | | |
velocity of the air moving past it increases. This is an example of - CORRECT
| | | | | | | | | | | | | | |
ANSWER✔✔-Bernoulli's principle |
Which is true of helicopter performance in ground effect (IGE)? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-The rotor system becomes more efficient since the ground | | | | | | | | |
interferes with the circulation pattern, and less power is required to hover
| | | | | | | | | | |
Which term is used to describe the weight of an aircraft, including all hydraulic
| | | | | | | | | | | | | |
and oil systems, full, trapped and unusable fuel, and all fixed equipment? -
| | | | | | | | | | | | |
CORRECT ANSWER✔✔-Basic empty weight | | |
What aerodynamic condition can occur when a helicopter is descending at
| | | | | | | | | | |
greater than 300 fpm, has 20 to 100 percent power applied, and an airspeed less
| | | | | | | | | | | | | | |
than effective translational lift? - CORRECT ANSWER✔✔-Settling with power
| | | | | | | |
What do these acronyms stand for?
| | | | |
A. AGW/AUW
|
B. MLW
|
C. MRW
|
D. MTOW
|
E. OEW - CORRECT ANSWER✔✔-AGW aka AUW: aircraft gross weight, aka all-up
| | | | | | | | | | | |
weight
MLW: maximum landing weight.
| | |
