题目内容

Swashplateisusedtochangedisplacementin

A. axialpistonpump
B. radialpistonpumps
C. bentaxispistonpump
D. alloftheabove

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Displacementofaxialpistonpumpsarecontrolledby

A. valveplate
B. swashplate
C. eccentricityoftherotor
D. noneoftheabove

Angleofswashplateinaxialpistonpumpcanbeadjusted

A. manually
B. hydraulically
C. bothA.andB.
D. noneoftheabove

Foraxialpistonpumps,whentheangleofswashplatedecreases,

A. outputpressureincreases
B. flowrateincreases
C. flowratedecreases
D. nothinghappens

Foraxialpistonpumps,whentheangleofswashplateiszero,

A. therewill be noflowrate
B. flowrateismaximum
C. flowrateisminimum
D. noneoftheabove