Which of the following statements concerning the operation of a single-acting hydraulic ram is correct?

Correct Answer: Option B — The single-acting ram is not retracted by means of hydraulic force.

Single-acting rams utilize hydraulic pressure for the power stroke only. Retraction is achieved through external forces such as gravity, mechanical springs, or the weight of the load being moved. They lack the internal porting required for hydraulic retraction, making them simpler in design than double-acting cylinders.