题目内容

Howarethepistonsarrangedinpistonpumps?

A. axially
B. radially
C. bothA.andB.
D. noneoftheabove

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Swashplateisusedtochangedisplacementin

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

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