Class 4 (4th Engineer) SC&S 📅 Apr 2023

Exam Question

(a) Sketch a water-tight door and frame showing manner of attachment to bulkhead and the additional reinforcement carried by the bulkhead to compensate for the aperture. (6)

(b) Explain how water-tightness of the door and frame mating surface is ensured with a hydrostatic pressure tending to force the faces apart. (5)

(c) Describe the means of remote closing operation of the door and state how many closing stations there are and their position (5)

Reference Answer

### (a) Watertight Door, Frame, and Bulkhead Reinforcement
A watertight door assembly is a critical safety component designed to maintain the integrity of a vessel's transverse bulkheads in the event of flooding. Its construction and installation are strictly governed by SOLAS regulations.
**Components and Attachment:**
* **Door:** A heavy, robust plate, typically of cast or fabricated steel, stiffened to withstand the maximum potential head of water (hydrostatic pressure).

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play