What is a hydraulic jump and what do you find at a hydraulic jump? Group of answer choices A hydraulic jump is when a river leaps straight up when it hits a point bar. A hydraulic jump is when a river leaps to the side when it hits a point bar. Hydraulic jumps occur when the flow changes from subcritical to critical, and you find a standing wave at this hydraulic jump. A hydraulic jump is when a river hits a boulder and has enough force to push the boulder over