MAJOR FIELD TEST Exam Questions And Answers Verified 100% Correct

MAJOR FIELD TEST Exam Questions And Answers Verified 100% Correct Lift always acts perpendicular to the _______________ - ANSWER Relative wind Wing efficiency - ANSWER ratio of lift pressure to dynamic pressure What is a stall? - ANSWER Reduction of lift caused by the breakup of smooth airflow over the wing Stalls occur when the _____ of attack is ________ - ANSWER critical angle of attack exceeded If we change speed, what else must we change? - ANSWER AOA angles of attack Laminar flow - ANSWER smooth flow of air Turbulent flow - ANSWER rough flow of air What are flaps? - ANSWER Device on the trailing edge of the wing that aids in life production and slow speeds What are flaps used for? - ANSWER Lower t/o and landing speeds, reduce t/o and landing distance, allows steeper descents due to more drag What are the two leading-edge devices? - ANSWER Slot and Slats What is a slot? - ANSWER Fixed in place to help smaller aircraft with short field takeoff and landing What are slats? - ANSWER Slot but moveable What is thrust? - ANSWER The forward force produced by the powerplant Thrust is an acceleration or deceleration? - ANSWER Acceleration How do propellers work? - ANSWER Engine drives the prop, the prop turns, the forward lift or thrust is produced What is blade twist? - ANSWER high angel at the root and low angel at the tip When are props producing the most thrust? - ANSWER Sea level, standard day, full power, stationary Pitch - ANSWER refers to the propellors angel of attack geometric pitch - ANSWER the distance the propellor would advance in one revolution if it were moving along a spiral Effective pitch - ANSWER the actual distance the propeller moves forward in one revolution during flight Slip - ANSWER the difference between geometric and effective pitch Blade angel - ANSWER angle between the propellors chord line and the plane of rotation fixed pitch - ANSWER blade angel cannot move Variable pitch - ANSWER fixed in flight, adjustable on the ground Constant speed prop - ANSWER adjustable blade using hydraulic mechanism called prop governor which is adjust pitch to maintain RPM Best blade angle for t/o - ANSWER set high RPM for max power, low blade angel Best blade angel for cruise - ANSWER Set low RPM and high blade angle What are the four turning tendencies? - ANSWER Torque, asymmetric thrust, gyroscopic precession, and spiraling slipstream torque - ANSWER causes the aircraft to roll/ya left asymmetric thrust (p-factor) - ANSWER descending blade has a high AOA due to the relative wind than the ascending blade gyroscopic precession - ANSWER 90 degrees ahead of the force spiraling slipstream - ANSWER air coming off the propellor doesn't go straight back-it's rotating Four strokes of a reciprocating engine - ANSWER 1. Intake 2. Compression 3. Power 4. Exhaust Five events of a reciprocating engine - ANSWER 1. Induction 2. Compression 3. Ignition 4. Power 5. Exhaust What are the two categories of drag? - ANSWER Induced and parasite Parasite drag - ANSWER drag due to interaction of the airframe with the air Induced drag - ANSWER Anytime a wing creates lift, a small portion of that lift is directed rearward as drag What are the types of parasite drag? - ANSWER Form, skin friction, cooling and interference Form drag - ANSWER an object moving through the air creates an area of low pressure behind it skin friction - ANSWER aerodynamic resistance due to the contact of moving air with the surface of an aircraft interference drag - ANSWER caused by the intersection of airstreams that create eddy currents, turbulence, and restricts laminar flow cooling drag - ANSWER requires inlet that allows for air to flow into the cowling and over the engine for cooling Induced drag is a byproduct of _____________- - ANSWER lift Bernoullis Principle - ANSWER as a fluids speed increases, the pressure within the fluid decreases Newtons Law of Inertia - ANSWER An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force. Newtons Law of force - ANSWER The acceleration of an object depends on the mass of the object and the amount of force applied. Newtons Law of Reaction and Action - ANSWER Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. Critical Altitude - ANSWER Maximum altitude at which, in a standard atmosphere, it is possible to maintain flight at: o At a specified rotation speed o Specified power o Specified manifold pressure Power - ANSWER Rate at which work is performed by a force acting along a distance Air Carrier's Operations Specifications (Ops Specs) - ANSWER Blueprint for 135 and 121 carriers outlining the required weather criteria for determining an alternate Aerospace Department Accreditation - ANSWER Aviation Accreditation Board International (AABI) Weight x Arm = - ANSWER Moment Total Moment / Total Weight = - ANSWER CG (Center of Gravity) Inspection done within the preceding 12 calendar months - ANSWER Annual Inspection Every 100 hours (may be exceeded by 10 hours) - ANSWER 100 Inspection First attempt to standardize and regulate industry - ANSWER Air Commerce Act 1926 · Changed economic and safety regulation o Fixed rates of air mail payments o Separated air transport companies from manufacturers - ANSWER Civil Aeronautics Act 1934 Act that developed CAA - ANSWER Civil Aeronautics Act 1938 Act that gave postmaster general complete control over airlines - ANSWER McNary Waters Act Which of the following is not a type of parasite drag? · Induced · Skin friction · Form · Interference - ANSWER Induced