Characteristics
What characteristics do aircraft designers look for when choosing materials? Select all that apply.
a. expensive to maintain
b. heavy weight
c. crack resistant
d. heat resistant
e. corrosion resistant
f. fragile
c. crack resistant
d. heat resistant
e. corrosion resistant
The use of fire-resistant fabrics on passenger airliners is required by _______. (2.B.2)
a. U.S. military
b. All airplane manufacturers
c. NASA
d. the FAA
d. the FAA
A _______ is a turbine engine that uses its rotational energy to turn a propeller. (2.A.1)
a. rotor
b. combustor
c. turboprop
d. compressor
c. turboprop
Multirotor drones move horizontally by tilting their rotors so that thrust is created _______. (2.A.2)
a. faster
b. in a diagonal direction
c. above the rotor
d. below the rotor
b. in a diagonal direction
The _______ of the air inside a hot air balloon decreases as the air inside the balloon gets warmer. (2.A.1)
a. humidity
b. friction
c. density
d. buoyancy
c. density
In order for the aviation industry to survive, _______ must be is its primary concern. (2.B.2)
a. advertising
b. job stability
c. safety
d. low costs
c. safety
Using strong materials in the design and construction of a drone can pose a problem because _______. (2.B.3)
a. they are often heavier
b. they are always more expensive
c. they can’t be used with light materials
d. they conduct electricity
a. they are often heavier
Which of the following is part of the empennage of a fixed-wing aircraft? Select all that apply. (2.A.1)
a. rudder
b. landing gear
c. vertical stabilizer
e. horizontal stabilizer
a. rudder
c. vertical stabilizer
e. horizontal stabilizer
Aircraft manufacturers and their customers benefit when a production facility _______. (2.B.1)
a. has too few employees
b. is run efficiently
c. uses only composite materials
d. is at sea level
b. is run efficiently
True or False. A rotorcraft does not have a fuselage. (2.A.1)
False
Which UAS construction material is the lightest, easiest to shape, and easiest to repair? (2.B.3)
a. plastic
b. titanium
c. foam
d. fiberglass
c. foam
Which of the following are reasons why composite construction materials are used to build aircraft? Select all that apply. (2.B.1)
a. They cost less than steel.
b. They are undetectable.
c. They are lightweight.
d. They are durable.
e. They are government-supplied
c. They are lightweight.
d. They are durable.
Which of the following are composite materials used in the production of aircraft? Select all that apply. (2.B.1)
a. steel
b. carbon-fiber
c. titanium
d. copper
e. fiberglass
b. carbon-fiber
e. fiberglass
Airframe parachutes are most commonly found on _______. (2.B.2)
a. passenger airliners
b. helicopters
c. general aviation aircraft
d. cargo airliners
c. general aviation aircraft
Which of the following is a type of landing gear for a helicopter? Select all that apply. (2.A.1)
a. wheels
b. skids
c. blades
e. floats
a. wheels
b. skids
e. floats
Multirotor drones are a type of _______ aircraft. (2.A.1)
a. recreational
b. manned
c. lighter-than-air aircraft
d. heavier-than-air
d. heavier-than-air
How does an aircraft collision avoidance system work? (2.B.2)
a. It notifies the closest airport when other aircraft are in the vicinity.
b. It points a beam of light to oncoming aircraft.
c. It automatically steers the airplane away from an oncoming aircraft.
d. It warns the pilot when other aircraft are in the vicinity.
d. It warns the pilot when other aircraft are in the vicinity.
An example of a safety feature designed into a general aviation airplane includes ________. Select all that apply. (2.B.2)
a. ballistic parachute system
b. flaps
c. water sprinkler system
d. emergency locator transmitter (ELT)
a. ballistic parachute system
b. flaps
d. emergency locator transmitter (ELT)
Why is it important for there to be no ice on the wing of an airplane? Select all that apply. (2.B.2)
a. Ice makes the wings slippery.
b. Ice makes the airplane heavier.
c. Ice can freeze the engine(s).
d. Ice makes the wings brittle.
e. Ice changes the shape of the wing.
b. Ice makes the airplane heavier.
e. Ice changes the shape of the wing.
What are some of the advantages of using a multirotor drone over a fixed-wing drone? Select all that apply. (2.A.2)
a. travels faster
b. ability to hover
c. travels greater distances
d. better for aerial photography
e. no runway is needed
b. ability to hover
d. better for aerial photography
e. no runway is needed
Which metal is most likely to be used for landing gear assemblies? (2.B.1)
a. steel
b. cast iron
c. aluminum
d. tin
a. steel
When the upward thrust generated by the rotors equals the weight of the drone, the drone is ______. (2.A.2)
a. on the ground
b. descending
c. hovering
d. climbing
c. hovering
What kind of drone requires a tail rotor? (2.A.3)
a. quadcopter
b. fixed-wing drone
c. tricopter
d. single-rotor drone
d. single-rotor drone
The basket of a hot air balloon is similar to the _______ of an airplane or aircraft. (2.A.1)
a. engine
b. cargo
c. fuselage
d. seats
c. fuselage
A powerplant is another name for _____. (2.A.1)
a. pistons inside an aircraft’s motor
b. a single-engine airplane
c. an aircraft’s engine
d. a rechargeable engine battery
c. an aircraft’s engine