Q8: Boiler automatic combustion control has failed during operation of boiler. Explain: A. Procedures to operate boiler in emergency. B. Action plan to investigate, rectify and bring system to normal boiler operation.
Q9. With reference to a water tube boiler :
a) State the indication that a tube is leaking.
(i) When the amount of leakage is small.
(ii) When the amount of leakage is large.
b) If the failed tube is located within the tube bank.
(i) How can it be identified.
(ii) Describe immediate actions and temporary repairs done.
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