As Chief Engineer you join a vessel enrolled in Continuous Machinery Survey. Approximately what percent of the machinery should be surveyed per year throughout the Special Survey cycle?
• Continuous Machinery Survey (CMS) programs and how they spread work over a full Special Survey cycle (usually 5 years) • The idea that total machinery must be fully covered once within the special survey period • Basic fraction-to-percentage thinking: "whole survey period" divided into "equal yearly portions"
• If all machinery must be completely surveyed once during the full special survey cycle, how could that work be divided into roughly equal annual parts? • Think about how many years are in a typical special survey cycle and what fraction of the total machinery would be done each year if the work is evenly distributed. • Which option best represents an equal yearly share that, when multiplied by the length of the cycle, comes closest to 100% coverage?
• Confirm how many years are in a standard Special Survey cycle under classification rules (often 5 years). • Multiply each percentage choice by that number of years and see which one gives a total closest to 100% of machinery surveyed over the whole cycle. • Ensure you are thinking about even distribution of survey work across all the years, not front‑loading or back‑loading inspections.
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