In a centrifugal compressor, "______________" is the name given for the casing which houses the impeller wheel.

The ___________________ ____________ is a secondary, but vastly popular method of achieving the pumping action, within the reciprocating compressor.

The centrifugal compressor is categorised as a ___________________ compressor, when referring to its method of compression during operation.

The compressor enclosure which requires an external shaft for drive facilities and a separate compartment to contain refrigerant in the compressor is the ___________ ___________.

The rotary compressor is used in domestic and small commercial applications. Now, it is also mainly used on packaged ______ _______________________ equipment.

The name for the classification of compressor which is derived from the Greek word given for “secret airtight container” is

• volute.

• hermetic.

• chamber.

• cylinder.

The part of the reciprocating compressor which may be made of either cast iron, cast aluminum or fabricated steel is the

• valve plate

• ring plate

• volute

• crankcase

The reciprocating compressor's ___________ valve is usually made of spring steel and has small coil springs.

• ring plate

• reed

• impeller

• bearing

The hub and cover disc are found on/in the _______________ of a centrifugal compressor.

• vanes

• shaft

• impeller wheel

• volute