Class 2 (2nd Engineer) SSEP 📅 Oct 2021

Exam Question

(a) Describe with the aid of a sketch the release arrangement for a machinery space fixed fire-fighting installation using CO2. State in your answer any special need for rapid delivery of the gas and the time permitted for discharge. (10)

(b) Explain precautions to be taken prior release of CO2. (5)

(c) Explain the reasons for securing the CO2 bottles, and what checks are carried out with respect to securing for smooth operation of the system. (5)

Reference Answer

(a) Fixed Fire-Fighting CO₂ Arrangement
System Description:
The main CO₂ bottles store CO₂ in liquid form at a pressure of 56 bar at 20°C and 64 bar at 25°C. Therefore, the CO₂ room temperature must be kept low to prevent excessive pressure buildup.
The release mechanism is housed in the CO₂ release cabinet. Opening this cabinet triggers both an audible and visual alarm in the machinery space.

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