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45 Cards in this Set

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  • Back
How many principal structural units are there
in a fixed-wing aircraft?
Nine.
On a semimonocoque fuselage, what component
absorbs the primary bending loads?
Longerons.
What aircraft structure is designed to transmit
engine loads, stresses, and vibrations to
the aircraft structure?
Nacelle.
What is the main structural member of a wing
assembly?
2-17
Figure
Spar.
What is the primary purpose of a stabilizer?
To keep the a/c in straight and level flight.
What type of flight controls provides control
over pitch, roll, and yaw?
Flight controls.
What flight control is operated by a
side-to-side movement of the control stick?
Aileron.
What type of flight control system is used on
aircraft that travel at or near supersonic
speeds?
Power-operated or power-boosted.
What flight control provides lateral control?
Aileron.
What flight control provides longitudinal control?
Elevator.
When is the mechanical control of an F-14
wing sweep used?
Emergency wing sweeps.
Trim tabs, wing flaps, and speed brakes are
all considered what type of flight controls?
Secondary flight controls.
What is the main purpose of a speed brake?
Reducing a/c speed.
What type of shock strut is used on all naval
aircraft?
Air-oil shock strut.
What component of a nose landing gear
resists sudden twisting loads that are applied
to the nosewheel during ground operation?
the shimmy damper.
What force is used to raise the arresting hook
of an aircraft?
hydraulic power.
What component of a catapult system allows
the aircraft to be secured to the carrier deck?
the holdback assymbly
What is the major advantage of a helicopter
over a fixed-wing aircraft?
Lift control are independent of forward speed.
Most Navy helicopters have what fuselage
design?
Monocoque.
What type of stress is produced by two forces
pulling in opposite directions along the same
straight line?
tension.
What force is the opposite of tension?
compression.
What type of stress is a combination of tension
and compression?
Bending
What type of stress is the result of a twisting
force?
Torsion
What is the most widely used metal in modern
aircraft construction?
Aluminum alloy
What is the world's lightest structural metal?
Magnesium.
At what temperature does transparent plastic
become soft and pliable?
225 F.
Radomes, wing tips, stabilizer tips, and antenna
covers are made from what type of
plastic?
reinforced plastic
What metal property allows it to resist
abrasion, penetration, cutting action, and
permanent distortion?
Hardness.
What metal property enables a metal to return
to its original shape after an applied force has
been removed?
Elasticity.
At what temperature does aluminum alloy
become a liquid form?
1,110 F.
What term is defined as the eating away or
pitting of the surface or the internal structure
of a metal?
Corrosion.
What property allows two metals to be
welded, brazed, or soldered?
joining.
What are the three basic metal working
processes?
Hot-working, cold-working, and extruding.
What type of metal contains iron as its
principal constituent?
Ferrous.
What are the two most commonly used
methods of hardness testing?
The Brinell and Rockwell tests.
What are the two classes of wrought alloys?
Heat treatable and nonheat treatable.
What type of metal is used in the construction
of fire walls and fuselage skin adjacent to the
engine exhaust outlet?
Titanium alloys.
What measurement must be taken to
determine the Brinell number of a metal?
The diameter of the impression.
How does a Rockwell tester measure the
hardness of a metal?
Mearsure the depth of the impression.
The Riehle tester is designed for making tests
comparable to what bench type machine?
Rockwell tester.
What hardness tester is used for testing
aluminum alloys, copper, brass, and other
soft metals?
Barcol tester.
What type of plastic will soften when heated
and harden when cooled?
Thermalplastic.
What type of plastic will harden when it is
heated?
Thermosetting.
Plastic sheets should be stored in a bin and
must be tilted at least how many degrees from
vertical?
10.
What are the three types of advanced composites
used on naval aircraft?
Graphite, Boron, and Kevlar.