In general, when the single rod cylinder retracts rapidly by differential connection ()
A. the oil is charged into the rod side of the cylinder and discharged from the piston side.
B. the oil is charged into the piston side of the cylinder and discharged from the rod side.
C. the oil is input to both sides of the cylinder
D. none of above
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The swing cylinder transmits ().
A. force
B. torque;
C. curvilinear motion.
D. friction
The running speed of hydraulic cylinder mainly depends on: ()
A. seal of hydraulic cylinder
B. input flow rate
C. pump supply pressure
D. external load
When the differential connection of the hydraulic cylinder is working, the cylinder's ().
A. speed increases
B. pressure increases
C. speed decreases
D. pressure decreases
When the effective area of the piston of the hydraulic cylinder is fixed, the movement speed of the piston depends on ().
A. pressure of oil in hydraulic cylinder
B. load resistance
C. flow rate into hydraulic cylinder
D. output flow of hydraulic pump
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