Class 4 (4th Engineer) SC&S 📅 Jun 2025

Exam Question

(a) Sketch a water-tight door showing manner of attachment to bulkhead and the additional reinforcement carried by the bulkhead to compensate for the aperture. (8)

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

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

Reference Answer

### (a) Watertight Door Sketch, Attachment, and Bulkhead Reinforcement (8 Marks)
A sketch would illustrate the following key components, which are essential for maintaining the structural integrity of the watertight bulkhead after the aperture for the door has been cut.
**1. Watertight Door & Frame:**
* **Door Plate:** A robust steel plate, often stiffened with welded profiles to withstand significant hydrostatic pressure as per SOLAS regulations.

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