Q1. With reference to scavenge fires:
(a) State FOUR possible contributing factors. (4)
(b) Explain how EACH factor mentioned in (a) contributes. (8)
(c) State FOUR indications. (4)
Q4. With respect to two-stage reciprocating compressors used for air start purposes:
(a) State FOUR reasons for taking too long to fill the main starting air bottles. (8)
(b) State FOUR safety devices that may be fitted. (8)
Q5. With reference to an auxiliary boiler. state for EACH of the following circumstances the action to be taken, giving a reason for EACH action:
(a) No water level visible in gauge glass (4)
(b) Safety valve lifting (4)
(c) Excessive smoking during firing (4)
(d) Excessively high chloride content of boiler water. (4)
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