Centrifugal type
Axial flow type
Radial flow type
None of these
Small quantities of air at high pressures
Large quantities of air at high pressure
Small quantities of air at low pressure
Large quantities of air at low pressure
No propeller
Propeller in front
Propeller at back
Propeller on the top
Low speeds
High speeds
Low altitudes
High altitudes
Surrounding air
Compressed atmospheric air
Its own oxygen
