In the described hydraulic system, what is the primary reason for increased cylinder speed when the accumulator is active?

• A. Higher oil temperature
• B. Lower oil pressure
• C. Extra supply of hydraulic oil to the cylinder
• D. Reduced inertial effects

Answer: (C)

The speed boost comes from the extra supply of hydraulic oil the accumulator provides. An accumulator stores pressurized fluid and, when the system demands more flow, it releases that additional oil into the cylinder circuit. That increased flow means more oil is pushed into the cylinder per unit time, so the piston can move faster, assuming the system pressure is enough to push against the load.

Other factors like temperature or friction can affect flow a bit, and a drop in pressure would slow the cylinder, while inertial effects influence how quickly acceleration happens. But the primary reason for the faster cylinder motion when the accumulator is active is the greater amount of hydraulic oil being supplied to the cylinder.