compressors chapter 23

compression ratio in absolute pressure (psiga)

Which of the following terminal combinations would show an open circuit if the internal overload device in a hermetic compressor should open due to excessive heat.

The clearance volume of a compressor cylinder is the

The pulley on the motor is called the

The pulley on compressor is called the

If the compression ratio of a system with a reciprocating compressor increases, the amount of refrigerant pumped by the compressor

If the compression ratio of a system with a reciprocating compressor decreases, the amount of refrigerant pumped by the compressor

On a direct drive compressor the ________ is used to connect the compressor shaft and motor shaft together

Over heated oil may turn to carbon and create ______ in the system

rotary compressors are used primarily in ______.

The discus valve design is more efficient than a flapper valve design because ________.

flapper and read valves are use in the ______ compressor

What could happen if a semi-hermetic compressor is operated with the suction service valve back seated and the discharge front seated

The shaft seal on open drive compressor  _______.

Liquid entering the compression chamber of the reciprocating compressor can lead to ________

Connecting rods connect to _______

On a direct drive compressor the _______ is used to insure proper aliment in a flexible coupling

The ______ valves in a reciprocating compressor opens and closes depending on the difference in pressure across them

The screw type compressor is used primarily in ________.

Because a scroll compressor has fewer moving parts, it operates much quieter then other compressor designs and technologies

                     true /false 


True False

The semi hermetic is one type of reciprocating compressor  

                       true / false 



True False

The scroll compressor is one type of reciprocating compressor

                         true /false 


True False

Scroll compressors are becoming popular because they can handle some liquid flood back with out compressor damage

                       true / false


True False

We use two stage compression on a system that would have a compression ratio that exceeds 8.5 : 1 ratio

                           true / false 
True False

A bolted together motor compressor assembly are referred to as a hermetic type

                             true/ false 

On a belt drive compressor the driven pulley is attached to the compressor

                       true /false  
True False