ROCN case studies
ROCN · Put your knowledge to work in context.
The Reserve Officer Candidate Navy (ROCN) Selection Battery is a multiple-choice assessment used to evaluate candidates for naval reserve officer programs. It is intended for individuals seeking a commission in the Navy Reserve, including college students, graduates, and prior-enlisted personnel. The battery measures a range of cognitive and applied skills: verbal reasoning, quantitative reasoning and mathematics, mechanical comprehension, spatial and perceptual ability, general science, reading comprehension, basic naval knowledge and orientation, and leadership and situational judgment. These domains reflect the mix of analytical ability, technical aptitude, and service knowledge expected of a reserve officer. The ROCN case studies are 5 cases and about 2,757 words.
1Forecastle Line-Handling Dispute During RAS
You are the operations officer aboard a frigate preparing for a daylight underway replenishment. In 12 minutes the ship must be steady on RAS course, wind 22 knots from the port bow, sea state 4.
559 words, about 3 min2Fuel Endurance Decision Before Transit
You command a destroyer with 260 tons of F76 fuel remaining out of a 600-ton capacity. Standing orders require arrival in port with at least 10 percent of capacity plus 24 hours of emergency generator fuel at 1.0 ton per hour.
535 words, about 3 min3Windlass Pressure Loss During Anchor Recovery
During anchor recovery in 28 meters of water, the hydraulic windlass must lift a 2.4-ton anchor and 60 meters of chain at about 9 meters per minute. Normal performance is 150 bar at 52 liters per minute with oil at 45 degrees Celsius.
574 words, about 3 min4Flooding Boundary Decision After Hull Breach
The ship has a second deck divided by transverse watertight bulkheads at frames 40, 48, and 56 and by a centerline longitudinal bulkhead. A collision has opened the shell plating in compartment 2S, frames 40 to 48 starboard.
525 words, about 3 min5Radar Contact on Reciprocal Bearing
Own ship is on course 090, speed 15 knots. In fog with visibility 2 nautical miles, radar shows a single contact bearing 030, range 12 nautical miles, course 210, speed 20 knots.
564 words, about 3 min