Gas Turbine Compressor

What are compressors?

• Mechanical devices used to increase the pressure of a gas.

• Mechanical devices used to increase the pressure of a liquid.

• Electrical devices used to increase the pressure of gas.

• Electrical devices used to increase the pressure of liquids.

How does positive displacement compressor works?

• Reducing volume of gas and increasing pressure.

• Increasing volume and increasing pressure.

• Increasing kinetic energy and increasing pressure.

• Reducing kinetic energy and increasing pressure.

How does dynamic compressor works?

• Reducing volume of gas and increasing pressure.

• Increasing volume and increasing pressure.

• Increasing kinetic energy and increasing pressure.

• Reducing kinetic energy and increasing pressure.

What is the other name of centrifugal compressors.

• Radial compressors

• Axial compressors

• Mixed flow compressors

• Rotary compressors

What type of compressors are usually used in an industrial gas turbine?

• Axial

• Radial

• Mixed

• Rotary

Where are the rotor blades of the compressor attached to?

• Compressor shaft

• Compressor case

• Turbine shaft

• Turbine case

Where are the stator blades of the compressor attached to?

• Compressor shaft

• Compressor case

• Turbine shaft

• Turbine case

All the rotors will spin at the same speed in the compressor.

• True

• False

In an axial compressor, the flow of gas is perpendicular to the axis of rotation.

• True

• False

The compressor can have just rotors and no stators to compress air.

• True

• False