Question 211General Subjects - Assistant Engineer

The correct answer is C) double pump unit. The illustrated hydraulic pump graphic symbol GS-0097 depicts a double pump unit, which is a hydraulic component that has two separate pumping elements within a single housing. This configuration allows for simultaneous operation of two independent pumping functions, providing increased hydraulic power and redundancy compared to a single pump unit. The other answer choices are incorrect because: A) a combined pump unit refers to a single pump that can perform multiple functions, B) a series-flow pump unit has the pumping elements arranged in a sequential flow path, and D) a two-stage pump unit has a single pumping element with two distinct pressure stages.