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10/7/2024 11:03AM
Embry Riddle Private pilot stage exam
Questions With Verified Answers
What are the three axes of an aircraft and name the associated emotions related to each. -
answer✔Pitching, which is lateral axis, rolling which is longitudical axis, and yawing which is
vertical axis
Name the four forces that act upon an aircraft in relation to straight and level, unaccelerated
flight. - answer✔Thrust, lift, weight, and drag
Explain C.G (Center of Gravity) - answer✔The specific point where the mass or weight of an
aircraft may be set to center. That is, a point around which, if the aircraft could be suspended or
balanced, the aircraft would remain level.
Drag opposes _____, weight opposes ______. - answer✔Thrust, lift
The position of the _____ determines the stability of an aircraft in flight. - answer✔Center of
gravity
List the five major components of an aircraft. - answer✔Fuselage, wings, empennage, landing
gear, power plant.
What are the two control surfaces that are attached to the trailing edge of the wings and explain
the function of each. - answer✔Ailerons: at the midpoint of each wing, they move in opposite
directions to create forces that produce roll.
Flaps: flush with the wing, increases lifting force.
Name the five components of an empennage. - answer✔Horizontal stabilizer, vertical stabilizer,
rudder, trim tabs, elevator.
What part of the aircraft covers the engine and what is its purpose? - answer✔The cowling
covers the engine, and streamlines the flow of air around the engine to help cool the engine by
conducting air around the cylinders.
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10/7/2024 11:03AM
What is the difference between a tricycle gear aircraft and a conventional gear aircraft. -
answer✔The tricycle gear has a wheel in the front, the conventional gear has the wheel in the
back.
How are most aircraft steered? - answer✔Most aircraft or steered by moving the rudder pedals.
Which primary flight control controls pitch? - answer✔The elevator primarily controls flight
pitch.
The primary flight control which controls roll is ______ - answer✔Ailerons
Yaw is controlled by use of a ______ - answer✔Rudder
There are many different types of flaps, give 4 examples - answer✔Slotted flap, basic section,
plain flap, split flap, fowler flap, slotted fowler flap
What are the three categories of instrumentation? - answer✔Control, performance, navigation
instruments.
Where are the PFD and MFD located in the aircraft? - answer✔In the dashboard
Explain semimonocoque construction. - answer✔The semimonocoque construction reinforces
the stressed skin by taking some of the bending stress from the main section of the fuselage, also
includes a firewall.
What is a major advantage of using composite materials in an aircraft? - answer✔Composite
materials has a lighter weight, it is also very smooth, compound, and curved as well as
aerodynamic. It also does not corrode, and it is flexible.
What is a major disadvantage of using composite construction? - answer✔Composite
construction is very fragile.
Define pressure altitude - answer✔The height above the standard data plane, which is a
theoretical level where the weight of the atmosphere is 29.92 HG.
What is density altitude? - answer✔The vertical distance above sea level in the standard
atmosphere at which a given density is to be found. Also it is pressure altitude converted for non-
standard temperature.
The standard atmosphere at sea level is a surface temperature of ______ degrees Fahrenheit, or
______ degrees Celsius, and a surface pressure of ______ HG or ______ MB - answer✔59, 15,
29.92, 1,013.2
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What is the standard temperature lapse rate? - answer✔The lapse rate is one in which the
temperature decreases at a rate of 3.5 degrees Fahrenheit or 2°C for thousand feet up to 36,000
feet. Which is approximately -65°F or -55°C.
What is the standard pressure lapse rate? - answer✔The pressure decreases at one HG Per 1000
feet of altitude gain up to 10,000 feet.
Hi elevations, high temperatures and or high humidity result in what type of density altitude? -
answer✔They all increased density altitude.
A decrease in air density means a _______ density altitude, while an increase in air density
means a ______ density altitude - answer✔Increased, decreased
What type of effect does high density altitude have on aircraft performance? - answer✔High
density altitude has lower performance and efficiency.
Define mean camber line - answer✔The mean camber line is equidistant at all points
Explain angle of attack. - answer✔The angle of attack is defined as the angle formed by the wing
chord line and the relative wind.
Explain how newtons third law applies to an airplane - answer✔The propeller pushes the air to
the plane which is the action, the opposite reaction is the plane going forward.
Which principle states that as the velocity of a moving fluid increases, the pressure with the fluid
decreases? - answer✔Bernoulli's Principle of Differential Pressure
According to Bernoulli's Principle of Differential Pressure, The increase of speed of the air
across the top of an airfoil results in a ______ in pressure - answer✔Decrease
Atmospheric pressure actuates which flight instruments? - answer✔Alternator, airspeed
indicator, vertical speed indicator, manifold pressure gauge.
What is created when the high-pressure area on the bottom of an airfoil pushes around a low-
pressure area on top. - answer✔Tip vortices.
The pressure at 18,000 feet is greater or less then at sea level? - answer✔The pressure at 18,000
feet is less then at sea level.
Calculate pressure altitude using the following information:
Airport elevation 2010 feet, current pressure 29.94. - answer✔(29.92-29.94= -.02)
