Which statement about the system is supported by the given information?

• A. The cylinder moves faster due to the extra oil from the accumulator when used with the pump.
• B. The cylinder's speed is unaffected by the accumulator.
• C. The accumulator causes the oil to heat up.
• D. The pump alone provides more speed than with accumulator.

Answer: (B)

The speed of the cylinder in a hydraulic system is determined by the flow rate entering the cylinder, which comes from the pump and is controlled by the valve. An accumulator stores pressurized oil to smooth pressure and provide short bursts during rapid demand, but it doesn’t automatically increase the steady flow the pump delivers. So, if the information given indicates that the cylinder speed stays the same with or without the accumulator, it means the accumulator isn’t changing the sustained flow to the cylinder—the pump sets the speed and the valve governs it. The accumulator’s role is to maintain pressure and smooth out transients, not to boost steady-state velocity. The other options imply changes or effects (like a sustained speed increase, heating, or the pump alone delivering more speed) that aren’t supported by the described setup.