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My SIFT Exam with Complete Solutions, Exams of Advanced Education

American Public University System (APUS)Advanced Education

My SIFT Exam with Complete Solutions

Typology: Exams

2024/2025

Available from 07/09/2025

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My SIFT Exam with Complete Solutions
What are the parts of the test that I will not guess on? And why? - ANS-Simple drawings
Hidden figures
Mechanical comprehension test
Incorrect questions will be subtracted from your overall score.
Hidden Figures Tip - ANS-The hidden figure in each drawing will always have the same
size and posterior as the shape in the answer choice.
Aviation information - ANS-
What parts of the test should I make an educated guess? - ANS-Army aviation
information
Spatial apperception test
Reading comprehension
Math skills test
What is Newton's law of motion also called the law of inertia? - ANS-An object at rest
will stay at rest and an object in motion will remain in motion, at a constant velocity
unless acted upon by an unbalanced force.
What are the four types of friction - ANS-Sliding or Kingston friction
Fluid friction
Rolling friction static friction
What do the pedals do - ANS-The anti torque pedals the pilot is able to adjust the pitch
of the tail rotor this changes the direction the nose of the helicopter is pointed
What does the throttle do - ANS-Throttle control usually takes the form of a motorcycle
style rotating grip. You can increase the amount of power generated by the engine. The
purpose of doing this is to ensure the heli has the right amount of lift.
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My SIFT Exam with Complete Solutions

What are the parts of the test that I will not guess on? And why? - ANS-Simple drawings Hidden figures Mechanical comprehension test Incorrect questions will be subtracted from your overall score. Hidden Figures Tip - ANS-The hidden figure in each drawing will always have the same size and posterior as the shape in the answer choice. Aviation information - ANS- What parts of the test should I make an educated guess? - ANS-Army aviation information Spatial apperception test Reading comprehension Math skills test What is Newton's law of motion also called the law of inertia? - ANS-An object at rest will stay at rest and an object in motion will remain in motion, at a constant velocity unless acted upon by an unbalanced force. What are the four types of friction - ANS-Sliding or Kingston friction Fluid friction Rolling friction static friction What do the pedals do - ANS-The anti torque pedals the pilot is able to adjust the pitch of the tail rotor this changes the direction the nose of the helicopter is pointed What does the throttle do - ANS-Throttle control usually takes the form of a motorcycle style rotating grip. You can increase the amount of power generated by the engine. The purpose of doing this is to ensure the heli has the right amount of lift.

Fun fact. In dual engine aircraft there is usually 2 throttles Flight maneuvers - ANS- What are the four basic flight maneuvers - ANS-Straight and level flight Turns Hovering Climbs and descents What is. Straight and level flight and how do you do it - ANS-When a helicopter moves at a steady altitude and heading. Achieved by tilting the nose forwards The lower the nose the more power required How are turns achieved - ANS-By pushing the cyclic in the desired turning direction. Which causes the rotor to tilt. The anti torque and throttle controls are used in conjunction to ensure altitude is maintained and it's smooth How are climbs and descents achieved - ANS-By Manipulating the collective. This manipulated the amount of lift cause the helicopter to rise or fall as the pilot desires. What is hovering - ANS-When helicopter moves as minimally as possible at a constant heading and altitude AAIT key concepts - ANS- Air Flow in Forward Flight - ANS-Airflow meeting each blade varies with the position of the blade in its circular motion cycle, generating an acceleration revolving in front the tail towards the nose; and deceleration revolving from the nose toward the tail in its counterclockwise motion. What is an airfoil? What is achieved by them - ANS-A surface that contributes to airlift generation by regulating airflow over its upper and lower surface. They achieve horizontal stabilization What is an angle of attack (AOA) - ANS-Angle that depends on the direction of motion of the blade with respect to air and chord line of an airfoil. For example the angle between the rotor blade and net wind passing through it. Angle of incidence (AOI) - ANS-Mechanics angle between chord line do the blade and the circular plane it is rotating in.

You know what weight is - ANS- What is lift - ANS-Lift is upward force created by spinning helicopter blades allowing air to pass over them. You need lift to overcome weight What is the typical helicopter controls - ANS-Cyclic Pedals Throttle Collective What does the cyclic do - ANS-Cyclic looks like a joystick. You can use it to alter the pitch of the main rotor blades which cause thrust in a particular direction What does the collective do - ANS-Located on left side of the pilots seat and moves the pitch angle of the main blades this impacts thrust. It is used to increase or decrease altitude and or air speed Autorotation on while hovering - ANS- What causes blade flapping - ANS-Is caused by greater airlift during hovering. The blade angle is designed in such a way that during hovering air lift is balanced by the centrifugal forces of the spinning wheel. The blades move faster to balance the lift that is increased by airflow or spin of the blades during autorotation while hovering. What is blade spin - ANS-Distance between tip of blade and the drive shave on the rotor it is attached to. What is Blade twist - ANS-A designe feature of a helicopter to distribute air lift evenly throughout the surface of the airfoil. How to attain blade twist - ANS-By generating greater pitch angles toward the blade root on low rotational velocities and vice versa When does the dissymetry of loft occur - ANS-Occurs during helicopter take off. What causes the dissymetry of lift? - ANS-Caused by the difference in amounts of forces experienced by the advancing and the retreating blades of the helicopter on either side of the rotor disc due to forward motion the wind speed on the advancing is more prone to crest imbalance which eventually results in a crash What counters the dissymetry of lift - ANS-Blade flapping What is blade flapping - ANS-When retreating blade flaps down and the advancing blade flaps up What is the unground affect - ANS-When the airstream around the spinning rotor blades provides an extra lift to the helicopter when it is close to the ground.

What is settling with power - ANS-Settling power is the state of a helicopters flight when it descends vertically downward at a about a rate of 5 feet per second and low forward speeds. It is a state of stall when even though the main rotor system is using 20% up to %100 of power The downflow produced by the spinning blades is used to overcome the upflow caused by the drastic descent leading to turbulence. Since maximum power is used by the rotor minimal or no power is available for the pilot to stop this descent. This state is also known as vortex ring state.