railway RRB JE (CBT I + CBT II) Mock Test 2024 Refrigeration and Air Conditioning Refrigeration Cycles and Devices Refrigeration Devices
Which of the following compressor, the motor and compressor are enclosed in the welded steel casing and connected by a common shaft?
1
Semi-sealed compressor
2
Close typed compressor
3
Open type compressor
4
Hermitically sealed compressor