PP 15

In most fwd fan engines, the fan is driven by the turbine that drives. The low-pressure compressor. The high-pressure compressor.

The normal starting sequence for a turbojet engine is. Starter, ignition, fuel. Fuel, ignition, starter.

In-flight, turbine engine flameouts are usually caused by. Interruption of the inlet airflow. Excessive fuel flow.

The type of oil system usually found on most turbojet engines is. Dry sump, pressure and spray. Wet sump, gravity return.

In a gas turbine engine, oil picks up most heat from the. Exhaust turbine bearing. Compressor front bearing.

Compressor bleed air from an axial-flow turbine engine may be used to cool the. Turbine bearing. Ignition exciters.

Last chance oil filters are. Accessible for cleaning only during engine overhaul. Located in the oil tank for daily inspection.

Turbine engine igniters are less susceptible to fouling than reciprocating engine sparks plugs because. The high intensity sprAK cleans the igniter with heat. They operate at lower temperatures.

The 2 common classifications of capacitor ignition systems are. Low & high voltage. Medium & low voltage.

The leads used for turbine engine thermocouples EGT are made of. Chromel & alumel. Copper & nickel.

On a turbine engine, a starter-generator requires a. Drive spline which stays permanently engaged to the engine. Belt-driven pulley.

An electronic torque indicating system includes a cockpit indicator. An electronic transmitter, a hydromechanical sensor and main and torsion drive gears. Only an electronic indicator and wiring.

The air source supplied to an air-turbines. Low pressure, high volume. High pressure, low volume.

A carbon seal found on turbine engines. Normally rides on a highly polished surface. Floats supported only by oil pressure.

Temperature taken aft of the turbine wheel is known as. EGT. TIT.

An engine % of RPM tachometer generator consist of a. 3 phase ac generator. 2 phase dc generator.

What is the primary advantage of an axial airflow compressor over a centrifugal compressor. Greater pressure ratio. Lower maintenance cost.

A turbine engine hot section is particularly susceptible to which of the following king of damage. Cracking. Corrosion.

The nozzle diaphragm of a turbine engine has the function of. Properly directing the gases on the turbine buckets at a correct angle. Sealing compressor air.

The formula of thrust can be derived from. Newton’s 2nd law. Bernoulli’s principle.

A high oil temperature is indicated in a turbine engine although the other parameters are normal. The most probable cause of the condition is. One or more bearing in distress. Faulty EGT probe.

The fan rotational speed of a dual axial compressor fwd fan engine is the same as the. Low-pressure compressor. High-pressure compressor.

What turbine engine section provides for proper mixing of the fuel & air. Combustion section. Diffuser section.

Cracks may occur in a hot section components of a turbine eng if they are marked during inspection with. Lead pencil. Grease pencil.

What drive the fan in most turbofan eng. Turbine. Accessory gearbox.

When staring a turbine engine, a hung start is indicated if the engine. Fails to reach idle rpm, self-sustaing rpm. Accelerates too quickly.

What are the main sections of a turbine eng for inspection purposes. Hot & cold. Front & rear.

What are the two basic elements of the turbine section in a turbine engine. Stator & rotor. Nozzle & shroud.

What are the 2 functional elements in a centrifugal compressor. Impeller & diffuser. Stator & rotor.

Who establishes the recommended operating TBO of a turbine engine used in a general aviation. Engine manufacturer. FAA field office.