单选题 1分

The speed of a radial piston hydraulic motor is controlled by varying the

  • A.amount of cylinder block offset with respect to the rotor
  • B.fluid flow rate discharged to the motor
  • C.length of the motor piston stroke on the power cycle
  • D.pintle discharge rate to the suction side of the pump

你可能感兴趣的试题

1 单选题 1分
  • A. The high temperature facilitates primary gravity separation
  • B. Most of the oil and organic solvents are raised to the top layer
  • C. The high the temperature is, the more the top oil will be collected
  • D. The high temperature has little use on the separation of emulsified oil
4 单选题 1分
  • A. circuit breaker
  • B. amplifier
  • C. diode
  • D. capacitor
5 单选题 1分
  • A. look for a CO2 extinguisher
  • B. use a soda acid extinguisher
  • C. shut off the fuel supply
  • D. smother the fire with rags