Aircraft Systems II Trivia Quiz

Answer: a small component to prevent cable chafing

A fairlead, which is usually made of phenolic, is placed on an aircraft anywhere that a cable may rub against something which would wear the cable out. Great lengths of cables are used for flight control systems and to actuate the engine throttles.

Answer: Turbine section

The turbine section which has rotating fans in it, turn due to the hot gases that pass through it. In turn, the fan which is connected by a shaft to the compressor section, keeps the compressor turning drawing in new air to the engine, which starts the entire process over again.

Answer: covers the engine

A nacelle is the entire engine covering and houses the engine. Nacelles are only on engines that need a complete cover unlike some engines that are built into the fuselage of an aircraft.

Answer: Stiffeners

After an aircraft has been put into production and wing cracks have been discovered, the wing is modified with a stiffener to add strength to that area of the wing. It is a small brace anywhere from 3" to much larger that helps take the stress in that area.

Answer: directional turning from the tail section

Yaw movement is provided by the rudder on the tail section of the aircraft. It allows the tail to directionally push the aircraft to the left or right. The rudder is used with other flight controls to complete a turn of the aircraft.

Answer: -300f degrees

Lox as it is commonly referred to has a boiling point of -297f degrees. It is an expensive process to convert gaseous oxygen to liquid but the benefits far exceed the cost. An equal sized container of liquid oxygen compared to gaseous oxygen will last 4-5 times longer.

In liquid form it is considered super-concentrated. The lox is warmed thus changing it to a gas before the pilots and passengers breathe it.

Answer: A flight control component

A control tab is built on primary flight controls, i.e. the ailerons, rudder, and elevators. They move in the opposite direction of the actual surface to offset the wind speed and pressures of the air traveling over and under the flight control. It is used to help the pilot move the controls easier.

Answer: Identifies friend or foe

The IFF required by the FAA on most aircraft is an electronic component that identifies friendly aircraft in the area who should be there. It also identifies aircraft from enemy nations.

Answer: Quadrant

A quadrant is a device that changes linear control rod motion into cable motion to save weight on the aircraft in the flight control system. Their are numerous quadrants in this system to do just that. It also does the opposite, as it will change cable motion back to control rod motion.

Answer: swashplate

The swashplate is located just under the rotor head. It rotates with the rotor head and forces the pitch control rods to change the angles of the blades which create more lift or lessen it so they aircraft may descend. It will also make the helicopter move from side to side.