Turbines
Weight and Balance
Fuel
Electricity
Let it ride
100

The air entrance to a gas turbine engine.

What are the air inlet guide vanes?

100

The horizontal distance from the datum to any point within the aircraft.

What is an arm?

100

This fuel is blue in color.

What is 100LL?

100

Current flows from negative to positive in this theory.

What is electron flow theory?

100

When an aircraft conforms to all its type certificates.

What is Airworthy?

200

These are the 2 elements of a centrifugal-flow compressor.

What are the impeller and diffuser?

200

The point at which all the weight of an aircraft is concentrated and balanced.

What is the Center of Gravity?

200

These fuels are kerosene based.

What is Jet A and Jet A-1?

200

When a conductor is moved through the lines of flux that pass between the poles of a magnet, a flow of electrons is induced in the conductor.

What is electromagnetic induction?

200

This is the governing body of civil aviation in the US.

What is the Federal Aviation Administration (FAA)?

300

The hot section of a gas turbine engine.

What is the turbine section?
300

The max allowable gross weight minus the empty weight on an aircraft.

What is the Useful Load?

300

This is the ability of a liquid to change into a gas at a relatively low temperature.

What is volatility?

300

Materials that oppose the movement of electrons.

What are insulators?

300

This US Military base is a highly classified base where experimental planes are tested for military use.

What is Area 51?

400

This type of duct is used for supersonic flight to reduce the air speed to a subsonic speed.

What is a convergent-divergent duct?

400

6.7 lbs/gallon is the standard weight of this liquid.

What is turbine fuel?

400

Use of filters, separators, and screens removes most of this.

What is contamination?

400

Current flow that continually changes its value and reverses direction.

What is Alternating Current (AC)?

400

The name of the Boeing B-29 used to deliver a nuclear payload to the Japanese city of Hiroshima in World War II.

What is the Enola Gay?

500

The measure of thrust in a turbofan and turbojet engine.

What is Engine Pressure Ratio (EPR)?

500

This is used in an aircraft to attain the desired CG balance when the CG is not within limits or is not at the desired location.

What is a ballast?

500

This substance will take 2 forms in fuel: dissolved and free.

What is water?

500

A device that stores electrical energy in the electrostatic fields made by 2 conductors separated by a dielectric.

What is a capacitor?

500

The first aircraft to fly under turbojet power.

What is the Heinkel He 178?