Fire Mains, Isolating Valves
(a) State the purpose of fitting isolating valves in a ring fire main.(2)
(b) State the type of valve that should be fitted for isolating sections of a ring fire main.(2)
(c) Explain why the type of valve stated in part (b) is used.(3)
(d) State how it is ensured that the isolating valve will operate when required.(1)
(e) State the position of the machinery space isolating valve.(2)
(a) State, with reasons, the type of valve that should be used in EACH of the following situations:
(i) isolating valve within a fire main;(2)
(ii) main engine stand-by cooling water circulating pump discharge.
(2)
(b) With reference to a fuel service tank outlet valve:
(i) describe its operation;(4)
(ii) state the reason for the operation in part (b)(i).(2)
2. Quiz. Study Notes
Sketch a cross-section through a valve suitable for use as an isolating valve in a fire main, labelling ALL parts and stating a suitable material for EACH part.(10)
3. Quiz. Study Notes