UNIT 2 REVIEW

What characteristics do aircraft designers look for when choosing materials? Select all that apply.

• corrosion resistant

• expensive to maintain

• heat resistant

• heavy weight

• crack resistant

In order for the aviation industry to survive, (a)   must be its primary concern.

• advertising

• job stability

• safety

• low costs

Which UAS construction material is the lightest, easiest to shape, and easiest to repair?

• plastic

• titanium

• fiberglass

• foam

Multirotor drones are a type of ​ ​ (a)   aircraft.

• manned

• lighter-than-air aircraft

• heavier-than-air
• recreational

Which metal is most likely to be used for landing gear assemblies?

• steel

• cast iron

• aluminum

• tin

The use of fire-resistant fabrics on passenger airliners is required by (a)   .

• U.S. military

• All airplane manufacturers

• NASA

• the FAA

Using strong materials in the design and construction of a drone can pose a problem because _______.

• they are often heavier

• they are always more expensive

• they conduct electricity

• they can't be used with light materials

When the upward thrust generated by the rotors equals the weight of the drone, the drone is (a)   .

• on the ground

• descending

• hovering
• climbing

Which of the following are reasons why composite construction materials are used to build aircraft? Select all that apply.

• They cost less than steel.

• They are undetectable.

• They are lightweight.

• They are durable.

• They are government-supplied.

How does an aircraft collision avoidance system work?

• It notifies the closest airport when other aircraft are in the vicinity.

• It points a beam of light to oncoming aircraft.

• It automatically steers the airplane away from an oncoming aircraft.

• It warns the pilot when other aircraft are in the vicinity.