_____ are commonly used in mechanical-hydraulic governor to sense engine speeds.A.BulbsB.B
_____ are commonly used in mechanical-hydraulic governor to sense engine speeds.
A.Bulbs
B.Bulks
C.Flyweights
D.Flywheels
_____ are commonly used in mechanical-hydraulic governor to sense engine speeds.
A.Bulbs
B.Bulks
C.Flyweights
D.Flywheels
第1题
A.decrease only
B.increase only
C.decrease slightly then returned to original speed
D.increase slightly then returned to original speed
第2题
A.the oil feeding is stopped and replaced by admitting flushing water
B.the flushing water feeding is stopped and replaced by admitting oil
C.the feeding of dirty oil and flushing water is stopped
D.the feeding of dirty oil and flushing water is admitted
第3题
A.scavenging
B.starting
C.cooling
D.blowing
第4题
A.maintain adequate coil back pressure
B.prohibit flashing in the liquid line
C.reduce refrigerant volume in the system
D.reduce compressor discharge line loading
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