Class 4 (4th Engineer) SC&S 📅 Sep 2022

Exam Question

Define the main purpose of the following with respect to tanks and pumping system

(a) Weighted cocks on tank sounding pipes (4)

(b) Remote operated gear for bilge valves (4)

c) Ventilation pipes for double bottom tanks (4)

(d) Explain why gauze is sometimes fitted to tank ventilation pipes and explain the effect of mesh size. (4)

Reference Answer

### (a) Weighted Cocks on Tank Sounding Pipes (4 Marks)
The primary purpose of weighted cocks on tank sounding pipes is **safety**, specifically to prevent fire and pollution hazards arising from tank overflows in machinery spaces.
* **Principle of Operation:**
* These cocks are fitted with a weighted handle, often referred to as a 'dead man's handle'.

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