E375 Lesson 3 Review

The Diffuser is located :

• before the compressor

• after the compressor

• after the turbines

In a gas turbine engine, pressure is highest at:

• compressor

• turbine

• diffuser

• combustors

Bleed air is extracted from:

• Compressor

• Diffuser

• Combustor

• Turbine

To prevent flameout in the combustor, what must be created in chamber?

• region of low pressure

• region of cool air through the secondary holes of the flame tube

• region of low axial velocity

Primary Air in the combustor is :

• used for combustion and velocity is high

• used for combustion and velocity is low

• used for cooling and velocity is high

• used for cooling and velocity is low

Which is NOT an advantage of Annular Combustors?

• Good weight savings

• Thinner walls, and less cooling requirements

• No combustion propagation problems from chamber to chamber

• Sections of the Combustor can be easily removed and replaced

Which combustor type is used to keep the length of engine short and reduce shaft length between compressor and turbine?

• Annular

• Can-annular

• Multiple-Can

• Reverse Flow Annular

Afterburners are located just after the :

• combustion chamber

• exhaust section

• turbine section