a motor
because the hermatic compressor motor must be compatible with the refrigerant and oil circulating in the system.
No
series
Different motor windings in the compressor: Common, Start, Run
In a hermetic compressor, the motor is primarily cooled by the refrigerant flowing through the compressor. As the refrigerant absorbs heat from the motor during its compression cycle, it helps maintain optimal operating temperatures. Additionally, some designs may incorporate oil circulation, which can also aid in dissipating heat from the motor. This effective cooling is essential for maintaining efficiency and preventing overheating in the compressor.
No
No
Ask your teacher. This is a no brainer...
Running from a compressor, a pneumatic motor. Others use electric or petrol motors.
there is a possibility that parts of motor windings has partial damage.
There are compressors with motors designed to run on DC. A compressor with an AC motor can't.