Question 164General Subjects - 1st Asst/Chief
70% to passOf the following propulsion modes, which one would operate with a geared-drive featuring a single reduction?
ASlow speed diesel
BMedium speed diesel
CSteam turbine
DGas turbine
AI Explanation
The correct answer is B) Medium speed diesel. Medium speed diesel engines typically operate with a geared-drive featuring a single reduction. This configuration allows the diesel engine to run at its optimal speed while the propeller operates at a lower speed, improving efficiency. In contrast, slow speed diesel engines often have a direct-drive arrangement without a gear reduction, while steam turbines and gas turbines use different propulsion systems that do not feature a single reduction gearbox.
Related Questions
Q@q.QuestionNumber:In a forced-feed lubrication system, what statement is true concerning lube oil ... Q@q.QuestionNumber:For the most efficient centrifuging of residual fuels on motor vessels, the lowe... Q@q.QuestionNumber:In response to a fire in the engine room, who would ordinarily report immediatel... Q@q.QuestionNumber:As a management level engineering officer planning for the departure of a vessel... Q@q.QuestionNumber:Referring to the illustrated psychrometric chart, suppose air at a dry-bulb temp...
Ready to test your knowledge?
Take a General Subjects - 1st Asst/Chief Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App