Question 118General Subjects - 1st Asst/Chief70% to pass
Which capstan drive arrangement requires a flexible coupling between the reduction gear output shaft and the capstan head input shaft?
AI Explanation
The correct answer is B.
The drive arrangement where the drive motor, electric brake, and gear reducer are mounted on the deck below the weather deck, while only the capstan head is located on the weather deck, requires a flexible coupling between the reduction gear output shaft and the capstan head input shaft. This is necessary to accommodate the relative movement and misalignment that can occur between the components on different decks.
The other options are incorrect because: A) the components are all hung from the underside of the weather deck, so a flexible coupling is not necessary; C) with all components on the weather deck, a flexible coupling is not required; and D) a flexible coupling is not universally required for all three drive arrangements.
Related Questions
#116 As it pertains to the automatic electric brake of a capstan, what statement is true? #117 As it pertains to a "constant-tension" mooring winch, what statement is true? #119 What statement is true concerning the platform interlock devices associated with a winding drum or traction drive cargo elevator onboard ship? #120 For an electro-hydraulic cargo-handling pedestal-type deck crane, what event would result in an immediate stop to all crane motions, including slewing, hoisting, and luffing? #121 If a hydraulic pump is overheating, the cause may be _______________.